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ShipMo3D Version 3.0 User Manual for Creating Ship Models

1. C 4 Sample Patch Tank Input File for SM3DPanelSloshTank3 C 5 Sample Output File for SM3DPanelSloshTank3 Files for Sloshing Tank Radiation Computations with SM3DRadSloshTank3 D 1 Format of Input Sloshing Tank Radiation File for SM3DRadSloshTank3 o bate Ae Sp a us D 2 Sample Input File for SM3DRadSloshTank3 D 3 Sample Output File for SM3DRadSloshTank3 Files for Building Ship with SM3DBuildShip3 E 1 Format of Input Ship File for SM3DBuildShip3 E 2 Sample Input File for SM3DBuildShip3 E 3 Sample Output File for SM3DBuildShip3 DRDC Atlantic TM 2011 307 109 109 124 128 129 131 137 137 149 150 161 161 vii List of tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 viii Command Line Options for ShipMo3D Applications 6 SM3DPanelHull Summary 2 24 pe mu BEE e dus 10 Guidelines for Ordering of Offsets and Hull Lines for Different Hull Portions 1 as and e BEER RIES Ma AM UE 13 SM3DRadDif Summary ah Roe e da BEE n eee HY 17 SM3DPanelSloshTank Summary 20 SM3DRadSloshTank Summary 23 SM3DBuildShip Summary a a A BR EE ae 26 DRDC Atlantic TM 2011 307 List of figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figu
2. Q OD 155 9 650 0 424 0 008 0 152 0 001 30 9 9 700 0 426 0 007 0 152 0 001 28 9 9 750 0 428 0 006 0 152 0 001 26 9 9 800 0 430 0 005 0 152 0 001 24 3 9 850 0 434 0 005 0 152 0 001 23 3 9 900 0 439 0 005 0 152 0 001 21 9 9 950 0 446 0 009 0 152 0 001 21 2 10 000 0 448 0 024 0 152 0 001 22 1 Infinite 0 477 0 000 0 153 0 000 Lateral modes Encounter Sway Roll Yaw Condition frequency Added Damping Added Damping Added Damping number rad s mass mass mass 0 000 0 963 0 000 0 170 0 000 0 153 0 000 0 050 0 963 0 000 0 170 0 000 0 153 0 000 4 7 0 100 0 963 0 000 0 170 0 000 0 153 0 000 4 7 0 150 0 964 0 000 0 170 0 000 0 153 0 000 4 7 0 200 0 965 0 000 0 170 0 000 0 153 0 000 4 7 0 250 0 967 0 001 0 170 0 000 0 153 0 000 4 7 0 300 0 969 0 001 0 170 0 000 0 153 0 000 4 7 0 350 0 971 0 001 0 170 0 000 0 153 0 000 4 7 0 400 0 974 0 002 0 170 0 000 0 153 0 000 4 7 0 450 0 977 0 002 0 170 0 000 0 153 0 000 4 7 0 500 0 980 0 003 0 170 0 000 0 153 0 000 4 7 0 550 0 984 0 004 0 170 0 000 0 153 0 000 4 7 0 600 0 988 0 005 0 170 0 000 0 153 0 000 4 8 0 650 0 993 0 005 0 171 0 000 0 153 0 000 4 8 0 700 0 998 0 006 0 171 0 000 0 154 0 000 4 8 0 750 1 003 0 007 0 171 0 000 0 154 0 000 4 8 0 800 1 010 0 009 0 171 0 000 0 154 0 000 4 8 0 850 1 016 0 010 0 171 0 000 0 154 0 000 4 9 0 900 1 024 0 011 0 172 0 000 0 154 0 000 4 9 0 950 1 031 0 013 0 172 0 000 0 154 0 000 4 9 1 000 1 040 0 015 0 172 0 001 0 154 0 000 5 0 1 050 1 050 0 017 0 172 0 001 0 154 0
3. camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above cam ViewAngleDeg Camera view angle deg Record 21e Panelled Hull Lighting Settings This record is optional if a plot is being specified lighting ambient LightIntensity directLightIntensity directLightHorAngleDeg directLight VertAngleDeg 1 character string 3 floats lighting Record tag ambientLightIntensity Ambient light intensity default 0 5 directLightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above default 45 deg DRDC Atlantic TM 2011 307 59 Record 21f Panel Hull Plot Options This record is required if a plot is being specified panelPlotOptions showWetDry colourTable showStarboardOption smoothShadeOption 5 character strings panelPlotOptions wetDryOption colour Table showStarboardOption smoothShadeOption Record tag Option for displacing wet and or dry hull Wet Wet hull only is plotted Dry Dry hull only is plotted dryPanelOption must be DryPanel in Record 15 WetDry Wet and dry hulls are plotted together dryPanelOption must be DryPanel in Record 15 Col
4. pairOption Record tag pairOption Option for input of single rudder or pair of rudders Single Input given for a single rudder Pair Input is used to create a pair of rudders Input dimensions should be provided for the port rudder Record 16d2 Rudder Label This record must follow Record 16d1 label label 2 character strings label Record tag label Label for rudder This can include spaces If pairOption is set to Pair in Record 16d1 then the port and starboard rudder labels will be prefixed with Port and Starboard respectively Record 16d3 Rudder Key This record must follow Record 16d2 key key 2 character strings key Record tag key Key for rudder This should consist of a single word with no spaces If pairOption is set to Pair in Record 16d1 then the port and starboard rudder keys will be prefixed with Port and Starboard respectively Note that the key cannot be equal to All 186 DRDC Atlantic TM 2011 307 Record 16d4 Rudder Dimensions This record must follow Record 16d3 dimen station yRoot zBlRoot span chordRoot chordTip dihedralDeg 1 character string 7 floats dimen Record tag station Station of centroid yRoot Lateral offset of root m port zBlRoot Vertical coordinate of root relative to baseline m up span Span m chordRoot Chord length at root m chordTip Chord length at tip m dihe
5. xOffset Record tag xOffset x coordinate for all offsets on tank line The x coordinates are local tank coordinates increasing in the forward direction Record 5d2 X coordinates for Tank Line Offsets Record 5d must be followed by either Record 5d1 or Record 5d2 x station 1 character string nOffset floats xOffsets Record tag xOffsets Array of x coordinates for offsets on tank line The x coordinates are local tank coordinates increasing in the forward direction 126 DRDC Atlantic TM 2011 307 Record 5d3 Y Offsets for Tank Line yOffsets yOffsets 1 character string nOffset floats yOffsets Record tag y Offsets Array of nOffset y offsets where nOffset is the number of offsets on the tank line It is assumed that the tank is located on the ship centreline and is symmetrical about the y axis Record 5d4 Z Offsets for Tank Line zOftsets zOffsets 1 character string nOffset floats zOffsets Record tag zOffsets Array of nOffset z offsets relative to the baseline where nOffset is the number of offsets on the tank line Note Records 5d3 and 5d4 and Record 5d2 if used must contain data for the same number of offsets Record 5d5 End of Data for Tank Line end tankLine 1 character string with 2 words Record 5e End of Data for Patch end patch 1 character string with 2 words Record 6 End of Data for Patch Sloshing Tank end
6. Ipp stationAP 1 character string 2 floats lengthData lpp stationAP Note Record tag Ship length between perpendiculars m Station number of the aft perpendicular This value is typically 20 0 The values in this record must agree with the values used for the patch hull input file patchHullInputFileName from Record 5 Values are considered to be in agreement when they are within a tolerance of 0 001 m for length and 0 001 for the station of the aft perpendicular Record 10 Patch Parameters for Fitting B splines to Surfaces This record is optional patchFitParam nuMax nvMax spacingMin puMax pvMax 1 character string 2 integers 1 float 2 integers patchFitParam Record tag nuMax nvMax spacingMin puMax pvMax Maximum number of control segments in u direction for fitted patch default 40 Must be in the range 5 lt nuMax lt 40 Maximum number of control segments in v direction for fitted patch default 40 Must be in the range 5 lt nvMax lt 40 Minimum nominal spacing between control points on a fitted surface default 0 001L This value must be lt 0 01 Lpp Maximum degree of fitted B splines in u direction default 3 Maximum degree of fitted B splines in v direction default 3 DRDC Atlantic TM 2011 307 49 Record 11 Plot Output Option This record is optional plotOutOption plotOutOption 2 character strings plot OutOption
7. 3560 4341 4605 4905 5385 2925 2891 0000000000000 00000000000000000000000000o00o00o 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 U BUbc55 CO OO OOOOOOOOOOOOOOOOO 7446 7740 7933 7656 6947 6019 5090 4356 3883 3595 3388 3218 3080 2973 2887 2772 2720 2680 2630 CO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 UU BUU55 0000 0021 0116 0141 0208 1082 2090 2313 1636 0969 0688 0469 0281 0153 0049 0005 0057 0087 0045 20 24 30 39 69 79 91 102 113 121 1113 1114 1459 849 1231 983 2549 1944 1242 1191 1277 1245 1228 1210 2495 1555 1428 1109 1892 1584 1226 1108 889 941 775 581 563 606 582 576 Condition number 10 10 10 11 12 14 17 22 28 38 50 65 83 105 129 161 224
8. 5894 4118 2818 1822 1163 0676 0175 9942 9786 9647 0000 0005 0038 0127 0296 0494 0587 0554 0483 0494 0527 0515 0532 0534 0538 0511 0504 0489 0466 9 4737 1446 6935 4716 3116 1841 1108 0819 0659 0526 0442 0378 0331 0305 0276 0255 0274 O OOOOOOOOOOOOOORMND 0000 Infinite 0946 1700 2111 2177 2005 1704 1365 1076 0862 0708 0591 0497 0421 0359 0317 0274 0238 0202 7769 0000000000000 00000000000000000000000o Q G E PP PPP PPP M GO OO 1258 1515 1750 1906 1971 2010 2014 1979 1926 1863 1601 1544 1500 1446 1378 1339 1112 1230 1216 1228 1176 1180 1162 1108 1301 2039 0409 0425 0554 0403 0222 0217 0164 0132 0149 0038 0021 0114 0193 0138 0000 B055 0000 0024 0221 1218 5177 4741 8604 1551 8396 8552 7584 7236 5982 4545 2840 2010 0297 8572 6762 CRA G GO GO O O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO oooo 0368 0366 0342 0330 0274 0262 0244 0229 0217 0204 0151 0138 0136 0121 0108 0100 0098 0088 0086 0090 0083 0087 0083 0082 0181 0020 0086 0073 0030 0108 0107 0125 0156 0007 0514 1000 0275 0019 0085 0326 0158 U BUpd55 0 0 2779 2585 2372 2333 2556 2821 2884 2808 2945 3072 3172 3373
9. DRDC Atlantic TM 2011 307 191 Record 17a4 Fixed Pitch Propeller Dimensions This record must follow Record 17a3 dimen station y zBl diameter 1 character string 4 floats dimen Record tag station Station y Lateral offset of centre m port zBl Vertical coordinate of centre relative to baseline m up diameter Diameter m Record 17a5 Fixed Pitch Propeller Hydrodynamic Coefficients This record must follow Record 17a4 propCo wakeFraction thrustDeduction 1 character string 2 floats propCo Record tag wakeFraction Wake fraction coefficient thrustDeduction Thrust deduction coefficient Record 17a6 Fixed Pitch Propeller Thrust Coefficient Quadratic Equation Terms Either this record or Record 17a7 must follow Record 17a5 thrustCoQuadratic kt0 ktj1 ktj2 1 character string 3 floats thrustCoQuadratic Record tag kt0 Thrust coefficient constant term ktj1 Thrust coefficient linear term ktj2 Thrust coefficient quadratic term Note The thrust coefficient is evaluated by Kr kt0 ktjl Joop ktj2 J prop where Jprop is the propeller advance coefficient 192 DRDC Atlantic TM 2011 307 Record 17a7 Fixed Pitch Propeller Input Thrust Coefficients Either this record or Record 17a6 must follow Record 17a5 thrustColnput j1 kt1 j2 kt2 j3 kt3 1 character string 6 floats thrustColnput Record tag jl First advance co
10. normalRanges Record tag nxMinLimit Minimum z normal component for patch surface nxMaxLimit Maximum z normal component for patch surface nyMinLimit Minimum y normal component for patch surface nyMaxLimit Maximum y normal component for patch surface nzMinLimit Minimum z normal component for patch surface nzMaxLimit Maximum z normal component for patch surface Note The input normal ranges are intended to be broad ranges used for checking that generated panels aren t pointing in the wrong direction Hull normals point outward from the hull Record 5c Limit on Maximum Area for Panels on Patch This record is optional areaPanelLimit areaPanelLimit 1 character string 1 float areaPanelLimit Record tag areaPanelLimit Limit of maximum panel area on patch A default of 10 is used if this record is omitted This record can be used for areas requiring a finer mesh size than the remainder of the hull such as a bulbous bow with sharp curvature Record 5d Beginning of Hull Line Data A patch is described by repeated series of Records 5d to 5d5 representing hull lines A patch must consist of at least 2 hull lines begin hullLine 1 character string with 2 words DRDC Atlantic TM 2011 307 63 Record 5d1 Station for Hull Line Offsets Record 5d must be followed by either Record 5d1 or Record 5d2 If Record 5d1 is used then all offsets on a hull line must have the same station st
11. 048 027 025 058 078 092 109 115 124 127 129 132 134 135 137 138 139 141 142 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 002 002 002 002 002 003 003 003 004 004 005 005 006 006 007 008 010 013 016 023 035 061 136 362 287 096 041 022 013 009 006 005 004 003 003 002 002 002 002 002 001 001 001 001 001 oU0O0ODOOO0OO0O0O0O0O0O0O0O0O0O0O0O0O0O00000000000000000000000000000n 9 155 155 155 155 155 155 156 156 156 156 156 157 157 157 157 157 158 158 158 158 159 159 159 160 160 160 161 161 161 162 162 163 163 164 164 165 166 166 167 168 169 170 171 172 173 o0o00O0O0O0O0O0O0O0O0O0O0O0O0O0O0O0O000O00000000000000000000000000000sno9s9 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 002 002 002 002 002 002 ho KA 0 Odd d DD O LA G O LU KM KM L KK KK A LA NW AUAN O G L FPWONTODPRWONP d RAR WO S N N 01 GKM O S J WQ O 0 O1 G G G Q OM QM OD 178 166 105 72 55 45 40 40 45 56 77 120 197 220 118 84 65 54 46 41 39 38 157 3 750 0 072 0 005 0 143 0 001 0 174 0
12. NP NN OO O Q a 899 176 742 980 276 488 700 912 632 588 591 828 553 765 977 189 793 819 505 382 3 594 d KM O O O N 806 575 153 446 711 765 977 189 401 N OU O OO OO OH NN ON Oo LA 804 005 784 553 765 977 189 501 827 631 856 829 041 253 465 949 988 534 659 871 083 945 206 479 041 253 465 MD O1 KA ad GB OO N d OWONOON O 682 189 819 032 829 041 253 465 359 021 663 049 106 318 530 401 939 122 564 935 4 147 O a 359 684 246 512 318 530 742 O1 KX OO DD W O 503 337 849 214 106 318 530 401 180 177 690 382 3 594 O H O a 806 804 229 593 212 424 636 173 280 545 594 806 018 O 186 456 876 382 3 594 O 806 892 301 718 659 3 871 O H O O 083 465 313 622 488 700 912 521 313 578 871 083 295 O Kk O H O O 473 400 745 935 4 147 359 955 379 765 977 189 771 346 147 359 571 71 yOffsets 0 000 0 406 4 924 5 410 5 643 5 775 5 846 5 890 5 931 5 972 6 013 6 055 6 096 6 137 6 178 6 219 6 260 6 302 6 343 6 384 6 425 6 466 6 507 zOffsets 3 611 3 611 3 871 4 147 4 424
13. advancesForceCo Advance coefficients for input propeller force coefficients Record 19a9 Azimuthing Propeller Thrust Coefficients for Input An gle of Attack This record must be repeated nAttackAngleForceCo times where nAttackAngleForceCo is the number of attack angles specified in Record 19a7 thrustCosAttack attackAngleDeg thrustCosAttack 1 character string 1 nAdvanceForceCo floats thrustCosAttack Record tag attackAngleDeg Angle of attack for input thrust coefficients This value must correspond to an input angle in Record 19a7 thrustCosAttack Thrust force coefficients for angle of attack The thrust coefficients must correspond to the advance coefficients in Record 19a8 DRDC Atlantic TM 2011 307 199 Record 19a10 Azimuthing Propeller Normal Force Coefficients for Input Angle of Attack This record must be repeated nAttackAngleForceCo times where nAttackAngleForceCo is the number of attack angles specified in Record 19a7 normalForceCosAttack attackAngleDeg normalForceCosAttack 1 character string 1 nAdvanceForceCo floats normalForceCosAttack Record tag attackAngleDeg Angle of attack for input normal force coefficients This value must correspond to an input angle in Record 19a7 normalForceCosAttack Thrust force coefficients for angle of attack The thrust coefficients must correspond to the advance coefficients in Record 19a8 Record 19a11 Advance Coeffici
14. label label 2 character strings label Record tag label Label for run This can include spaces Record 3 Beginning of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input begin note 1 character string with 2 words Record 3a Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input noteText character string noteText Text of note Multiple lines can be entered Record 3b End of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input end note 1 character string with 2 words DRDC Atlantic TM 2011 307 83 Record 4 Wet Panel Hull File Name wetPanelFileName wetPanelFileName 2 character strings wetPanelFileName Record tag wetPanelFileName Name of file describing hull produced by SM3DPanelHull3 This file is in NET binary serialization format Record 5 Radiation and Diffraction Database File Name radDifDBFileName radDifDBFileName 2 character strings radDifDBFileName Record tag radDifDBFileName Name of output file of radiation and diffraction computations in NET binary serialization format Record 6 Length Data lengthData Ipp stationAP 1 character string 2 floats lengthData Record tag Ipp Ship length between perpendiculars m station AP Station number of the aft p
15. zBlRoot Vertical coordinate of root relative to baseline m up span Span m chordRoot Chord length at root m chordTip Chord length at tip m dihedralDeg Dihedral angle deg xOffset x offset of propeller when azimuth deflection is 0 degrees m diameter Propeller diameter m DRDC Atlantic TM 2011 307 197 Record 19a5 Azimuthing Propeller Incident Flow and Thrust Deduc tion Coefficients This record is optional If this record is not included then default values are used incFlowCo wakeFraction flowStraighteningCo thrustDeduction 1 character string 3 floats incFlowCo wakeFraction flowStraighteningCo thrustDeduction Record tag Influence of local flow effects on reducing flow velocity due to ship forward speed default 0 0 Coefficient for reducing the incident flow velocity component normal to the azimuthing propeller due to flow straightening effects This coefficient typically has a value between 0 0 and 1 0 with a value of 1 0 indicating that the local normal flow velocity isn t influenced by the propeller hull or other effects default 1 0 For a vertical azimuthing propeller most common case the flow straightening coefficient only influences the incident lateral flow velocity Thrust deduction coefficient for thrust along ship longitudinal axis This coefficient represents the influence of the propeller on the hull pressure field default 0 0 Record 19a6
16. 012 011 011 010 010 010 010 010 011 GO GO GO O OOO OOO OOO OOO OOO OOO OOO OO OOO OOO OOO OOO OO O OO O 142 145 147 147 148 148 149 149 149 149 149 O 9 9 C G C9 C9 C9 C9 oo 00 000 000 0000 00 0000000 0090 CC COCO CG9 CG9 C9 C9 CO C 001 001 001 002 012 006 002 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 004 002 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 o o O C9 C oO Oo O O O O0 e e e l ae e Iae e OoOO e OOOO a a ae e 00 0090 e ae a ee a ae ae ae O fd 156 166 181 204 245 268 031 001 040 063 077 087 094 100 105 108 111 115 118 121 124 127 131 136 142 151 164 176 104 066 080 091 099 105 108 111 113 116 118 120 122 125 127 130 135 O O O OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 006 009 014 026 062 220 211 058 024 012 007 005 004 003 003 003 002 002 002 002 002 002 003 004 006 011 023 062 110 047 019 010 006 005 004 003 002 002 002 001 001 002 002 003 005 34 38 50 T9 147 135 134 T4 69 86 65 46 50 68 76 70 59 67 60 50 55 55 46 47 51 49 56 86 84 63 61 51 49 54 52 46 40 47 52 44 36 36 40 38 37
17. 1 000 default 0 0 8 rad 0 O rad 2 0 deg deg s deg s rad s fraction of critical s DRDC Atlantic TM 2011 307 Autopilot displacement gains Surge 0 000 deg m Sway 0 000 deg m Heave 0 000 deg m Roll 0 000 deg deg Pitch 0 000 deg deg Yaw 4 000 deg deg Autopilot velocity gains input Surge 0 000 deg m s Sway 0 000 deg m s Heave 0 000 deg m s Roll 0 000 deg deg s Pitch 0 000 deg deg s Yaw 8 000 deg deg s Autopilot integral gains Surge 0 000 deg m s Sway 0 000 deg m s Heave 0 000 deg m s Roll 0 000 deg deg s Pitch 0 000 deg deg s Yaw 0 000 deg deg s Autopilot integration time 0 000 s default End of lift surface input Rudder keys and labels Key Label Rudder Rudder Propeller input Input for fixed pitch propeller pair dimensions given for port propeller Label Propeller Key Propeller Propeller dimensions Station 18 500 Y of centre 2 900 m Z of centre above baseline 0 200 m Diameter 4 000 m Hydrodynamic characteristics Wake fraction 0 000 Thrust deduction coefficient 0 000 Input thrust quadratic coefficients given as input Thrust coefficient kt0 0 400 Thrust coefficient ktj1 0 200 DRDC Atlantic TM 2011 307 227 Thrust coefficient ktj2 0 160 Thrust coefficient Kt kt0 ktji Jadvance ktj2 Jadvance 2 Propeller controller parameters Minimum RPM 300 000 deg Maximum RPM 300 000 deg Respons
18. 418 437 469 423 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 015 013 011 011 010 009 009 009 008 008 008 008 008 008 008 009 010 012 016 027 074 380 205 064 034 023 018 016 014 013 012 011 011 010 010 009 009 009 009 009 010 012 019 051 166 GO GO GO O OOO OOO OOO OOO OOO OOO OOO OO OOO OOO OOO OOO OO O OO O 140 141 142 143 144 144 145 145 146 146 147 147 147 148 148 148 149 149 142 144 146 147 147 148 148 148 148 149 149 149 149 149 149 O OO OOO OOO OOO OO OOO OOO OOO OOO OOO OO OOO OOO OOO OO O O O 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 003 012 007 003 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 002 004 57 77 136 145 75 59 64 106 254 150 173 90 69 86 162 149 AE 52 45 53 77 130 107 61 51 63 81 68 65 68 60 52 68 126 104 78 75 85 72 53 50 53 48 51 69 Qn NN KM OO OO OO HO O amp NO NN S LG WO NUAN G OO OO KA K OON FF OFWBWBA OU ND OO DRDC Atlantic TM 2011 307 400 450 500 550 650 700 750 750 800 850 O CO CO CO LO o o CO CO CO CO DDO O0 O0 CO O0 O0 O0 O0 CO CO O0 CO O0 O
19. 872 382 3 594 O 806 120 692 052 382 3 594 O 806 416 895 162 382 3 594 O 806 568 981 193 382 3 594 806 023 436 913 871 083 504 762 083 659 871 083 826 946 188 659 871 083 972 217 871 083 69 begin hullLine station 11 yOffsets 0 000 0 169 1 428 2 687 3 956 4 930 5 513 5 913 6 207 6 429 6 598 6 729 6 829 6 905 6 960 7 001 7 033 7 060 7 086 7 115 7 144 7 168 7 193 7 217 7 241 7 265 7 290 7 314 7 338 7 507 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 9 401 end hullLine begin hullLine station 12 yOffsets 0 000 0 169 1 428 2 677 3 833 4 758 5 372 5 797 6 107 6 340 6 519 6 656 6 761 6 842 6 905 6 954 6 994 7 028 7 058 7 087 7 116 7 143 7 170 7 198 7 229 7 259 7 288 7 314 7 338 7 507 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 9 401 end hullLine begin hullLine station 13 yOffsets 0 000 0 169 1 383 2 554 3 624 4 500 5 129 5 582 5 920 6 177 6 376 6 532 6 652 6 746 6 820 6 878 6 923 6 960 6 993 7 024 7 056 7 086 7 115 7 143 7 169 7 193 7 218 7 242 7 266 7 437 zOffsets
20. Option for Symmetry of Input Azimuthing Propeller Force Coefficients This record must follow Record 19a4 or 19a5 forceCoSymOption forceCoSymOption forceCoSymOption 198 forceCoSymOption 2 character strings Record tag Option for specifying whether force coefficients are symmetrical with respect to attack angle SymForceCo Input force coefficients are symmetrical with respect to attack angle NoSymForceCo Input force coefficients are not symmetrical with respect to attack angle DRDC Atlantic TM 2011 307 Record 19a7 Attack Angles for Azimuthing Propeller Force Coeffi cients This record must follow Record 19a6 attackAnglesForceCo attackAnglesForceCoDeg 1 character string array of floats attackAnglesForceCo Record tag attackAnglesForceCoDeg Flow attack angles for input propeller force coefficients degrees If forceCoSymOption in Record 19a6 is set to SymForceCo then flow attack angles must begin with zero degrees and can have a maximum value of 180 degrees If forceCoSymOption in Record 19a6 is set to NoSymForceCo then flow attack angles should begin with a negative value and can have a maximum value of 180 degrees Record 19a8 Advance Coefficients for Azimuthing Propeller Force AziPropeller AttackForceCo This record must follow Record 19a6 advancesForceCo advancesForceCo 1 character string array of floats advancesForceCo Record tag
21. Patch Tank Surface Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm Record 14d Patch Tank Surface Camera Settings This record is required if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats Camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above camViewAngleDeg Camera view angle deg 116 DRDC Atlantic TM 2011 307 Record 14e Patch Tank Surface Lighting Settings This record is optional if a plot is being specified lighting ambientLightIntensity directLightIntensity directLightHorAngleDeg directLight VertAngleDeg 1 character string 3 floats lighting Record tag ambient LightIntensity Ambient light intensity default 0 5 directLightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above
22. This record is optional if a plot is being specified longColumns surgeColumn heaveColumn pitchColumn 4 character strings longLatColumns Record tag Values for each of the following can be one of Left Right Hide surgeColumn Column of surge graph heaveColumn Column of heave graph pitchColumn Column of pitch graph Note The values in this record will override values set based on longLatOption in Record 27d DRDC Atlantic TM 2011 307 213 Record 27f Column Options for Lateral Modes This record is optional if a plot is being specified latColumns swayColumn rollColumn yawColumn 5 character strings latColumns Record tag Values for each of the following can be one of Left Right Hide swayColumn Column of sway graph rollColumn Column of roll graph yawColumn Column of yaw graph Note The values in this record will override values set based on longLatOption in Record 27d Record 27g End of Retardation Function Plot Data end retardPlots 1 character string with 2 words Record 28 Evaluation of Propeller RPM for Ship Speed Option rpmSpeedOption rpmSpeedOption 2 character strings rpmSpeedOption Record tag rpmSpeedOption Option for computing propeller RPM for specified ship speeds rpmSpeed Required propeller RPMs are evaluated for specified ship speeds noRpmSpeed Propeller RPMs are not evaluated for ship speeds 214 DRDC Atlantic TM 2011 307
23. added mass and damping for a box with length of 4 m width of 4 m and fluid height of 2 m The input encounter frequencies should be selected such that the variation of added mass and damping with encounter frequency is captured for sloshing modes that will influence the motions of the ship When selecting the range of encounter frequencies it can be useful to consider the following analytical solution for sloshing natural frequencies of a box of width Wian subject to sway motion 20 gat V9 Xslosh tanh A h fruid for n TED sees 6 N oe na 7 Wank where n is the sloshing mode number The sway sloshing added mass and damping coefficients for a box shaped tank will typically vary significantly in the vicinity of sloshing frequencies for odd numbered modes n 1 3 5 Computations suggest that 0 02 ws is a suitable value for both the minimum encounter frequency and slosh encounter frequency increment and that 4 wy is a suitable value for the maximum encounter frequency DRDC Atlantic TM 2011 307 23 10 rm Added mass damping AIK mtank Beek I iy mtenk Encounter frequency we Figure 14 Sway Sloshing Added Mass and Damping for Box with Length of 4 m Width of 4 m and Fluid Height of 2 m The main output file from SM3DRadSloshTank and optional plot files of hydrody namic coefficients can be examined to determine whether a suitable range of encounter frequencies has been used Both the
24. below Record 10 Beginning of Condition Number Frequency Limits This record and the subsequent Records 10a to 10e are optional If these Records are omitted then parameters are set to defaults begin condLimits 2 character strings 140 DRDC Atlantic TM 2011 307 Record 10a Encounter Freguencies for Longitudinal Mode Condition Number Limits This record is reguired if Record 10 has been used enFregsLongLimits enFreqsLongLimits 1 character strings array of floats enFreqsLongLimits Record tag enFreqsLongLimits Array of encounter frequencies at which matrix condition number limits are specified for longitudinal source strengths defaults 0 0 and 10 Record 10b Longitudinal Mode Condition Number Limits This record is required if Record 10 has been used condLimitsLong condLimitsLong 1 character strings array of floats condLimitsLong Record tag condLimitsLong Array of longitudinal matrix condition number limits This array must be the same length as enFreqsLongLimits in Record 10a defaults 10 and 10 Record 10c Encounter Frequencies for Lateral Mode Condition Num ber Limits This record is required if Record 10 has been used enFregsLatLimits enFreqsLatLimits 1 character strings array of floats enFreqsLatLimits Record tag enFreqsLatLimits Array of encounter frequencies at which matrix condition number limits are specified for later
25. default 45 deg Record 14f Patch Tank Surface Plot Wet Dry Option This record is optional if a plot is being specified wetDryOption wetDry 2 character strings wetDryOption Record tag wetDryOption Option for tank to be displayed Full The full patch tank is shown default Wet The trimmed wet patch tank is shown Dry The trimmed dry patch tank is shown DRDC Atlantic TM 2011 307 117 Record 14g Patch Tank Surface Plot Colour This record is optional if a plot is being specified patchSloshTankColour patchSloshTankColour 2 character strings patchSloshTankColour Record tag patchSloshTankColour Tank colour which can be one of Multi Each tank patch is assigned a colour default Red Green Yellow Grey Record 14h Patch Tank Surface Plot Show Starboard Option This record is optional if a plot is being specified showStarboardOption showStarboardOption 2 character strings showStarboardOption Record tag showStarboardOption Option for showing starboard portion of tank ShowStarboard Both sides of tank are shown default HideStarboard Only port side of tank is shown Record 14i End of Patch Tank Surface Plot Data This record is required if Record 14 has been entered end patchSurfacePlots 1 character string with 2 words Record 15 Wet Panel Tank File Name wetPanelFileName wetPanelFileName 2 character strings wetPanelFileName Rec
26. plotOutOption Option for making plots NoPlots No plots are produced ScreenFile Plots are both plotted on the screen and to a file Screen Plots are only plotted on the screen File Plots are only written to a file default Record 13 Beginning of Patch Tank Line Plot Data This record is optional begin patchLinePlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 13a to 13g giving plot parameters Record 13h must follow at the end of plot parameter data Record 13a Patch Tank Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 13b Patch Tank Line Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg DRDC Atlantic TM 2011 307 113 Record 13c Patch Tank Line Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats ImageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm Record 13d Patch Tank Line Camera Settings This record is required if a plot is
27. 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 9 401 end hullLine begin hullLine station 14 yOffsets 0 000 0 169 1 314 2 364 3 311 4 126 4 745 5 228 5 605 5 903 6 139 6 326 6 472 6 587 6 677 6 748 6 803 6 849 6 888 6 924 6 957 6 988 7 015 7 041 7 066 7 092 7 117 7 142 7 168 7 345 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 9 401 end hullLine begin hullLine 70 DRDC Atlantic TM 2011 307 station 15 yOffsets 0 000 0 5 147 5 6 628 6 6 928 6 zOffsets 0 000 0 1 935 2 4 147 4 6 359 6 end hullLine begin hullLine station 16 yOffsets 0 000 0 4 931 5 6 478 6 6 773 6 zOffsets 0 276 0 2 212 2 4 424 4 6 636 6 end hullLine begin hullLine station 17 yOffsets 0 000 0 5 322 5 6 430 6 6 680 6 zOffsets 1 106 1 3 041 3 5 253 5 7 465 9 end hullLine begin hullLine station 18 yOffsets 0 000 0 5 949 6 6 379 6 6 645 6 zOffsets 2 499 2 4 424 4 6 636 6 8 848 9 end hullLine begin hullLine station 19 DRDC Atlantic TM 2011 307 169 494 690 954 000 212 424 636 169 295 540 800 276 488 700 912 169 603 472 884 106 318 530 401 169 073 412 678 499 700 912 124 OO amp NO OO OO Q O
28. 000 5 0 1 100 1 060 0 019 0 173 0 001 0 154 0 000 5 1 1 150 1 071 0 021 0 173 0 001 0 154 0 000 5 2 1 200 1 083 0 024 0 174 0 001 0 154 0 000 5 3 1 250 1 096 0 027 0 174 0 001 0 154 0 000 5 4 1 300 1 110 0 030 0 174 0 001 0 154 0 000 5 6 1 350 1 125 0 033 0 175 0 001 0 154 0 000 5 8 1 400 1 141 0 037 0 175 0 001 0 155 0 001 5 9 1 450 1 159 0 041 0 176 0 001 0 155 0 001 6 1 156 DRDC Atlantic TM 2011 307 700 LQ GO LG GQ GQ G LG YU YU Y G KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM KM K A A KA RP RP RRP BB 700 POP amp L KM KM KM KM K K K KA RP HEHE HEHE HR EER E 179 201 224 250 279 312 347 388 433 485 544 615 697 795 913 059 242 480 798 243 901 930 427 741 133 339 638 600 948 508 194 959 778 633 515 417 334 263 202 149 101 059 021 013 044 LA HBe ND H O GO OOOOOOOOOOOOOOOOOO O O O OO OO OO OO OO OOOO OrFN o DRDC Atlantic TM 2011 307 046 051 057 064 071 080 089 100 114 129 148 163 183 207 239 281 339 422 551 763 158 022 422 507 904 885 184 597 343 214 141 097 069 051 038 029 022 018 014 011 010 008 007 006 006 o o O O O OO OOO OOO OOO OOO OO O O O O O O O O O O OO OOO OOO OOO OO O 177 177 178 179 180 181 182 183 185 186 188 193 196 200 205 211 218 228 243 264 297 346 298
29. 002 38 2 3 800 0 099 0 005 0 143 0 001 0 175 0 002 39 2 3 850 0 123 0 005 0 144 0 001 0 176 0 002 41 1 3 900 0 146 0 005 0 145 0 001 0 178 0 002 43 7 3 950 0 168 0 005 0 146 0 001 0 180 0 002 47 8 4 000 0 188 0 005 0 147 0 001 0 181 0 002 56 9 4 050 0 208 0 005 0 147 0 001 0 184 0 003 77 0 4 100 0 227 0 005 0 148 0 001 0 186 0 003 132 9 4 150 0 245 0 005 0 149 0 001 0 188 0 003 257 8 4 200 0 264 0 006 0 150 0 001 0 191 0 003 154 1 4 250 0 283 0 006 0 151 0 001 0 194 0 004 87 7 4 300 0 302 0 007 0 151 0 001 0 198 0 004 61 9 4 350 0 323 0 007 0 152 0 001 0 203 0 005 48 8 4 400 0 345 0 008 0 154 0 001 0 208 0 005 41 5 4 450 0 369 0 010 0 155 0 001 0 214 0 006 38 6 4 500 0 399 0 012 0 157 0 002 0 222 0 007 37 5 4 550 0 435 0 015 0 159 0 002 0 231 0 008 37 9 4 600 0 484 0 021 0 162 0 002 0 243 0 010 40 0 4 650 0 557 0 034 0 166 0 003 0 260 0 014 45 5 4 700 0 684 0 065 0 174 0 005 0 282 0 019 55 3 4 750 0 977 0 194 0 193 0 014 0 316 0 028 78 6 4 800 1 545 1 744 0 230 0 118 0 373 0 048 227 0 4 850 0 705 0 488 0 081 0 032 0 483 0 107 130 2 4 900 0 199 0 112 0 115 0 008 0 720 0 404 159 2 4 950 0 017 0 050 0 127 0 004 0 360 1 022 237 3 5 000 0 075 0 030 0 133 0 002 0 296 0 170 117 2 5 050 0 131 0 022 0 136 0 002 0 121 0 055 76 2 5 100 0 170 0 017 0 138 0 002 0 041 0 026 61 7 5 150 0 199 0 014 0 140 0 001 0 004 0 014 56 7 5 200 0 221 0 012 0 142 0 001 0 032 0 009 67 5 5 250 0 240 0 011 0 143 0 001 0 052 0 006 124 2 5 300 0 256 0 010 0 143 0 001 0 0
30. 007 008 010 012 016 023 036 071 211 655 530 125 057 034 024 018 GO GO GO O OOO OOO OOO OOO OOO OOO OOO OO OOO OOO OOO OOO OO O OO OTT 091 108 114 119 126 129 131 133 135 136 138 139 140 141 142 143 144 145 145 146 147 148 148 149 174 219 082 114 126 132 135 138 O OO OOO OOO OOO OO OOO OOO OOO OOO OOO OO OOO OOO OOO OO O O O 014 009 006 005 004 003 003 002 002 002 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 002 002 002 003 006 015 113 036 009 004 003 002 002 66 57 50 46 43 42 40 39 39 38 39 40 41 43 AT 52 61 74 96 154 448 347 149 118 163 307 179 101 74 60 53 52 56 69 101 187 192 116 235 133 72 54 48 46 49 e ee O d KA O KO d KM NE DO GG KO KAO KA d NP Q K E O O KA L Q KM G O Odd GO LG Qn O 153 154 NN O O O O O O O O O O O O O 0 O oO Q Q Qn O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 850 750 800 O O O OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 196 218 237 253 266 278 289 299 308 317 325 334 342 351 361 371 384 400 422 459 532 561 140 222 269 296 314 326 335 343 350 356 361 366 371 376 381 386 392 399 407
31. 169 0 000 335 2 0 250 0 962 0 001 0 170 0 000 933 2 0 300 0 964 0 001 0 170 0 000 624 6 0 350 0 967 0 001 0 170 0 000 249 6 0 400 0 969 0 002 0 170 0 000 144 0 0 450 0 972 0 002 0 170 0 000 98 3 0 500 0 975 0 003 0 170 0 000 73 6 0 550 0 979 0 004 0 170 0 000 58 5 0 600 0 983 0 005 0 170 0 000 48 4 DRDC Atlantic TM 2011 307 151 152 ND ND ND ND ND ND NN KM KM KM KM KM KM KM KM N KM K K A PI KA KA HEHE RPP K KX KA KA KA KA HR KA KAK O O O 650 700 750 350 700 750 800 850 POP L G KM KM KM KM K K KX EER KX PRP YP HE HE HEHE HEHE HR HHA HER HEHE H O 988 993 999 005 012 019 027 036 045 055 066 078 091 105 120 136 154 174 196 219 245 274 306 342 382 427 479 538 607 689 786 904 049 231 466 781 221 870 879 332 730 956 317 635 600 KA KA Oor N PP ND KK OOOOOOOOOOOOOOOOOOOOOOOOO OO OO OOOOOOOO 005 006 007 009 010 011 013 015 017 019 021 024 027 030 033 037 041 046 051 057 064 071 080 090 101 114 130 149 164 184 208 240 282 341 425 553 766 160 018 376 254 957 937 205 608 N OO O O O OOO OOO OO OOO OOO OOO OO OOO OOO OOO OO OOO O O O O O 170 171 171 171 171 171 172 172 172 173 173 173 174 174 175 175 176 176 177 178 179 180 181 182 183 185 186 188 193 196
32. 171 0 192 0 075 0 018 0 195 0 197 1114 8 2 600 0 164 0 171 0 075 0 016 0 191 0 185 1459 5 2 700 0 171 0 155 0 075 0 015 0 188 0 171 849 5 2 800 0 171 0 142 0 075 0 014 0 184 0 151 1231 1 100 DRDC Atlantic TM 2011 307 700 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 A A S PP LG G L GO GQ G G K O o o o Infinite Encounter have been removed due to high condition numbers O O O OO OOOOOOOOOOOOOOOOOOOOO 170 211 182 183 187 189 190 189 207 208 221 236 234 233 233 235 244 242 242 247 250 249 247 251 255 295 G OCO OOO CO C C9 CO C9 O O CO O O GO OCO COO OCO C O 129 099 102 099 090 082 074 062 063 049 035 020 025 023 020 012 017 016 013 006 017 015 012 007 012 000 075 076 075 076 076 076 076 076 077 076 082 066 070 071 071 072 073 073 074 074 074 075 075 076 077 084 O O O OOO OO OOO OOO OOO OOO O OO OO O O O C9 C9 G O C C9 C9 C9 CG9 CG9 CC C9 CG9 C9 C9 C9 C 013 011 011 011 011 010 010 009 009 009 013 002 003 003 002 001 001 001 001 001 000 000 001 001 001 000 O O O OO OOOOOOOOOOOOOOOOOOOOO 190 189 191 197 198 199 203 205 209 217 228 234 237 239 241 242 245 247 250 254 257 256 256 257 258 305 Frequency Condition numbers longitudinal and lateral 2 AB E BE ww w ND N 100 200
33. 17a to 17f giving plot parameters Record 17g must follow at the end of plot parameter data Record 17a Retardation Plot Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 17b Retardation Plot Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 17c Retardation Plot Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 200 mm 146 DRDC Atlantic TM 2011 307 Record 17d Option for Longitudinal and or Lateral Modes This record is optional if a plot is being specified longLatOption longLatOption 2 character strings longLatOption Record tag longLatOption Option for plotting modes LongLat Longitudinal and lateral and modes will be shown with longitudinal modes in the left column and lateral modes in the right column default Long Longitudinal modes will be shown in a single column Lat Lateral modes will be shown in a single column Record 17e Column Options for Longitudin
34. 2 4 propCo 0 000 0 000 thrustCoQuadratic 0 4 0 2 0 16 propControlParam 300 300 3 0 8 50 0 0 1 DRDC Atlantic TM 2011 307 221 end fixedPitchPropeller end propellers begin rudderPropCo rudderPropCo Rudder PortPropeller 0 5 rudderPropCo Rudder StarboardPropeller 0 5 end rudderPropCo begin aziPropellers end aziPropellers begin uTubeTanks end uTubeTanks begin sloshTanks end sloshTanks plotOutOption NoPlots rpmSpeedOption rpmSpeed paramRpmSpeed 1 300 0 2 300 keysPropRpm All speedsKnotsRpm 5 10 15 20 25 30 aziRpmSpeedOption noAziRpmSpeed end SM3DBuildShip3 222 DRDC Atlantic TM 2011 307 E 3 Sample Output File for SM3DBuildShip3 Program SM3DBuildShip3 ShipMo3D 3 0 Version 3 0 release 5 October 2011 Time November 09 11 8 19 54 AM Run label Generic frigate ECHO OF USER INPUT Input radiation and diffraction database file name genFrigRadDifDB bin Label Generic frigate Created November 08 11 4 41 41 PM Version ShipMo3D 3 0 Version 3 0 release 5 October 2011 Class ShipMo3D RadDif HullRadDifDB Output ship database file name genFrigShipForMotionDB bin Dry panel hull option DryPanel Input hull dry panel file name genFrigDryPanelHull bin Label Generic frigate Created November 08 11 4 40 16 PM Version ShipMo3D 3 0 Version 3 0 release 5 October 2011 Class ShipMo3D HullGeom DryPanelHull Ship Length Data Length between perpendiculars 120 000 m Station of aft
35. 27f giving plot parameters Record 27g must follow at the end of plot parameter data Record 27a Retardation Plot Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 27b Retardation Plot Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 27c Retardation Plot Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 200 mm 212 DRDC Atlantic TM 2011 307 Record 27d Option for Longitudinal and or Lateral Modes This record is optional if a plot is being specified longLatOption longLatOption 2 character strings longLatOption Record tag longLatOption Option for plotting modes LongLat Longitudinal and lateral and modes will be shown with longitudinal modes in the left column and lateral modes in the right column default Long Longitudinal modes will be shown in a single column Lat Lateral modes will be shown in a single column Record 27e Column Options for Longitudinal Modes
36. 4 6 359 6 end hullLine begin hullLine station 10 yOffsets 0 000 0 6 262 6 7 048 7 7 241 7 zOffsets 0 000 0 1 935 2 4 147 4 6 359 6 end hullLine DRDC Atlantic TM 2011 307 169 565 595 984 000 212 424 636 169 033 870 145 000 212 424 636 169 341 021 239 000 212 424 636 169 475 072 265 000 212 424 636 D KO Jd OH D E KM Od O O LA G PNDONOU H OO KO Jd O LA 428 772 661 017 276 488 700 912 428 222 913 175 276 488 700 912 428 511 051 265 276 488 700 912 428 635 096 290 276 488 700 912 NPNON O Q ND N PNONN OND NPNON DON d PNONN OND 646 948 721 050 553 765 977 189 687 376 204 553 765 977 189 687 644 080 553 765 977 189 687 758 314 553 765 977 189 SN O1 dd DW N O1 OO on W N O1 OO on W SN 0 dd DW 555 098 776 082 829 041 253 465 813 503 987 231 829 041 253 465 915 749 108 316 829 041 253 465 947 853 144 338 829 041 253 465 O Q GQ KX AAN O Qn L KA d d O Qn L KA d d O PB O KA d OO A 188 228 826 411 106 318 530 10 230 587 607 020 478 106 318 530 954 792 831 135 521 106 318 530 677 963 926 169 507 106 318 530 401 O 658 339
37. 5 600 0 007 0 000 1 549 0 006 0 997 0 038 746 7 5 700 0 007 0 000 1 557 0 022 1 011 0 049 607 8 5 800 0 007 0 000 1 564 0 024 1 037 0 067 551 8 5 900 0 007 0 000 1 576 0 028 1 057 0 085 548 8 6 000 0 007 0 000 1 589 0 030 1 097 0 078 689 9 Infinite 0 008 0 000 1 690 0 000 1 284 0 000 Lateral modes Encounter Sway Roll Yaw Condition frequency Added Damping Added Damping Added Damping number rad s mass mass mass 0 000 0 666 0 000 0 112 0 000 0 617 0 000 0 100 0 669 0 000 0 112 0 000 0 618 0 000 12 6 0 200 0 679 0 000 0 113 0 000 0 624 0 000 12 7 0 300 0 698 0 002 0 114 0 000 0 634 0 000 12 8 0 400 0 731 0 010 0 115 0 000 0 651 0 001 13 0 0 500 0 776 0 035 0 118 0 001 0 678 0 004 13 4 0 600 0 825 0 091 0 122 0 004 0 719 0 018 13 8 0 700 0 854 0 179 0 125 0 009 0 771 0 059 14 4 0 800 0 844 0 282 0 125 0 016 0 809 0 138 15 1 0 900 0 797 0 376 0 123 0 021 0 803 0 234 16 2 1 000 0 723 0 450 0 121 0 027 0 766 0 313 17 8 1 100 0 634 0 495 0 117 0 033 0 715 0 381 20 7 1 200 0 547 0 512 0 111 0 036 0 644 0 432 24 8 1 300 0 467 0 509 0 106 0 038 0 570 0 458 30 2 1 400 0 398 0 490 0 099 0 039 0 496 0 467 39 0 1 500 0 339 0 456 0 093 0 038 0 423 0 440 69 0 1 600 0 295 0 426 0 088 0 036 0 368 0 424 79 4 1 700 0 260 0 394 0 085 0 034 0 323 0 400 91 0 1 800 0 233 0 362 0 082 0 031 0 287 0 373 102 6 1 900 0 213 0 331 0 080 0 029 0 259 0 344 113 5 2 000 0 198 0 302 0 078 0 027 0 238 0 317 121 4 2 400 0 175 0 209 0 076 0 019 0 191 0 227 1113 9 2 500 0
38. P is the surge force and F379 is the sway force acting on the ship The influence of the hull on the incident flow velocity Voziprop is modelled using a wake fraction Waziprop Which is applied to flow along the ship longitudinal axis and a flow straightening coefficient Yaziprop Which is applied to flow along the ship transverse axis Figures 19 and 20 show representative thrust and normal force coefficients for an azimuthing propeller The data in these figures are based primarily on experimental data presented by Islam et al 26 9 7 U tube Tanks and Sloshing Tanks ShipMo3D Version 3 introduces capabilities for modelling U tube tanks and sloshing tanks The treatment of sloshing tanks is described in Sections 7 and 8 The modelling of U tube tanks within ShipMo3D is described in detail in Reference 8 Figure 21 shows an aft view of a U tube tank including the fluid displacement angle 7 which is introduced as an additional degree of freedom when solving ship motions Figure 22 shows ShipMo3D input dimensions for a U tube tank If a ship includes a U tube tank or sloshing tank then the tank fluid mass should be included when specifying location of the ship centre of gravity The influence of a tank on effective metacentric height does not need to be considered when specifying the metacentric height correction for a ship if the tank is explicitly described using input for a U tube tank or sloshing tank 9 8 Computation of Ship Propelle
39. Parameters for computing hydrodynamic coefficients input Green function transition frequency 1 500 rad s Limit on U enFreq 1000000 0 R threshold for exact integration 20 0 R1 threshold for exact integration 20 0 Source panel Gauss option SourceGauss Field panel Galerkin option Galerkin Order for Gauss quadrature Encounter frequency range Minimum 0 100 rad s Maximum 6 000 rad s DRDC Atlantic TM 2011 307 sp 97 Increment 0 100 rad s User input limits on matrix condition numbers Matrix condition number limits for longitudinal motions Encounter frequency rad s Condition number limit 0 000 3000 0 6 000 3000 0 Matrix condition number limits for lateral motions Encounter frequency rad s Condition number limit 0 000 3000 0 6 000 3000 0 Speed range Minimum S 0 000 knots Maximum 40 000 knots Increment 5 000 knots Sea direction range Minimum 0 000 deg Maximum 180 000 deg Increment 15 000 deg Incident wave frequency range Minimum 0 100 rad s Maximum 2 000 rad s Increment 0 100 rad s Wave diffraction computation option Diffrac Froude number for output forward speed radiation coefficients 0 2 Plot option NoPlots eek COMPUTED HYDRODYNAMIC COEFFICIENTS Time for computing coefficients 1313 s Summary of hydrodynamic coefficients at zero speed Added mass non dimensionalised by modal inertia Damping non dimensionalised by modal inertia encounter frequency Ship ma
40. Record 28a Parameters for Computing Ship RPM Given Speed This record is reguired if romSpeedOption is set to rpmSpeed in Record 28 paramRpmSpeed nPropKey rpmMax dtMaxRpm tEndRpm 1 character string 3 floats paramRpmSpeed Record tag nPropKey Number of propeller keys given in Record 28b rpmMax Maximum propeller RPM dtMaxRpm Time step size s for simulation of motions A value of 0 2 s is recommended for full scale ships tEndRpm End time for simulation of motions to determine final ship speed A value of 300 s is recommended for full scale ships Record 28b Propeller Keys for Computing Ship RPM Given Speed This record is required if rpmSpeedOption is set to rpmSpeed in Record 28 keysPropRpm keysPropRpm 1 character string nPropKey integers keysPropRpm Record tag keysPropRpm Keys of propellers that are rotating when determining ship speed If all propellers are running then nPropKey in Record 28a can be set to 1 and the propeller key can be set to a value of All Record 29a Ship Speeds in m s for Determining RPM One of Records 29a 29b or 29c is required if rpmSpeedOption is set to rpmSpeed in Record 28 speedsRpm speedsRpm 1 character string array of floats speedsRpm Record tag speedsRpm Array of ship speeds m s at which propeller RPM values are determined DRDC Atlantic TM 2011 307 215 Record 29b Ship Speeds in Knots for Determini
41. Record tag nxMinLimit Minimum z normal component for patch surface nxMaxLimit Maximum z normal component for patch surface nyMinLimit Minimum y normal component for patch surface nyMaxLimit Maximum y normal component for patch surface nzMinLimit Minimum z normal component for patch surface nzMaxLimit Maximum z normal component for patch surface Note The input normal ranges are intended to be broad ranges used for checking that generated panels aren t pointing in the wrong direction Patch tank normals point outward from the tank DRDC Atlantic TM 2011 307 125 Record 5c Limit on Maximum Area for Panels on Patch This record is optional areaPanelLimit areaPanelLimit 1 character string 1 float areaPanelLimit Record tag areaPanelLimit Limit of maximum panel area on patch A default of 10 is used if this record is omitted This record can be used for areas requiring a finer mesh size than the remainder of the tank Record 5d Beginning of Tank Line Data A patch is described by repeated series of Records 5d to 5d5 representing tank lines A patch must consist of at least 2 tank lines begin tankLine 1 character string with 2 words Record 5d1 X coordinate for Tank Line Offsets Record 5d must be followed by either Record 5d1 or Record 5d2 If Record 5d1 is used then all offsets on a tank line must have the same x coordinate xOffset station 1 character string 1 float
42. Record tag plotOutOption Option for making plots NoPlots No plots are produced ScreenFile Plots are both plotted on the screen and to a file Screen Plots are only plotted on the screen File Plots are only written to a file default Record 12 Beginning of Patch Hull Line Plot Data This record is optional begin patchLinePlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 12a to 12g giving plot parameters Record 12h must follow at the end of plot parameter data Record 12a Patch Hull Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 12b Patch Hull Line Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg 50 DRDC Atlantic TM 2011 307 Record 12c Patch Hull Line Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats ImageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm Record 12d Patch Hull Line Camera Settings This record is required
43. SM3DPanelSloshTank creates a panelled representation of a sloshing tank such as a tank containing liquid cargo or a roll stabilization tank SM3DRadSlosh Tank computes sloshing forces arising from motions in the fre quency domain SM3DBuildShip creates a model of the ship that can be used for ship motion predictions in either the frequency domain or time domain 14 KEYWORDS DESCRIPTORS or IDENTIFIERS technically meaningful terms or short phrases that characterize a document and could be helpful in cataloguing the document They should be selected so that no security classification is required Identifiers such as equipment model designation trade name military project code name geographic location may also be included If possible keywords should be selected from a published thesaurus e g Thesaurus of Engineering and Scientific Terms TEST and that thesaurus identified If it not possible to select indexing terms which are Unclassified the classification of each should be indicated as with the title frequency domain maneuvering ship motions simulation time domain waves 234 DRDC Atlantic TM 2011 307
44. Sway sway yv 0 193807 Sway yaw yr 0 054978 Yaw sway nv 0 070000 Yaw yaw nr 0 032900 Nonlinear sway sway yvv 0 859271 Nonlinear sway sway yvr 0 180046 Nonlinear sway yaw yrr 0 000000 Nonlinear yaw sway nvr2 0 000000 Nonlinear yaw yaw nrr 0 060000 Nonlinear yaw yaw nrv2 0 200000 224 DRDC Atlantic TM 2011 307 Lift surfaces input Input for bilge keel pair dimensions given for port bilge keel Label Bilge keel Key BilgeKeel Station yRoot ZB1Root span dihedral angle m m m deg 6 000 5 140 2 490 0 600 45 000 7 000 5 557 2 210 0 600 45 000 8 000 5 800 1 940 0 600 45 000 9 000 5 830 1 660 0 600 45 000 10 000 5 970 1 660 0 600 45 000 11 000 5 910 1 660 0 600 45 000 12 000 5 800 1 660 0 600 45 000 13 000 5 580 1 660 0 600 45 000 14 000 5 230 1 660 0 600 45 000 Added mass option IncludeAddedMass input Drag coefficient method Ikeda input Wake fraction 0 000 input Roll velocity ratio 1 000 input Input for static foil pair dimensions given for port foil Label Outer shaft bracket Key OuterBracket Station 18 000 Y of root 4 000 m Z root above baseline 3 040 m Span 3 000 m Chord at root 1 000 m Chord at tip a 1 000 m Dihedral angle 105 000 deg Hydrodynamic parameters Added mass option IncludeAddedMass input Wake fraction 0 000 input Lift coefficient slope 4 176 rad default Drag coefficient for normal flow 1 170 defaul
45. U BUbc44 UU BUU44 Condition rad s number 0 000 0 1118 0 0000 0 0000 Infinite 0 0000 0 0293 0 0000 0 0000 0 100 0 1119 0 0000 0 0000 0 0000 0 0000 0 0294 0 0000 0 0000 12 6 0 200 0 1125 0 0000 0 0000 0 0000 0 0000 0 0295 0 0000 0 0000 12 7 0 300 0 1136 0 0000 0 0000 0 0000 0 0001 0 0296 0 0000 0 0000 12 8 0 400 0 1155 0 0002 0 0000 0 0000 0 0005 0 0298 0 0000 0 0000 13 0 0 500 0 1183 0 0003 0 0000 0 0000 0 0025 0 0302 0 0000 0 0000 13 4 0 600 0 1217 0 0005 0 0000 0 0000 0 0086 0 0313 0 0000 0 0000 13 8 0 700 0 1246 0 0004 0 0000 0 0000 0 0224 0 0331 0 0000 0 0000 14 4 0 800 0 1250 0 0001 0 0000 0 0000 0 0439 0 0351 0 0000 0 0000 15 1 0 900 0 1233 0 0007 0 0000 0 0000 0 0672 0 0369 0 0000 0 0000 16 2 1 000 0 1214 0 0016 0 0000 0 0000 0 0934 0 0378 0 0000 0 0000 17 8 104 DRDC Atlantic TM 2011 307 Q O1 O1 O1 O1 O1 O1 O1 O1 O1 amp A RP RR LU G G L G G L QM KM M KM MM M G A K K M KK ER ER E o 100 200 300 400 500 600 700 800 900 000 400 500 600 700 800 900 000 100 200 300 400 500 600 700 000 400 700 800 900 000 100 200 300 400 500 600 700 800 900 000 Infinite 0000000000000 00000000000000000000000000oo 1172 1113 1055 0992 0929 0883 0846 0817 0795 0779 0757 0754 0750 0750 0747 0751 0758 0752 0757 0758 0758 0761 0759 0767 0758 0820 0660 0701 0713 0709 0720 0731 0734 0740 0743 0740
46. a minimum of 200 panels be used to model the wetted port side of a sloshing tank 20 DRDC Atlantic TM 2011 307 lt Wtank gt Zbl y Y Ship baseline Figure 12 Dimensions of Sloshing Tank with Rectangular Cross Section DRDC Atlantic TM 2011 307 21 Top view Liank Aft view K Wtank gt lt Wmiddle gt R fluid Figure 13 Sloshing Tank with a Narrow Middle 22 DRDC Atlantic TM 2011 307 8 Radiation Computations for a Sloshing Tank SM3DRadSloshTank Table 6 gives a summary of the application SM3DRadSloshTank which computes hydrodynamic forces acting on a sloshing tank due to added mass and wave radiation damping Computations are performed in the frequency domain however results can be transformed to the time domain for subsequent computations The approach used for computing sloshing hydrodynamic forces is described in detail in Reference 9 Table 6 SM3DRadSlosh Tank Summary Purpose Creates a database of added mass and radiation damping forces for a sloshing tank Run time Approximately 1 hour Default input file radSloshTank3 inp Default output file radSloshTank3 out Sample files and file format Annex D Other required input Wet panelled sloshing tank created by SM3DPanelSloshTank SM3DRadSloshTank computes sloshing tank added mass and radiation damping for a range of encounter frequencies specified by user input Figure 14 shows computed
47. above default 45 deg Record 13f Patch Hull Surface Plot Wet Dry Option This record is optional if a plot is being specified wetDryOption wetDry 2 character strings wetDryOption Record tag wetDryOption Option for hull to be displayed Full The full patch hull is shown default Wet The trimmed wet patch hull is shown Dry The trimmed dry patch hull is shown 54 DRDC Atlantic TM 2011 307 Record 13g Patch Hull Surface Plot Colour This record is optional if a plot is being specified patchHullColour patchHullColour 2 character strings patchHullColour Record tag patchHullColour Hull colour which can be one of Multi Each hull patch is assigned a colour default Red Green Yellow Grey Record 13h Patch Hull Surface Plot Show Starboard Option This record is optional if a plot is being specified showStarboardOption showStarboardOption 2 character strings showStarboardOption Record tag showStarboardOption Option for showing starboard portion of hull ShowStarboard Both sides of hull are shown default HideStarboard Only port side of hull is shown Record 13i End of Patch Hull Surface Plot Data This record is required if Record 13 has been entered end patchSurfacePlots 1 character string with 2 words Record 14 Wet Panel Hull File Name wetPanelFileName wetPanelFileName 2 character strings wetPanelFileName Record tag wetPa
48. being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above cam ViewAngleDeg Camera view angle deg Record 13e Patch Tank Line Lighting Settings This record is optional if a plot is being specified lighting ambientLightIntensity directLightIntensity directLightHorAngleDeg directLight Vert AngleDeg 1 character string 3 floats lighting Record tag ambientLightIntensity Ambient light intensity default 0 5 direct LightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above default 45 deg 114 DRDC Atlantic TM 2011 307 Record 13f Patch Tank Line Plot Show Starboard Option This record is optional if a plot is being specified showStarboardOption showStarboardOption 2 character strings showStarboardOption Record tag showStarboardOption Option for showing starboard portion of tank ShowStarboard Both sides of tank are shown def
49. bows that require smaller panels than the remainder of the hull surface 5 2 Control of Panelling of the Hull The main input file for SM3DPanelHull controls panelling of the hull described by the patch hull file SM3DPanelHull panels the wet hull and optionally panels the dry hull Figure 10 shows the ship vertical coordinates When giving the input load condition the user can provide one of the following sets of input data e draft of baseline at midships draftBlMid and trim of the baseline by the stern trimBIStern e displacement of the ship dispTonnesInput and the longitudinal distance from the fore perpendicular to the the centre of gravity distanceFPCGInput If the displacement and LCG are provided as input then an iterative procedure is used to determine the combination of draft and trim that produces a wet panelled hull with the correct displacement and LCG Midships KG draftBIMid oe L trimBlStern a Figure 10 Ship Vertical Coordinates View from Starboard SM3DPanelHull fits smooth B spline surfaces 19 to hull patches described by input hull lines If difficulties are encountered with a fitted surface e g a normal vector has unexpected direction or a y coordinate is less than zero then these can often be DRDC Atlantic TM 2011 307 15 resolved by dividing the patch in the vicinity of a hull line where the difficulties are encountered The panel area limit areaPanelLimit is one of the mo
50. can be set to upper the maximum frequency used for sloshing computations Like SM3DRadDif SM3DRadSloshTank can remove irregular frequencies caused by ill conditioned solutions for sloshing velocity potentials however work to date sug gests that irregular frequencies will typically not occur when solving sloshing velocity potentials Input for SM3DRadSloshTank includes the delay time increment AT and delay time maximum Tmar for sloshing retardation functions which are used for ship motion computations in the frequency domain Recommended values are Ar 0 25 ws es and Tmar 120 w3 SM3DRadSloshTank includes an option for correcting slosh ing retardation functions to account for the finite maximum delay time Taz It is recommended that this option be used with care being taken to specify a sufficiently large number of Tmar to capture the essential behaviour of the retardation function The location of a sloshing tank on a ship is not specified as input for SM3DPanel SloshTank or SM3DRadSloshTank Instead the tank location is specified as input to SM3DBuildShip This approach allows the tank location on the ship to be changed without re running SM3DPanelSloshTank or SM3DRadSloshTank DRDC Atlantic TM 2011 307 25 9 Building of Ship Model SM3DBuildShip Table 7 gives a summary of application SM3DBuildShip which creates a database of all relevant ship properties used for computation of ship motions Figure 15 shows a sample view
51. deltaNvr2 deltaNrr deltaNrv2 1 character strings 10 floats deltaManCos deltaYv delta Yr deltaNv deltaNr deltaY vv delta Y YT delta Yrr deltaNvr2 deltaNrr deltaNrv2 Note Record tag Increment to sway sway maneuvering force coefficient Y Increment to sway yaw maneuvering force coefficient Y Increment to yaw sway maneuvering force coefficient N Increment to sway sway maneuvering force coefficient N7 Increment to nonlinear sway sway maneuvering force coefficient Y Increment to nonlinear sway sway maneuvering force coefficient acre Increment to nonlinear sway yaw maneuvering force coefficient Y mi Increment to nonlinear yaw sway maneuvering force coefficient vr Increment to nonlinear yaw yaw maneuvering force coefficient N riel Increment to nonlinear yaw yaw maneuvering force coefficient py If this record is omitted then all of the above values are set to 0 0 Record 15c End of Hull Maneuvering Force Data end hullManeuver 1 character string with 2 words Record 16 Beginning of Lift Surface Data begin liftSurfaces 1 character string with 2 words 172 DRDC Atlantic TM 2011 307 Record 16a Beginning of Bilge Keel Data Records 16a to 16a14 are optional and can be repeated for each bilge keel or pair of bilge keels begin bilgeKeel 1 character string with 2 words Record 16a1 Pair Option This recor
52. dry 496 port side of hull DRDC Atlantic TM 2011 307 Patch label Number of panels Total panel area Average panel area Minimum panel area Maximum panel area Outer transom dry 12 port side of hull 5 240685 m2 0 436724 m2 0 089847 m2 0 893025 m2 Normal ranges minimum and maximum Actual nx 1 000 1 000 ny 0 000 0 000 nz 0 000 0 000 Patch label Number of panels Total panel area Average panel area Minimum panel area Maximum panel area User input limits 1 000 0 900 0 100 0 100 0 100 0 100 Outer transom dry 12 port side of hull 3 042213 m2 0 253518 m2 0 146293 m2 0 370328 m2 Normal ranges minimum and maximum Actual nx 1 000 1 000 ny 0 000 0 000 nz 0 000 0 000 Patch label Number of panels Total panel area Average panel area Minimum panel area Maximum panel area User input limits 1 000 0 900 0 100 0 100 0 100 0 100 Inner transom dry 110 port side of hull 21 812994 m2 0 198300 m2 0 198300 m2 0 198300 m2 Normal ranges minimum and maximum Actual nx 1 000 1 000 ny 0 000 0 000 nz 0 000 0 000 Patch label Number of panels Total panel area Average panel area Minimum panel area User input limits 1 000 0 900 0 100 0 100 0 100 0 100 Deck dry 585 port side of hull 833 194810 m2 1 424265 m2 0 092502 m2 DRDC Atlantic TM 2011 307 Maximum panel area 1 626489 m2 Normal ranges minimum and ma
53. give non dimensional coefficients with magnitude relative to the ship inertia force amplitude during sinusoidal motion At the highest encounter frequency added mass should approach its infinite frequency value and damping should approach zero For naval frigates an encounter frequency range of 0 1 0 2 6 0 rad s is suitable Froude scaling can be applied to determine suitable encounter frequency ranges for DRDC Atlantic TM 2011 307 17 Heave added mass A33 A Heave damping B33 we A Heave added mass and damping Encounter frequency w rad s Figure 11 Heave Added Mass and Damping for Generic Frigate ships of other sizes Like most hydrodynamic panel codes SM3DRadDif will have irregular frequencies associated with each wet panel hull An irregular frequency is a frequency at which the solution of hull source strengths and hull associated velocity potentials gives unreliable results To better understand irregular frequencies note that source strengths on the hull are solved by satisfying the following Di to 12 4 where D is the influence matrix giving hull normal velocity from source strengths a is the vector of source strengths to be solved and 0 On is the vector of known normal velocities on the hull surface At irregular frequencies the solution of source strengths is highly sensitive to variations in elements of the influence matrix D Variations in computed source strengths a
54. if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above cam ViewAngleDeg Camera view angle deg Record 12e Patch Hull Line Lighting Settings This record is optional if a plot is being specified lighting ambientLightIntensity directLightIntensity directLightHorAngleDeg directLight Vert AngleDeg 1 character string 3 floats lighting Record tag ambientLightIntensity Ambient light intensity default 0 5 direct LightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above default 45 deg DRDC Atlantic TM 2011 307 51 Record 12f Patch Hull Line Plot Show Starboard Option This record is optional if a plot is being specified showStarboardOption showStarboardOption 2 character strings showStarboardOption Record tag showStarboardOption Option for showing starboard portion of hull ShowStarboard Both sides of hull ar
55. model sloshing in tanks with free surfaces Examples of such tanks are cargo tanks and flume tanks for roll stabilization SM3DPanelSloshTank builds a panelled representation of a sloshing tank SM3DRadSloshTank computes sloshing hydrodynamic forces in the frequency domain based on the approaches of Malenica et al 15 and Newman 16 with the ShipMo3D implementation described in Reference 9 Output sloshing tank data from SM3DRadSloshTank can be used as input to SM3DBuildShip when building ship models 2 DRDC Atlantic TM 2011 307 2 4 Application SM3DSeakeepSeawayFromRaos for Predicting Motions in a Seaway Using Input Response Amplitude Operators The new application SM3DSeakeepSeawayFromRaos 1 can predict motions in the frequency domain for a ship travelling in a seaway defined in earth fixed axes SM3D SeakeepSeawayFromRaos reads pre computed motion response amplitude operators RAOs which can be computed by SM3DSeakeepRandom SM3DSeakeepSeaway FromRaos runs faster than SM3DSeakeepSeaway 1 and is suitable for applications such as real time operator guidance 2 5 Prediction of Motion Sickness Incidence in the Frequency Domain When predicting ship motions in the frequency domain the applications SM3D SeakeepRandom SM3DSeakeepSeaway and SM3DSeakeepSeawayFromRaos can now predict motion sickness incidence Colwell 17 describes the approaches used for evaluating motion sickness incidence 2 6 Output of Motion Response Ampli
56. of Figure 9 Table 3 gives guidelines for patch representations of different parts of a hull Table 3 Guidelines for Ordering of Offsets and Hull Lines for Different Hull Portions Main hull surface Offsets on a hull line go from keel to port deck edge Successive hull lines go from bow to stern Deck Offsets on a hull line go from port deck edge to centreline Successive hull lines go from bow to stern Transom Offsets on a hull line go from bottom to deck edge Successive hull lines go from port edge to centreline DRDC Atlantic TM 2011 307 13 Hull line n 1 Hull line 0 Hull line 1 U N Ss E I Stern Baseline Figure 8 Profile of Patch Representing the Main Portion of Ship Hull View from Port Side t direction of successive points on a hull line direction of successive hull lines n normal pointing outward from hull Figure 9 Convention for Evaluating Hull Normal from Input Patch Data 14 DRDC Atlantic TM 2011 307 If the patch hull is going to be used to build both wet and dry panelled hulls then the patch hull should represent a closed volume If only a wet panelled hull will be built then it is not necessary to enclose the dry portion of the hull Each input patch includes an optional input parameter to limit the maximum size of panels representing the patch This parameter can be useful for portions of the hull surface with smaller curvature radii e g bulbous
57. of this document This will normally correspond to the Document Availability 11 However where further distribution beyond the audience specified in 11 is possible a wider announcement audience may be selected DRDC Atlantic TM 2011 307 233 13 ABSTRACT a brief and factual summary of the document It may also appear elsewhere in the body of the document itself It is highly desirable that the abstract of classified documents be unclassified Each paragraph of the abstract shall begin with an indication of the security classification of the information in the paragraph unless the document itself is unclassified represented as S C R or U It is not necessary to include here abstracts in both official languages unless the text is bilingual ShipMo3D is an object oriented library with associated user applications for predicting ship motions in calm water and in waves This report serves as a user manual for creating ship models using ShipMo3D Version 3 0 A companion report serves as a user manual for predicting ship motions in the time and frequency domains Version 3 of ShipMo3D introduces mod elling of sloshing tanks and U tube tanks Several ShipMo3D applications are used for creating a ship SM3DPanelHull creates a panelled represen tation of the wet and dry portions of the ship hull SM3DRadDif computes radiation and diffraction forces acting on the wet hull using a boundary ele ment method
58. output file and plot files give non dimensional coefficients with magnitude relative to the static mass inertia force amplitude during sinusoidal motion An approach similar to that developed by Malenica et al 15 is used to model viscous effects within a sloshing tank The normal flow boundary condition on the wetted tank walls is modified to include an empirical damping factor enr as follows R i an fl tank slosh a TA iwenj Va pi on S for j 1 6 8 where 5 is sloshing potential in the frequency domain for ship motion mode j nf l is the normal vector pointing into the tank fluid Via is the volume of fluid in the tank and S is the wetted interior tank surface Viscous effects are likely to be insignificant at zero and infinite frequency limits thus the empirical damping factor is modelled to be dependent on frequency as follows 2 W A A Etank We z Etank for We Wiower 9 Wiower 24 DRDC Atlantic TM 2011 307 A 2 we TE aas gt uf 10 Etank We 2 Etank tor Wupper Wupper e where rank is the peak value of the damping factor which is applicable at frequen cies ranging from wer to eee It is suggested that w pen and Wi pper be selected such that they encompass the main sloshing frequencies of the tank which can be determined by examining the variation of added mass with frequency For example Wf wer Can be set to half of the first sloshing mode frequency and wf pe
59. patchSloshTank3 1 character string with 2 words DRDC Atlantic TM 2011 307 127 C 3 Sample Input File for SM3DPanelSloshTank3 begin SM3DPanelSloshTank3 label Cube slosh tank 4 mn gt 4 m X 2 m runOption Full patchSloshTankInputOption Box boxDimensions 4 4 4 patchSloshTankDataFileName cube4mPatchSloshTank bin wetPatchSloshTankDataFileName cube4mWetPatchSloshTank bin dryPatchSloshTankDataFileName cube4mDryPatchSloshTank bin patchFitParam 40 40 0 01 3 3 wetPanelFileName cube4mWetPanelSloshTank bin dryPanelOption DryPanel dryPanelFileName cube4mDryPanelSloshTank bin fluidDensity 1000 000 heightFluid 2 000 panelParameters 0 100000 3 000 15 000 end SM3DPanelSloshTank3 128 DRDC Atlantic TM 2011 307 C 4 Sample Patch Tank Input File for SM3DPanelSloshTank3 begin patchSloshTank3 label 4 m x 4 m x 4m cube sloshing tank dimensions 4 0 4 0 4 0 RARR HH H HH HR HR RR RR RR EE EEE IR HEHE RR RR IR IR HR HR RR begin patch label Front normalRanges 0 9 1 0 0 1 0 1 0 1 1 0 begin tankLine xOffsets 2 yOffsets 0 zOffsets 0 0 4 0 end hullLine begin tankLine xOffsets 2 yOffsets 4 zOffsets 0 0 4 0 end tankLine end patch RARR IR RR RR HH HR HR RR RR RR RR EEE begin patch label Port side normalRanges 0 1 0 1 0 9 1 0 0 1 1 0 begin tankLine xOffsets 2 0 2 yOffsets 2 0 2 zOffsets 0 0 4 0 end hullLine begin tankLine xOffsets 2 0 2 0 yDffsets 2 0 2 0 zOffsets 0 0 4 0 end tankLine end patch HRH
60. perpendicular 20 000 Loading condition Water density 1025 000 kg m3 Draft of baseline at midships 4 200 m Trim of baseline by stern 0 000 m Height of CG above baseline KG 6 000 m Correction to metacentric height 0 000 m Ship gyradii Roll gyradius 4 800 m Pitch gyradius 30 000 m Yaw gyradius 30 000 m DRDC Atlantic TM 2011 307 223 Time parameters for hull retardation forces Time interval 0 100 s Maximum time 20 000 s Encounter frequency terms for integration of hull retardation functions Encounter frequency increment 0 100 rad s Maximum encounter frequency 5 000 rad s High frequency approx option RetardHighFreqApprox Viscous hull input Ship speeds for resistance knots 5 000 10 000 15 000 20 000 25 000 30 000 35 000 Ship resistance option Resistance coefficients based on Holtrop and Mennen Hull geometry for resistance calculations based on wet panel hull No bulbous bow User input hull lateral and roll eddy drag coefficients Eddy making roll damping coefficient 1 170 Lateral drag coefficient 0 000 Hull maneuvering coefficient input Hull dimensions for evaluating maneuvering coefficients Dimensions based on wet panelled hull Draft at midships 4 200 m Trim by stern 0 000 m Maximum beam 14 111 m Block coefficient 0 509 Maneuvering force elevation wrt waterline 0 000 m Hull maneuvering coefficients based on Inoue regression method Hull maneuvering coefficients
61. report e g interim progress summary annual or final Technical Memorandum 8 SPONSORING ACTIVITY the name of the department project office or laboratory sponsoring the research and development Include address Defence R amp D Canada Atlantic PO Box 1012 Dartmouth NS Canada B2Y 327 9a PROJECT OR GRANT NO If appropriate the 9b CONTRACT NO if appropriate the applicable research and development project or grant applicable number under which the number under which the document was written document was written 11ge01 10a ORIGINATOR S DOCUMENT NUMBER the 10b OTHER DOCUMENT NOs Any official document number by which the document is other numbers which may be assigned this identified by the originating activity This number must document either by the originator or by be unique the sponsor DRDC Atlantic TM 2011 307 11 DOCUMENT AVAILABILITY any limitations on further dissemination of the document other than those imposed by security classification X Unlimited distribution Defence departments and defence contractors further distribution only as approved Defence departments and Canadian defence contractors further distribution only as approved Government departments and agencies further distribution only as approved Defence departments further distribution only as approved L Other please specify 12 DOCUMENT ANNOUNCEMENT any limitation to the bibliographic announcement
62. s Increment 0 050 rad s User input limits on matrix condition numbers Matrix condition number limits for longitudinal motions Encounter frequency rad s Condition number limit 0 000 99000 0 10 000 99000 0 Matrix condition number limits for lateral motions Encounter frequency rad s Condition number limit 0 000 99000 0 150 DRDC Atlantic TM 2011 307 10 000 99000 0 Parameters for evaluation of sloshing retardation functions Time increment 0 100 s Time maximum 50 000 s Encounter frequency increment 0 050 rad s Encounter frequency maximum time 10 000 rad s Option for correction for tDelayMax TRetardMaxCorrection Option for output of retardation function tables NoUutRetard Plot option NoPlots COMPUTED HYDRODYNAMIC COEFFICIENTS Time for computing coefficients 485 s Summary of added mass and damping for a tank containing fluid Added masses include effect of static fluid Vertical origin located at tank fluid line Added mass non dimensionalised by modal inertia Damping non dimensionalised by modal inertia encounter frequency Fluid mass 32000 000 kg Roll gyradius 1 628 m Pitch gyradius 1 628 m Yaw gyradius 1 628 m Longitudinal modes Encounter Surge Pitch Condition frequency Added Damping Added Damping number rad s mass mass 0 000 0 958 0 000 0 169 0 000 0 050 0 958 0 000 0 169 0 000 142 6 0 100 0 959 0 000 0 169 0 000 161 0 0 150 0 960 0 000 0 169 0 000 205 9 0 200 0 961 0 000 0
63. the dry ship and do not include the influence of ship added mass Estimates of radii of gyration are as follows Ta 0 4 Biar 11 TRR 0 25 L 12 Trees 0 25 L 13 26 DRDC Atlantic TM 2011 307 Figure 15 Panelled Hull Appendages and Propellers of Generic Frigate from SM3DBuildShip where r44 is roll radius of gyration rss is pitch radius of gyration and Tas is yaw radius of gyration If the ship natural roll period is known but the ship roll gyradius is unknown it is recommended that SM3DBuildShip be run with several different input gyradius values to determine which value produces the correct natural roll period For time domain predictions of ship motions wave radiation forces are evaluated using retardation functions The retardation functions are determined using transforms of wave radiation forces in the frequency domain SM3DBuildShip reads input for the time interval and maximum value of retardation functions The time interval should be sufficiently fine to capture the variation of retardation functions and the maximum value should encompass the time when retardation functions approach zero For a naval frigate a time interval of 0 2 s and maximum time of 20 s provide good representation of retardation functions Suitable values for other ships can be estimated using Froude scaling as follows L Ar 0 05 14 g L Tmax 5 15 S 15 where Ar is the time interval and Tas is the maximum time for re
64. the hull cross flow drag coefficient Within ShipMo3D the hull cross flow drag coefficient is often set to zero because cross flow drag forces are instead modelled using nonlinear maneuvering coefficients If nonlinear maneuvering coefficients are not used to model cross flow drag then the cross flow drag coefficient can be set to a value of approximately 1 0 9 2 Hull Maneuvering Forces References 6 and 7 provide background information for prediction of hull maneuver ing forces The user can provide input hull maneuvering coefficients or can use values predicted based on the method of Inoue et al 21 As discussed in Reference 6 there is significant uncertainty associated with hull maneuvering coefficients and resulting 28 DRDC Atlantic TM 2011 307 hull maneuvering predictions Most notably the uncertainty in the linear yaw yaw coefficient N can lead to significant uncertainty in predicted ship turning circle char acteristics Consequently it is recommended that the best possible estimates of hull maneuvering force coefficients be provided as input If maneuvering force coefficients are unavailable but maneuvering trial data exist then one can consider modifying the yaw yaw coefficient N to obtain good agreement between observed and predicted turning circles 9 3 Ship Appendages Bilge Keels Static Foils Skegs and Rudders Ship appendages significantly influence ship motions in sway roll and yaw SM3D BuildShip currently mo
65. will lead to variations in computed velocity potentials which are evaluated using the following toy El do 5 where E is the influence matrix giving velocity potential from source strength SM3DRadDif uses lateral symmetry when solving for hydrodynamic coefficients thus longitudinal modes have one set of irregular frequencies and lateral modes have an other set of irregular frequencies When examining plots of added mass and or damp ing versus encounter frequency large local variations occur at irregular frequencies 18 DRDC Atlantic TM 2011 307 Similarly an irregular freguency will usually have a large local increase in the con dition number of matrix D from Equation 4 To prevent SM3DRadDif from us ing computations at irregular freguencies user input can include threshold matrix condition numbers indicating the presence of irregular freguencies The threshold matrix condition numbers can be determined by examining the results of an initial SM3DRadDif run The most time consuming part of running SM3DRadDif is usually the evaluation of wave diffraction forces Note that wave diffraction forces should be evaluated for all combinations of ship speed heading and wave freguency that a ship is likely to encounter For a naval frigate an input ship speed range of 0 5 10 40 knots can be used Note that the upper speed should include the influence of wave induced surge motion for a freely maneuvering ship An inpu
66. with stations in Record 16c4 Record 16c6 Vertical Coordinates of Skeg at Root This record must follow Record 16c5 zBlRoots zBlRoots 1 character string array of floats zBlRoots Record tag zBlRoots Vertical coordinate of skeg root relative to baseline Input values correspond with stations in Record 16c4 Record 16c7 Spans of Skeg at Root This record must follow Record 16c6 spans spans 1 character string array of floats spans Record tag spans Skeg spans Input values correspond with stations in Record 16c4 Record 16c8 Skeg Dihedral Angles This record must follow Record 13e dihedralsDeg dihedralsDeg 1 character string array of floats dihedralsDeg Record tag dihedralsDeg Skeg dihedral angles 0 oriented to port 90 oriented upward Skegs typically have dihedral angles of approximately 90 Input values correspond with stations in Record 16c4 182 DRDC Atlantic TM 2011 307 Record 16c9 Skeg Inclusion of Added Mass Option This record is optional addedMassOption addedMassOption 2 character strings addedMassOption Record tag addedMassOption Option for including skeg added mass IncludeAddedMass added mass is included in skeg computations default ExcludeAddedMass added mass is excluded in skeg computations This option is intended to be used only in cases when the skeg added mass is already modelled elsewhere su
67. 0 0054 0061 0059 0057 0053 0050 0047 0034 0029 0015 0028 0023 0019 0018 0018 0015 0014 0014 0012 0012 0011 0009 0008 0007 0007 0007 0006 0006 0006 0004 0004 0004 0093 0028 0005 0012 0002 0000 0000000000000 000000000000000000000o0o I o ooooo 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000000000000 00000000000000000000000000000000000000o00o 0000 Infinite o 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000000000000 0000000000000000000000000000000000000o Heave added mass and damping at forward speed Enfreg rad s 0 0 0 000 100 200 A033 UxAUpd33 U AUbc33 UU AUU33 4 4295 4 6453 4 7767 0 0000 0 0002 0 0015 0 0000 Infinite 0 0000 0 0000 DRDC Atlantic TM 2011 307 0 0000 0 0000 o00DD0000000000000000000rrrrer rRR KM KM RP KM K
68. 0 0 6508 0 0005 0 0007 0 2934 0 0007 0 6156 0 1661 0 0024 13 0 0 500 0 6778 0 0017 0 0020 0 1935 0 0065 0 6224 0 1727 0 0071 13 4 0 600 0 7193 0 0050 0 0044 0 1390 0 0370 0 6315 0 1807 0 0161 13 8 0 700 0 7714 0 0107 0 0078 0 1043 0 1437 0 6376 0 1883 0 0291 14 4 0 800 0 8090 0 0161 0 0115 0 0789 0 3870 0 6325 0 1936 0 0421 15 1 0 900 0 8032 0 0174 0 0152 0 0595 0 7370 0 6206 0 1963 0 0497 16 2 1 000 0 7662 0 0177 0 0191 0 0451 1 0961 0 6140 0 1951 0 0515 17 8 1 100 0 7153 0 0190 0 0224 0 0345 1 4672 0 6006 0 1870 0 0496 20 7 1 200 0 6440 0 0171 0 0245 0 0269 1 8131 0 5850 0 1727 0 0444 24 8 1 300 0 5702 0 0160 0 0252 0 0215 2 0813 0 5755 0 1542 0 0388 30 2 1 400 0 4964 0 0141 0 0245 0 0175 2 2881 0 5621 0 1340 0 0329 39 0 1 500 0 4231 0 0094 0 0218 0 0144 2 3111 0 5293 0 1140 0 0268 69 0 1 600 0 3680 0 0076 0 0198 0 0123 2 3721 0 5230 0 0978 0 0222 79 4 1 700 0 3229 0 0061 0 0176 0 0107 2 3774 0 5195 0 0844 0 0182 91 0 1 800 0 2869 0 0046 0 0154 0 0094 2 3456 0 5170 0 0740 0 0149 102 6 1 900 0 2592 0 0035 0 0134 0 0084 2 2883 0 5161 0 0660 0 0122 113 5 2 000 0 2381 0 0024 0 0116 0 0076 2 2154 0 5166 0 0602 0 0100 121 4 2 400 0 1905 0 0016 0 0065 0 0052 1 9024 0 5323 0 0491 0 0026 1113 9 2 500 0 1951 0 0000 0 0057 0 0049 1 7256 0 5180 0 0485 0 0024 1114 8 2 600 0 1915 0 0001 0 0048 0 0046 1 6819 0 5272 0 0456 0 0026 1459 5 2 700 0 1883 0 0004 0 0041 0 0043 1 6176 0 5319 0 0486 0 0016 849 5 2 800 0 1840 0 0011 0 00
69. 0 0000 0 0000 0 9770 0 2300 0 0000 0 0000 2361 1 3 600 1 5338 0 0035 0 0000 0 0000 0 9553 0 2373 0 0000 0 0000 2351 3 3 700 1 5461 0 0039 0 0000 0 0000 0 9743 0 2279 0 0000 0 0000 2435 8 4 000 1 5889 0 0063 0 0000 0 0000 0 8237 0 1805 0 0000 0 0000 2165 1 4 400 1 4010 0 0005 0 0000 0 0000 0 3970 0 2353 0 0000 0 0000 1852 8 4 700 1 5022 0 0003 0 0000 0 0000 0 3233 0 2530 0 0000 0 0000 1852 5 4 800 1 5071 0 0003 0 0000 0 0000 0 3290 0 2606 0 0000 0 0000 2368 9 4 900 1 5142 0 0011 0 0000 0 0000 0 1530 0 2379 0 0000 0 0000 1955 0 5 000 1 5253 0 0005 0 0000 0 0000 0 1462 0 2435 0 0000 0 0000 1617 1 5 100 1 5313 0 0000 0 0000 0 0000 0 0997 0 2285 0 0000 0 0000 1198 2 5 200 1 5374 0 0027 0 0000 0 0000 0 0459 0 2268 0 0000 0 0000 1121 9 5 300 1 5448 0 0060 0 0000 0 0000 0 0004 0 2888 0 0000 0 0000 916 4 5 400 1 5495 0 0066 0 0000 0 0000 0 0373 0 4484 0 0000 0 0000 704 0 5 500 1 5461 0 0017 0 0000 0 0000 0 0027 0 6094 0 0000 0 0000 721 6 5 600 1 5486 0 0104 0 0000 0 0000 0 1222 0 7187 0 0000 0 0000 746 7 5 700 1 5572 0 0113 0 0000 0 0000 0 4443 0 3704 0 0000 0 0000 607 8 5 800 1 5637 0 0174 0 0000 0 0000 0 4925 0 3212 0 0000 0 0000 551 8 5 900 1 5757 0 0175 0 0000 0 0000 0 5841 0 2443 0 0000 0 0000 548 8 6 000 1 5887 0 0180 0 0000 0 0000 0 6203 0 1330 0 0000 0 0000 689 9 Infinite 1 6895 0 0000 0 0000 0 0000 0 0000 0 1751 0 0000 0 0000 Roll added mass and damping at forward speed Enfreq A044 UxAUpd44 U AUbc44 UU AUU44 BO44 U BUpd44
70. 0 150 82 682 73224 432 7 725 15 000 0 225 124 664 171874 978 10 300 20 000 0 300 169 569 356068 721 12 875 25 000 0 375 216 498 644163 112 15 450 30 000 0 450 266 207 1080868 484 16 965 32 942 0 495 300 000 1511776 640 Computation time 13 s DRDC Atlantic TM 2011 307 231 This page intentionally left blank 232 DRDC Atlantic TM 2011 307 DOCUMENT CONTROL DATA Security classification of title abstract and indexing annotation must be entered when document is classified 1 ORIGINATOR the name and address of the 2 SECURITY CLASSIFICATION organization preparing the document overall security classification of the Defence R amp D Canada Atlantic document including special warning terms if applicable UNCLASSIFIED 3 TITLE The complete document title as indicated on the title page Its classification should be indicated by the appropriate abbreviation S C R or U in parentheses after the title ShipMo3D Version 3 0 User Manual for Creating Ship Models 4 AUTHORS Last name first name middle initial If military show rank e g Doe Maj John E McTaggart Kevin A 5 DATE OF PUBLICATION month and year of 6a NO OF PAGES 6b NO OF REFS to publication of document total including tal cited in document Annexes Appendices December 2011 ei 27 246 7 DESCRIPTIVE NOTES The category of the document e g technical report technical note or memorandum If appropriate enter the type of
71. 0 2 600 2 800 2 900 3 000 3 100 3 200 3 300 3 400 3 600 3 700 4 000 4 400 4 700 4 800 4 900 5 100 5 200 5 300 5 400 5 500 5 600 5 700 5 900 6 000 Ship speeds m s 0 000 2 575 5 150 7 725 10 300 12 875 15 450 20 600 Relative sea headings deg 0 000 15 000 30 000 45 000 60 000 75 000 90 000 120 000 135 000 150 000 165 000 180 000 Relative wave frequencies rad s 0 100 0 200 0 300 0 400 0 500 0 600 0 700 0 900 1 000 1 100 1 200 1 300 1 400 1 500 1 700 1 800 1 900 2 000 SHIP RESISTANCE BASED ON HOLTROP 1984 Ship resistance non dimensionalized by 0 5 rho Aw U 2 rho water density 1025 000 kg m3 Aw hull wetted surface area 1753 438 m2 U ship forward speed m s Speed Speed Froude Resistance Non dimen m s knots number N resistance 2 575 5 000 0 075 20047 803 0 003365 5 150 10 000 0 150 73224 432 0 003072 7 725 15 000 0 225 171874 978 0 003205 10 300 20 000 0 300 356068 721 0 003735 DRDC Atlantic TM 2011 307 aonwn rr 18 105 800 600 700 500 000 800 025 000 800 600 229 12 875 25 000 0 375 644163 112 0 004324 15 450 30 000 0 450 1080868 484 0 005039 18 025 35 000 0 525 1871341 377 0 006409 xx OUTPUT OF BUILT SHIP PROPERTIES Load Condition Properties for Trimmed Ship Summary of hydrostatic properties Number of panels on port side 613 Total number of panels 1226 Length between perpendiculars 120 000 m Draft of baseline at midships 4 200 m Tri
72. 0 O0 OO O0 WOW OO WO N WN N N N N N NN NN N O1 o O O O OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 322 341 357 367 374 379 384 388 391 395 398 401 405 408 413 418 426 438 453 408 383 389 394 398 402 405 407 410 412 415 417 420 423 428 434 443 445 418 411 412 414 416 418 420 422 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO DRDC Atlantic TM 2011 307 084 038 025 020 017 015 013 012 012 011 010 010 010 009 009 009 010 017 044 079 044 027 020 017 014 012 011 010 009 008 008 007 007 007 008 014 036 042 028 020 016 013 011 010 009 O GO GO O OOO OOO OOO OOO OOO OOO OOO OO OOO OOO OOO OOO O O O OO O 149 149 149 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 003 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 002 002 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 001 59 55 58 48 37 33 39 46 49 75 65 57 61 47 45 41 36 39 47 50 42 39 33 30 27 28 33 42 47 40 41 34 31 29 31 33 34 30 26 26 24 22 23 26 31 w O JG Q O KM QO Q O O KM KM Q QO GQ O O1 K Q O1 Gd H KM GO KM O G O
73. 00 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 E OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO UU BUU33 0 0000 0 0000 0 0000 Condition number 12 12 12 13 13 13 14 15 16 17 20 24 30 39 69 79 91 102 113 121 1113 1114 1459 849 1231 983 2549 1944 1242 1191 1277 1245 1228 1210 2495 1555 1428 1109 1892 1584 1226 1108 889 941 775 581 563 606 582 576 O N L Q G Q 0 GW MA PRONA OO E M M L QQ QM gt M M 01 01 E 01 OO E N OoN NH E Condition number 108 0 300 4 5426 0 0042 0 0000 0 0000 1 7319 0 1037 0 0000 0 0000 10 8 0 400 3 9721 0 0071 0 0000 0 0000 3 1462 0 1031 0 0000 0 0000 11 5 0 500 3 2385 0 0076 0 0000 0 0000 4 4493 0 1060 0 0000 0 0000 12 8 0 600 2 5199 0 0056 0 0000 0 0000 5 2848 0 1068 0 0000 0 0000 14 5 0 700 1 9867 0 0051 0 0000 0 0000 5 5128 0 1010 0 0000 0 0000 L752 0 800 1 6919 0 0071 0 0000 0 0000 5 4230 0 0974 0 0000 0 0000 22 0 0 900 1 5242 0 0080 0 0000 0 0000 5 3261 0 0985 0 0000 0 0000 28 3 1 000 1 3967 0 0082 0 0000 0 0000 5 2078 0 0954 0 0000 0 0000 38 4 1 100 1 3067 0 0101 0
74. 0000 0 0000 5 0038 0 0938 0 0000 0 0000 50 5 1 200 1 2496 0 0111 0 0000 0 0000 4 7624 0 0964 0 0000 0 0000 65 3 1 300 1 2138 0 0122 0 0000 0 0000 4 4886 0 0989 0 0000 0 0000 83 5 1 400 1 1959 0 0128 0 0000 0 0000 4 1973 0 1043 0 0000 0 0000 105 3 1 500 1 1807 0 0128 0 0000 0 0000 3 9727 0 1255 0 0000 0 0000 129 6 1 600 1 1817 0 0129 0 0000 0 0000 3 6822 0 1324 0 0000 0 0000 161 9 1 700 1 1859 0 0129 0 0000 0 0000 3 3876 0 1404 0 0000 0 0000 224 6 1 800 1 1507 0 0123 0 0000 0 0000 2 9500 0 1522 0 0000 0 0000 1011 2 1 900 1 2979 0 0145 0 0000 0 0000 2 9801 0 1386 0 0000 0 0000 2066 2 2 000 1 2723 0 0134 0 0000 0 0000 2 6762 0 1573 0 0000 0 0000 1445 2 2 400 1 3410 0 0093 0 0000 0 0000 1 9496 0 2021 0 0000 0 0000 1741 8 2 500 1 3562 0 0085 0 0000 0 0000 1 7865 0 2048 0 0000 0 0000 1403 3 2 600 1 3572 0 0077 0 0000 0 0000 1 5710 0 2062 0 0000 0 0000 1586 4 2 700 1 4158 0 0071 0 0000 0 0000 1 5435 0 2038 0 0000 0 0000 2330 1 2 800 1 4129 0 0081 0 0000 0 0000 1 3599 0 2088 0 0000 0 0000 2735 3 2 900 1 4415 0 0070 0 0000 0 0000 1 2865 0 2238 0 0000 0 0000 1863 4 3 000 1 4490 0 0062 0 0000 0 0000 1 2261 0 2254 0 0000 0 0000 2364 8 3 100 1 4652 0 0050 0 0000 0 0000 1 1666 0 2280 0 0000 0 0000 2222 2 3 200 1 4723 0 0052 0 0000 0 0000 1 0774 0 2204 0 0000 0 0000 2637 9 3 300 1 4871 0 0046 0 0000 0 0000 0 9469 0 2350 0 0000 0 0000 2141 1 3 400 1 5082 0 0039 0 0000 0 0000 1 0126 0 2284 0 0000 0 0000 2390 3 3 500 1 5201 0 0044
75. 000000 m DRDC Atlantic TM 2011 307 135 From int Z centre Based on Based on Based on Rex CHE Calculat egral of x z nz 0 000000 m of volume based on integration over tank interior surface integral of z x nx 1 000000 m integral of z y ny 1 000000 m integral of 0 b z zx nz 1 000000 m CK OF CLOSURE FOR COMBINED WET AND DRY HULL x x x ed properties for checking combined mesh of wet and dry slosh tank interior Closure Closure Closure Closure Computat 136 error sum of area nx 0 000000 m2 error approx front area 0 000000 error sum of area nz 0 000000 m2 error approx top area 0 000000 ion time 2s DRDC Atlantic TM 2011 307 Annex D Files for Sloshing Tank Radiation Computations with SM3DRadSloshTank3 D 1 Format of Input Sloshing Tank Radiation File for SM3DRadSloshTank3 Record 1 Beginning Record begin SM3DRadSloshTank3 1 character string with 2 words Record 2 Run Label label label 2 character strings label Record tag label Label for run This can include spaces Record 3 Beginning of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input begin note 1 character string with 2 words Record 3a Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input noteText character string noteText Text of note Multiple lines can be en
76. 0000000000000 0000000000oo 5315 5302 5279 5303 5267 5298 5288 5292 5332 5310 5330 5326 5343 5338 5365 5357 5360 5365 5426 5105 6037 5353 5619 5513 5776 0496 0510 0516 0525 0536 0549 0566 0562 0598 0625 0647 0652 0657 0666 0671 0669 0676 0685 0694 0687 0698 0700 0700 0698 0796 0012 0004 0000 0002 0003 0003 0004 0007 0006 0006 0007 0005 0005 0005 0007 0004 0003 0001 0003 0081 0033 0009 0011 0000 0000 2549 1944 1242 1191 1277 1245 1228 1210 2495 1555 1428 1109 1892 1584 1226 1108 889 941 775 581 563 606 582 576 DONWOADOWAWRBROAONADKFRPRKFWAOWN EA 107 This page intentionally left blank 108 DRDC Atlantic TM 2011 307 Annex C Files for Panelling a Sloshing Tank with SM3DPanelSloshTank3 C 1 Format of Input File for SM3DPanelSloshTank3 Record 1 Beginning Record begin SM3DPanelSloshTank3 1 character string with 2 words Record 2 Run Title label label 2 character strings label Record tag label Title for run This can include spaces Record 3 Beginning of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input begin note 1 character string with 2 words Record 3a Note Input Records 3 to 3b can optionally be used together to give a de
77. 001 0 0000 0 0000 0 0014 0 0119 0 0000 0 0000 746 7 5 700 0 0069 0 0001 0 0000 0 0000 0 0002 0 0145 0 0000 0 0000 607 8 5 800 0 0071 0 0000 0 0000 0 0000 0 0016 0 0147 0 0000 0 0000 551 8 5 900 0 0073 0 0002 0 0000 0 0000 0 0025 0 0169 0 0000 0 0000 548 8 6 000 0 0074 0 0002 0 0000 0 0000 0 0012 0 0216 0 0000 0 0000 689 9 102 DRDC Atlantic TM 2011 307 Infinite 0 0082 0 0000 0 0000 0 0000 Sway added mass and damping at forward speed Enfreq rad s 0 100 200 300 400 500 600 700 800 900 000 100 200 300 400 500 600 700 800 900 000 400 500 600 700 800 900 000 100 200 300 400 500 600 700 000 400 700 800 900 000 100 200 300 400 500 600 700 800 900 000 O1 O1 O1 O1 O1 O1 O1 O1 O1 O1 amp S RRP BP LQ LG LQ LQ G ww LM M M M MM M G RR HE X A A HHOOOOOOOOO o 000 Infinite A022 U AUpd22 U AUbc22 UU AUU22 6660 6690 6790 6984 7306 7760 8245 8535 8435 7965 7234 6344 5472 4671 3983 3394 2949 2599 2331 2128 1976 1754 1708 1639 1715 1714 1702 2109 1820 1831 1870 1894 1903 1892 2066 2079 2214 2356 2335 2329 2330 2352 2437 2419 2421 2468 2499 2491 2474 2506 2549 2954 O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 0 0000 0 0000 0 0000 0 0002 0 0007 0 0018 0 0029 0 0030 0 0018 0 0006 0008 0030 0041 005
78. 0062 0 0000 0 0000 0 0000 0 0288 0 0182 0 0000 0 0000 2735 3 2 900 0 0060 0 0000 0 0000 0 0000 0 0276 0 0176 0 0000 0 0000 1863 4 3 000 0 0060 0 0001 0 0000 0 0000 0 0256 0 0181 0 0000 0 0000 2364 8 3 100 0 0061 0 0000 0 0000 0 0000 0 0230 0 0191 0 0000 0 0000 2222 2 3 200 0 0064 0 0001 0 0000 0 0000 0 0232 0 0181 0 0000 0 0000 2637 9 3 300 0 0062 0 0000 0 0000 0 0000 0 0239 0 0172 0 0000 0 0000 2141 1 3 400 0 0063 0 0001 0 0000 0 0000 0 0203 0 0188 0 0000 0 0000 2390 3 3 500 0 0065 0 0000 0 0000 0 0000 0 0209 0 0178 0 0000 0 0000 2361 1 3 600 0 0064 0 0001 0 0000 0 0000 0 0208 0 0171 0 0000 0 0000 2351 3 3 700 0 0066 0 0000 0 0000 0 0000 0 0189 0 0182 0 0000 0 0000 2435 8 4 000 0 0070 0 0001 0 0000 0 0000 0 0182 0 0204 0 0000 0 0000 2165 1 4 400 0 0061 0 0000 0 0000 0 0000 0 0129 0 0261 0 0000 0 0000 1852 8 4 700 0 0065 0 0000 0 0000 0 0000 0 0094 0 0215 0 0000 0 0000 1852 5 4 800 0 0066 0 0001 0 0000 0 0000 0 0079 0 0207 0 0000 0 0000 2368 9 4 900 0 0066 0 0000 0 0000 0 0000 0 0133 0 0212 0 0000 0 0000 1955 0 5 000 0 0066 0 0001 0 0000 0 0000 0 0101 0 0209 0 0000 0 0000 1617 1 5 100 0 0066 0 0001 0 0000 0 0000 0 0086 0 0205 0 0000 0 0000 1198 2 5 200 0 0066 0 0001 0 0000 0 0000 0 0070 0 0200 0 0000 0 0000 1121 9 5 300 0 0067 0 0001 0 0000 0 0000 0 0050 0 0194 0 0000 0 0000 916 4 5 400 0 0068 0 0000 0 0000 0 0000 0 0036 0 0194 0 0000 0 0000 704 0 5 500 0 0068 0 0000 0 0000 0 0000 0 0025 0 0201 0 0000 0 0000 721 6 5 600 0 0068 0 0
79. 0195 0 0000 0 0000 10 8 0 400 0 0239 0 0001 0 0000 0 0000 0 0037 0 0196 0 0000 0 0000 11 5 0 500 0 0247 0 0002 0 0000 0 0000 0 0117 0 0197 0 0000 0 0000 12 8 0 600 0 0228 0 0003 0 0000 0 0000 0 0232 0 0197 0 0000 0 0000 14 5 0 700 0 0187 0 0003 0 0000 0 0000 0 0332 0 0195 0 0000 0 0000 17 2 0 800 0 0147 0 0003 0 0000 0 0000 0 0374 0 0192 0 0000 0 0000 22 0 0 900 0 0126 0 0002 0 0000 0 0000 0 0378 0 0192 0 0000 0 0000 28 3 1 000 0 0114 0 0002 0 0000 0 0000 0 0393 0 0191 0 0000 0 0000 38 4 1 100 0 0101 0 0002 0 0000 0 0000 0 0406 0 0189 0 0000 0 0000 50 5 1 200 0 0092 0 0002 0 0000 0 0000 0 0406 0 0189 0 0000 0 0000 65 3 1 300 0 0085 0 0001 0 0000 0 0000 0 0408 0 0189 0 0000 0 0000 83 5 1 400 0 0079 0 0001 0 0000 0 0000 0 0403 0 0189 0 0000 0 0000 105 3 1 500 0 0074 0 0000 0 0000 0 0000 0 0404 0 0190 0 0000 0 0000 129 6 1 600 0 0070 0 0000 0 0000 0 0000 0 0397 0 0190 0 0000 0 0000 161 9 1 700 0 0068 0 0000 0 0000 0 0000 0 0391 0 0191 0 0000 0 0000 224 6 1 800 0 0066 0 0000 0 0000 0 0000 0 0383 0 0192 0 0000 0 0000 1011 2 1 900 0 0064 0 0001 0 0000 0 0000 0 0380 0 0190 0 0000 0 0000 2066 2 2 000 0 0062 0 0001 0 0000 0 0000 0 0378 0 0191 0 0000 0 0000 1445 2 2 400 0 0060 0 0000 0 0000 0 0000 0 0295 0 0188 0 0000 0 0000 1741 8 2 500 0 0060 0 0000 0 0000 0 0000 0 0291 0 0185 0 0000 0 0000 1403 3 2 600 0 0061 0 0000 0 0000 0 0000 0 0283 0 0183 0 0000 0 0000 1586 4 2 700 0 0062 0 0000 0 0000 0 0000 0 0277 0 0183 0 0000 0 0000 2330 1 2 800 0
80. 071 Defence Research and Development Canada Atlantic McTaggart K A 2008 Improved Maneuvering Forces and Autopilot Modelling for the ShipMo3D Ship Motion Library DRDC Atlantic TM 2008 162 Defence Research and Development Canada Atlantic McTaggart K A 2011 Modelling of U tube Tanks for ShipMo3D Ship Motion Predictions DRDC Atlantic ECR 2011 300 Defence Research and Development Canada Atlantic McTaggart K A 2011 Modelling of Sloshing in Free Surface Tanks for ShipMo3D Ship Motion Predictions DRDC Atlantic ECR 2011 084 Defence Research and Development Canada Atlantic McTaggart K A 2011 Validation of ShipMo3D Version 3 0 User Applications for Simulation of Ship Motions DRDC Atlantic TM 2011 306 Defence Research and Development Canada Atlantic McTaggart K A 2010 ShipMo3D Version 2 0 User Manual for Simulating Motions of a Freely Maneuvering Ship in a Seaway DRDC Atlantic TM 2010 131 Defence Research and Development Canada Atlantic DRDC Atlantic TM 2011 307 39 12 McTaggart K A 2010 ShipMo3D Version 2 0 User Manual for Frequency Domain Analysis of Ship Seakeeping in a Seaway DRDC Atlantic TM 2010 132 Defence Research and Development Canada Atlantic 13 Nam Bo Woo Kim Yonghwan Kim Dae Woong and Kim Yong Soo 2009 Experimental and Numerical Studies on Ship Motion Responses Coupled with Sloshing in Waves Journal of Ship Research 53 2 68 82 14 Lloy
81. 0749 0753 0760 0769 0843 EN ad ooo O GO OOO O O G OOOOOO 0021 0025 0029 0029 0027 0027 0025 0024 0023 0022 0018 0016 0013 0015 0012 0011 0010 0009 0007 0006 0006 0005 0005 0004 0000 0002 0000 0000 0001 0002 0001 0000 0006 0014 0020 0021 0039 0024 0029 0025 0000 0000000000000 000000000000000000000000000o00o 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 o 0000000000000 0000000000000000000000000000so Pitch added mass and damping at forward Enfreg rad s 0 100 200 300 400 500 600 700 800 900 000 100 200 300 400 500 600 700 800 KA KA KA M K KA K M KA O OO O OO OO O DRDC Atlantic TM 2011 307 000 O OO KM KM M KM KM KM KM KM MM GG MM M M 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Speed A055 U AUpd55 U AUbc55 UU AUU55 5881 6175 7061 8769 0954 1776 9563 4830 9511
82. 1 character string array of floats speedsKnotsAziRpm Record tag speedsKnotsAziRpm Array of ship speeds knots at which azimuthing propeller RPM values are determined Record 32 Option and Angle for Evaluation of Azimuthing Propeller Force Slopes This record is required if aziRpmSpeedOption is set to aziRpmSpeed in Record 30 aziForceSlopeOption aziForceSlopeOption aziAttackAngleDeg 2 character strings 1 float aziForceSlopeOption Record tag aziForceSlopeOption Option for computing azimuthing propeller force slopes OF 0 and OFN Oa which can be used for frequency domain computations AziForceSlope Azimuthing propeller force slopes are evaluated NoAziForceSlope Azimuthing propeller are not evaluated aziAttackAngleDeg Flow angle of attack for computing azimuthing propeller force slopes 218 DRDC Atlantic TM 2011 307 Record 33 End of SM3DBuildShip3 Data end SM3DBuildShip3 1 character string with 2 words DRDC Atlantic TM 2011 307 219 E 2 Sample Input File for SM3DBuildShip3 begin SM3DBuildShip3 label Generic frigate radDifDBFileName genFrigRadDifDB bin shipDBFileName genFrigShipForMotionDB bin dryPanelOption DryPanel dryPanelFileName genFrigDryPanelHull bin lengthData 120 000 20 000 loadCondition 1025 000 4 200 0 000 6 000 correctionGM 0 000 gyradii 4 800 30 000 30 000 tRetardIncMax 0 100 20 000 enFreqIntIncMax 0 100 5 000 retardHighFregApproxOption RetardHighFreqAp
83. 1011 GO N L Q Q OO GW MA E GOM O M M L OO WM E M M 01 01 E O1 O PB N y ND OO O amp O1 amp O1 E amp N O1 OO L GA 105 1 900 0 9656 0 0458 0 0202 0 0171 3 5715 0 5234 0 2638 0 0241 2066 2 2 000 0 9557 0 0416 0 0173 0 0182 3 4285 0 5732 0 2596 0 0186 1445 2 2 400 1 0128 0 0350 0 0097 0 0141 2 5598 0 6608 0 2618 0 0158 1741 8 2 500 1 0223 0 0311 0 0089 0 0133 2 4974 0 6933 0 2642 0 0146 1403 3 2 600 1 0313 0 0275 0 0081 0 0125 2 4141 0 7197 0 2656 0 0131 1586 4 2 700 1 0441 0 0242 0 0077 0 0118 2 3423 0 7463 0 2737 0 0122 2330 1 2 800 1 0591 0 0189 0 0076 0 0111 2 3699 0 7571 0 2709 0 0088 2735 3 2 900 1 0534 0 0167 0 0068 0 0103 2 2505 0 7490 0 2691 0 0088 1863 4 3 000 1 0702 0 0150 0 0061 0 0097 2 1314 0 7454 0 2712 0 0074 2364 8 3 100 1 0828 0 0152 0 0054 0 0092 2 0075 0 7651 0 2761 0 0081 2222 2 3 200 1 1063 0 0116 0 0054 0 0087 2 0317 0 7849 0 2827 0 0061 2637 9 3 300 1 1070 0 0108 0 0051 0 0081 2 0065 0 7652 0 2809 0 0062 2141 1 3 400 1 1282 0 0110 0 0046 0 0078 1 8933 0 7933 0 2881 0 0059 2390 3 3 500 1 1489 0 0075 0 0047 0 0074 1 9638 0 7988 0 2953 0 0043 2361 1 3 600 1 1658 0 0087 0 0047 0 0070 2 0162 0 7909 0 3007 0 0048 2351 3 3 700 1 1955 0 0060 0 0047 0 0067 2 0883 0 8414 0 3124 0 0035 2435 8 4 000 1 2628 0 0175 0 0038 0 0053 1 9711 0 6586 0 3358 0 0090 2165 1 4 400 0 6408 0 0016 0 0012 0 0041 0 8541 0 4662 0 0463 0 0014 1852
84. 122 0 001 26 1 9 700 0 429 0 007 0 152 0 001 0 124 0 001 24 6 9 750 0 431 0 006 0 152 0 001 0 125 0 000 23 3 9 800 0 434 0 006 0 152 0 001 0 126 0 000 21 4 9 850 0 437 0 006 0 152 0 001 0 128 0 001 21 0 9 900 0 442 0 006 0 152 0 001 0 131 0 002 20 9 9 950 0 449 0 010 0 152 0 001 0 134 0 005 22 9 10 000 0 452 0 027 0 153 0 001 0 135 0 011 26 5 Infinite 0 480 0 000 0 154 0 000 0 134 0 000 No encounter frequencies removed due to high condition numbers 160 DRDC Atlantic TM 2011 307 Annex E Files for Building Ship with SM3DBuildShip3 E 1 Format of Input Ship File for SM3DBuildShip3 Record 1 Beginning Record begin SM3DBuildShip3 1 character string with 2 words Record 2 Run Label label label 2 character strings label Record tag label Label for run This can include spaces Record 3 Beginning of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input begin note 1 character string with 2 words Record 3a Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input noteText character string noteText Text of note Multiple lines can be entered Record 3b End of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input end note 1 character string with 2 words DRDC Atlantic TM 2011 307 161 Record 4 Radiation and
85. 13 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 14 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 15 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 16 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 17 yOffsets 6 zOffsets 9 end hullLine begin hullLine station 18 yOffsets 6 zOffsets 9 end hullLine begin hullLine station 19 507 401 507 401 507 401 437 401 345 401 214 401 049 401 884 401 711 401 401 401 401 401 401 401 401 401 401 DRDC Atlantic TM 2011 307 yOffsets 6 zOffsets 9 end hullLine begin hullLine station 20 yOffsets 6 zOffsets 9 end hullLine end patch end patchHul13 76 507 O 401 9 401 302 0 401 9 401 DRDC Atlantic TM 2011 307 A 5 Sample Output File for SM3DPanelHull3 Program SM3DPanelHul13 ShipMo3D 3 0 Version 3 0 release 5 October 2011 Time November 08 11 4 40 14 PM Run label Generic frigate x ECHO OF USER INPUT Run option Full Patch hull input file name genericFrigatePatchHull3 inp Patch hull data file name genFrigPatchHull bin Wet patch hull data file name genFrigWetPatchHull bin Dry patch hull data file name genFrigDryPatchHull bin Ship Length Data Length between perpendiculars 120 000 m Station of aft perpendicular 20 000 Patch Fitting Parameters input Maximum number of contro
86. 200 205 211 218 229 243 264 297 345 299 046 030 023 056 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 000 000 000 000 000 000 000 001 001 001 001 001 001 001 001 001 001 002 002 002 002 002 003 003 003 004 004 005 005 006 006 007 009 010 013 017 023 036 062 137 359 293 099 042 022 41 36 32 29 26 25 23 22 22 21 20 20 20 19 19 19 19 19 19 19 19 19 19 19 20 20 21 21 22 24 25 27 29 32 37 43 53 67 93 148 255 237 151 104 80 GO KK KA KD E OO OO J KM O Qm KM O WO QO KM DEN OTP FPP ODN OF BPWAWBONWRFONNEF W DRDC Atlantic TM 2011 307 800 850 OO ORR EE ss EE HS ES SS ES SS SS SS HS SS CO GO Q 9 Q 9 Q Q G GO Q OU WW OO GO Ww M ND o o Wee O OO O OO H OO OO OO OOOOOOOOOOOOOOOOO 948 509 195 960 778 634 516 418 335 265 204 150 103 061 023 011 042 070 097 121 144 165 186 206 224 243 262 280 300 320 342 367 396 432 481 554 680 961 365 662 198 019 072 128 167 O O O OO OM OO OO 000 00 0000 000 00 000 00 000 0000 00 00 0000 00 000 0 DRDC Atlantic TM 2011 307 348 217 143 099 070 051 038 029 023 018 014 012 010 008 007 006 006 005 005 005 005 005 005 005 005 005 005 006 007
87. 232 204 173 163 139 127 117 108 096 082 085 080 076 075 059 026 020 020 Pitch Added Damping mass 588 618 706 877 095 178 956 483 951 589 412 282 182 116 068 018 994 979 965 966 956 013 022 031 044 059 053 070 083 106 107 128 149 166 195 263 641 920 929 OO O K KM K K HE HHA HE HHA H Kk O O OO O K KM K K KA RE END ND M KM KM N O OQO OO ET C OOTO OGOGO 9 9 69 E E E 0 00 00 E TO lek I Eh HR EE P E O O 000 007 032 116 370 843 363 697 7129 542 360 228 095 980 875 801 720 649 584 537 490 305 286 265 248 242 222 203 185 181 174 159 160 160 161 141 055 042 045 Condition number 10 10 10 11 12 14 17 22 28 38 50 65 83 105 129 224 1011 2066 1445 1741 1403 1586 2330 2735 1863 2364 2222 2637 2141 2390 2361 2351 2435 2165 1852 1852 2368 O1 H OO L KX G K ONO G KX G GQ M KM KM O Q O LG Q G Qm M O1 O0 O1 WHE 99 4 900 0 007 0 001 1 514 0 009 0 939 0 019 1955 0 5 000 0 007 0 001 1 525 0 008 0 964 0 015 1617 1 5 100 0 007 0 000 1 531 0 006 0 978 0 007 1198 2 5 200 0 007 0 000 1 537 0 003 0 992 0 000 1121 9 5 300 0 007 0 000 1 545 0 000 1 008 0 004 916 4 5 400 0 007 0 000 1 549 0 002 1 014 0 002 704 0 5 500 0 007 0 000 1 546 0 000 1 004 0 003 721 6
88. 300 800 900 100 200 300 500 600 1 3164 4089 2774 3404 3041 7229 8919 3214 1449 1379 DRDC Atlantic TM 2011 307 9 CO N O1 OO N O F 00 143 400 5644 1278 1334 1269 2098 2305 3096 3031 8 WON amp O1 H WN o O O O OO OOOOOOOOOOOOOOOOOOOOO 139 128 117 106 097 089 082 075 067 054 038 028 026 025 023 021 018 016 014 013 016 015 015 013 012 000 983 2549 1944 1242 1191 1277 1245 1228 1210 2495 1555 1428 1109 1892 1584 1226 1108 889 941 775 581 563 582 576 D WO KM KO O O GQ KA BRAN ADF H K LU O OWN Ae 101 Summary of hydrodynamic coefficients at forward speed Added mass non dimensionalised by modal inertia Damping non dimensionalised by modal inertia SQRT G 1pp Speed for hydrodynamic coefficients 6 861 m s 13 322 knots Froude number for hydrodynamic coefficients 0 200 Ship mass 3712916 723 kg Roll gyradius 5 644 m Pitch gyradius 30 000 m Yaw gyradius 30 000 m Surge added mass and damping at forward speed Enfreq A011 U AUpd11 U AUbc11 UU AUU11 B011 U BUpd11 U BUbc11 UU BUU11 Condition rad s number 0 000 0 0194 0 0000 0 0000 Infinite 0 0000 0 0194 0 0000 0 0000 0 100 0 0196 0 0000 0 0000 0 0000 0 0000 0 0194 0 0000 0 0000 10 1 0 200 0 0204 0 0000 0 0000 0 0000 0 0000 0 0194 0 0000 0 0000 10 3 0 300 0 0219 0 0000 0 0000 0 0000 0 0006 0
89. 35 0 0040 1 4795 0 5179 0 0485 0 0012 1231 1 2 900 0 1900 0 0006 0 0032 0 0038 1 4131 0 5248 0 0494 0 0009 983 1 106 DRDC Atlantic TM 2011 307 000 100 200 300 400 500 600 700 000 400 700 800 900 000 100 200 300 400 500 600 700 800 900 000 Infinite O1 O1 O1 O1 O1 O1 O1 O1 O1 Q amp amp BP BPP L LU L L GQ WW Ww o DRDC Atlantic TM 2011 307 0000000000000 0000000000o0oo 1893 1914 1973 1981 1993 2029 2048 2087 2172 2278 2338 2373 2393 2414 2424 2450 2470 2498 2542 2573 2557 2560 2571 2578 3045 o o o oo0oooo O OOOOOOOOOOOOOOO 0003 0002 0005 0002 0001 0004 0004 0005 0007 0008 0007 0009 0008 0008 0008 0008 0005 0005 0006 0094 0027 0002 0020 0003 0000 0000000000000 00000000000o00o0o 0027 0024 0021 0018 0016 0013 0012 0011 0007 0005 0004 0003 0003 0002 0002 0002 0002 0001 0002 0002 0001 0002 0001 0001 0000 0000000000000 000000000000o 0034 0033 0032 0030 0028 0027 0025 0024 0021 0018 0016 0015 0014 0014 0013 0013 0012 0012 0009 0003 0009 0010 0010 0009 0000 O OO OO OOO OOO OOO M KM KM KM KM ER 3391 2722 1873 1148 0594 0094 9404 8615 7531 5829 4668 4435 4211 3967 3703 3316 2955 2682 2512 3171 3007 2961 2642 2470 0000
90. 4 to 25a explicitly described for the ship should not be included in the correction to metacentric height Record 10 Mass Gyradii eyradii rollGyradius pitchGyradius yawGyradius 1 character string 3 floats gyradii Record tag rollGyradius Roll radius of gyration m pitchGyradius Pitch radius of gyration m yawGyradius Yaw radius of gyration m Record 11 Time Increment and Maximum Value for Hull Hydrody namic Retardation Forces tRetardIncMax tRetardInc tRetardMax 1 character string 2 floats tRetardIncMax Record tag tRetardInc Time increment for hull hydrodynamic retardation forces s A value of approximately 0 05 L g is recommended tRetardMax Maximum time for hull hydrodynamic retardation forces s A value of approximately 5 L g is recommended 164 DRDC Atlantic TM 2011 307 Record 12 Encounter Freguency Increment and Maximum Value for Integration of Hull Hydrodynamic Retardation Functions enFreqIntIncMax enFreqIntInc enFreqIntMax 1 character string 2 floats enFreqIntIncMax Record tag enFreqIntInc Increment of encounter frequency for computation of retardation forces using integration of frequency domain coefficients A value of approximately 0 4 g L is recommended enFreqIntMax Maximum encounter frequency for computation of retardation forces using integration of frequency domain coefficients This value should typically correspond with the maxi
91. 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 7 742 8 018 8 295 8 571 8 848 9 124 9 401 end hullLine begin hullLine station 20 yOffsets 0 000 2 0 4 194 5 041 5 300 5 413 5 473 5 530 5 586 5 640 5 692 5 744 5 795 5 846 5 896 5 947 5 998 6 049 6 101 6 151 6 201 6 251 6 302 zOffsets 3 870 3 870 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 7 742 8 018 8 295 8 571 8 848 9 124 9 401 end hullLine end patch ST TS TS THH HH H HHHH HHRHH HHHH H H TH TT H HEHEHE HH begin patch label Outer transom normalRanges 1 0 0 9 0 1 0 1 0 1 0 1 areaPanelLimit 0 5 begin hullLine station 20 yOffsets 6 302 zOffsets 9 401 end hullLine begin hullLine station 20 yOffsets 6 251 6 251 zOffsets 9 124 9 401 end hullLine begin hullLine station 20 yOffsets 5 998 5 998 zOffsets 7 742 9 401 end hullLine begin hullLine station 20 yOffsets 5 473 5 473 zOffsets 4 977 9 401 end hullLine begin hullLine station 20 yOffsets 5 041 5 041 72 DRDC Atlantic TM 2011 307 zOffsets 4 147 9 401 end hullLine begin hullLine station 20 yOffsets 4 194 4 194 zOffsets 3 871 9 401 end hullLine end patch THH THH HH H HHHH HHHH HHH HHH H TH TT H HEHEHE HH begin patch label Inner transom normalRanges 1 0 0 9 0 1 0 1 0 1 0 1 areaPanelLimit 0 2 begin hullLine station 20 yOffsets 4 194 4 194 zOffsets 3 871 9 401 end hullLine begin hullLine station 20 yOffsets 2 000 2 000 zOffsets 3 870 9 401 en
92. 56 0 728 0 795 0 862 0 929 0 998 1 066 1 135 1 205 1 275 1 346 1 417 1 491 1 565 1 641 1 719 1 799 1 884 1 972 2 065 2 163 2 265 2 371 4 849 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 11 889 end hullLine begin hullLine station 2 yOffsets 0 000 0 169 0 449 0 693 0 902 1 085 1 250 1 404 1 547 1 683 1 816 1 944 2 069 2 189 2 304 2 415 2 523 2 630 2 736 2 840 2 944 3 048 3 153 3 260 3 368 3 478 3 591 3 707 3 827 5 942 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 DRDC Atlantic TM 2011 307 6 359 6 636 6 912 7 189 7 465 11 613 end hullLine begin hullLine station 3 yOffsets 0 000 0 169 0 684 1 073 1 394 1 662 1 896 2 111 2 312 2 503 2 685 2 861 3 029 3 191 3 345 3 492 3 632 3 767 3 895 4 019 4 139 4 254 4 367 4 477 4 585 4 692 4 796 4 900 5 004 6 504 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 11 336 end hullLine begin hullLine station 4 yOffsets 0 000 0 169 1 095 1 637 2 035 2 367 2 653 2 908 3 142 3 361 3 567 3 762 3 950 4 130 4 302 4 464 4 618 4 760 4 893 5 017 5 132 5 240 5 341 5 435 5 523 5 607 5 688 5 767 5 845 6 8
93. 67 0 005 132 5 5 350 0 269 0 010 0 144 0 001 0 078 0 004 65 1 5 400 0 281 0 009 0 145 0 001 0 087 0 003 47 6 5 450 0 292 0 009 0 145 0 001 0 095 0 002 42 8 5 500 0 302 0 009 0 146 0 001 0 101 0 002 44 7 5 550 0 311 0 009 0 146 0 001 0 107 0 002 54 3 5 600 0 320 0 008 0 147 0 001 0 112 0 002 87 6 5 650 0 329 0 008 0 147 0 001 0 117 0 002 134 7 5 700 0 337 0 008 0 147 0 001 0 122 0 002 112 3 5 750 0 345 0 008 0 148 0 001 0 126 0 002 96 7 5 800 0 354 0 009 0 148 0 001 0 131 0 002 56 1 5 850 0 364 0 009 0 149 0 001 0 136 0 003 42 2 5 900 0 374 0 009 0 149 0 001 0 142 0 003 36 3 5 950 0 387 0 010 0 149 0 001 0 148 0 004 33 0 158 DRDC Atlantic TM 2011 307 300 350 400 450 500 550 650 700 750 350 00 00 00 NNNNNNNNNNANNNNNNANNNNADADAAARAARAAAAAAAADAMRAAGD Ha a o o0o00O0OO0O0O0O0O0O0O0O0O0O0O0O0O0O000000000000000000000000000000000snos9 402 425 462 541 613 113 221 272 299 317 329 339 346 353 359 365 370 375 380 384 389 395 402 410 422 441 478 427 313 342 360 370 377 382 387 391 395 398 401 405 408 412 416 421 429 DRDC Atlantic TM 2011 307 O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 012 015 025 067 420 191 056 030 020 017 015 014 012 012 011 011 010 010 010 010 010 010 010 011 012 019 049 197 077 034 023 019 016 014 013 012
94. 78 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 11 060 end hullLine begin hullLine station 5 yOffsets 0 000 0 169 1 341 2 094 2 620 3 032 3 376 3 675 3 940 4 180 4 399 4 601 4 788 4 962 5 123 5 272 5 410 5 537 5 653 5 759 5 857 5 945 6 027 6 101 6 171 6 236 6 298 6 357 6 415 7 113 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 10 783 end hullLine begin hullLine station 6 yOffsets 0 000 0 169 1 428 2 435 3 134 3 655 4 061 4 393 4 675 4 921 5 137 5 329 5 502 5 658 5 800 5 928 6 045 6 151 6 247 6 334 6 412 6 483 6 545 6 601 6 652 6 699 6 744 6 788 6 831 7 301 zOffsets 0 000 0 000 0 276 0 553 0 829 1 106 1 382 1 659 1 935 2 212 2 488 2 765 3 041 3 318 3 594 3 871 4 147 4 424 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 10 507 68 DRDC Atlantic TM 2011 307 end hullLine begin hullLine station 7 yOffsets 0 000 0 5 320 5 6 520 6 6 950 6 zOffsets 0 000 0 1 935 2 4 147 4 6 359 6 end hullLine begin hullLine station 8 yOffsets 0 000 0 5 799 6 6 820 6 7 114 7 zOffsets 0 000 0 1 935 2 4 147 4 6 359 6 end hullLine begin hullLine station 9 yOffsets 0 000 0 6 120 6 6 986 7 7 214 7 zOffsets 0 000 0 1 935 2 4 147
95. 8 4 700 0 9198 0 0011 0 0008 0 0040 0 6975 0 6802 0 1715 0 0001 1852 5 4 800 0 9290 0 0007 0 0009 0 0038 0 7553 0 7083 0 1747 0 0000 2368 9 4 900 0 9394 0 0031 0 0002 0 0036 0 3255 0 6493 0 1792 0 0009 1955 0 5 000 0 9644 0 0013 0 0001 0 0035 0 2554 0 6796 0 1897 0 0002 1617 1 5 100 0 9779 0 0005 0 0000 0 0033 0 1192 0 6387 0 1950 0 0007 1198 2 5 200 0 9917 0 0089 0 0002 0 0032 0 0070 0 6388 0 2004 0 0047 1121 9 5 300 1 0081 0 0195 0 0003 0 0033 0 0795 0 8401 0 2072 0 0095 916 4 5 400 1 0139 0 0206 0 0001 0 0039 0 0313 1 3050 0 2092 0 0102 704 0 5 500 1 0044 0 0009 0 0002 0 0044 0 0611 1 6718 0 2021 0 0004 721 6 5 600 0 9972 0 0485 0 0006 0 0040 0 7486 1 5715 0 2015 0 0092 746 7 5 700 1 0107 0 0528 0 0015 0 0031 0 9732 1 2659 0 2107 0 0297 607 8 5 800 1 0366 0 0552 0 0017 0 0030 1 3509 0 9799 0 2167 0 0272 551 8 5 900 1 0570 0 0510 0 0020 0 0026 1 7504 0 7436 0 2274 0 0233 548 8 6 000 1 0974 0 0471 0 0020 0 0024 1 6358 0 6071 0 2442 0 0237 689 9 Infinite 1 2839 0 0000 0 0000 0 0000 0 0000 0 5455 0 3139 0 0000 Yaw added mass and damping at forward speed Enfreq A066 UxAUpd66 U AUbc66 UU AUU66 BO66 U BUpd66 U BUbc66 UU BUU66 Condition rad s number 0 000 0 6165 0 0000 0 0000 Infinite 0 0000 0 6074 0 1566 0 0000 0 100 0 6183 0 0000 0 0000 4 5098 0 0000 0 6077 0 1571 0 0000 12 6 0 200 0 6239 0 0000 0 0000 1 1349 0 0000 0 6090 0 1586 0 0001 12 7 0 300 0 6341 0 0001 0 0002 0 5108 0 0001 0 6114 0 1614 0 0006 12 8 0 40
96. 9 If this record is not included then all integral gains are set to 0 0 intGains surgeIntGain swayIntGain heavelntGain rollIntGain pitchIntGain yawIntGain 1 character string 6 floats intGains Record tag surgelntGain Surge integral gain deg m s This value should be 0 0 swaylntGain Sway integral gain deg m s This value should be 0 0 heavelntGain Heave integral gain deg m s This value is typically 0 0 rollIntGain Roll integral gain deg deg s This value is typically 0 0 unless rudder stabilization is desired pitchIntGain Pitch integral gain deg deg s This value is typically 0 0 yawIntGain Yaw integral gain deg deg s For a typical ship with a downward oriented rudder this value is typically lt 0 0 Record 16d11 Rudder Autopilot Integration Time This record must be included after Record 16d10 if Record 16d10 is included integrationTime integrationTime 1 character string 1 float integrationTime Record tag integrationTime Integration time for rudder autopilot s Record 16d12 End of Rudder Data This record must follow Record 16d8 or 16d9 end rudder 1 character string with 2 words Record 16e End of Lift Surfaces Data end liftSurfaces 1 character string with 2 words Record 17 Beginning of Propeller Data begin propellers 1 character string with 2 words 190 DRDC Atlantic TM 2011 307 Record 17a Beginnin
97. 9 m2 Minimum panel area 0 090909 m2 Maximum panel area 0 090909 m2 Normal ranges minimum and maximum Actual User input limits 134 DRDC Atlantic TM 2011 307 nx 0 000 0 000 0 010 0 010 ny 1 000 1 000 0 990 1 000 nz 0 000 0 000 0 010 0 010 Patch label Aft dry Number of panels 42 port side of hull Total panel area 4 000000 m2 Average panel area 0 095238 m2 Minimum panel area 0 095238 m2 Maximum panel area 0 095238 m2 Normal ranges minimum and maximum Actual User input limits nx 1 000 1 000 1 000 0 990 ny 0 000 0 000 0 010 0 001 nz 0 000 0 000 0 010 0 010 Patch label Top dry Number of panels 88 port side of hull Total panel area 8 000000 m2 Average panel area 0 090909 m2 Minimum panel area 0 090909 m2 Maximum panel area 0 090909 m2 Normal ranges minimum and maximum Actual User input limits nx 0 000 0 000 0 010 0 010 ny 0 000 0 000 0 010 0 010 nz 1 000 1 000 0 990 1 000 ok PROPERTIES FOR PANELLED DRY TANK Calculated properties for checking of mesh Closure error sum of area nx 0 000000 m2 Closure error approx front area 0 000000 Profile area 8 000000 m2 Volumes based on integration over tank interior surface Integral of x nx 32 000000 m3 Integral of y ny 32 000000 m3 Integral of z nz 32 000000 m3 X centre of volume based on integration over tank interior surface From integral of 0 5 xx xx nx 0 000000 m From integral of x y ny l 0
98. ART a a a a An ts 1 2 New Features for ShipMo3D Version 3 1 2 1 High Frequency Approximation for Evaluating Retardation Functions 2 2 2 Modelling of U tube Tanks for Roll Stabilization 2 2 3 Modelling of Sloshing in Tanks with Free Surfaces 2 2 4 Application SM3DSeakeepSeawayFromRaos for Predicting Motions in a Seaway Using Input Response Amplitude Operators 3 2 5 Prediction of Motion Sickness Incidence in the Frequency Domain 3 2 6 Output of Motion Response Amplitude Operators for Operability Analysis Using SHIPOBO ia a acea ee Ro VEER a 3 3 Overview of Using ShipMo3D for Creating a Model of a Ship for Predicting Motions sageus Geese IE e io AT ava de BE SS 4 A Qoordinat Systems aar ai ans de a Ee SE a A T 5 Panelling of the Ship Hull SM3DPanelHull 10 5 1 Hull Description Using a Patch Hull File 11 5 2 Control of Panelling of the Hull aoaaa 15 6 Radiation and Diffraction Computations SM3DRadDif 17 DRDC Atlantic TM 2011 307 V 7 Panelling of a Sloshing Tank SM3DPanelSloshTank 20 8 Radiation Computations for a Sloshing Tank SM3DRadSloshTank 23 9 Building of Ship Model SM3DBuildShip 26 9 1 Hull Viscous Forces Y e ar An ee a A ue s 28 9 2 Hull Maneuvering Forces 3 0 4 Lies ha BE bee da SRG At RR 28 9 3 Ship Appendages Bilge Keels Static Foils Skegs and Rudders 29 94 Prope
99. DBuildShip cr e un modele de navire pouvant tre utilis pour pr voir les mouvements de navires soit dans le domaine fr quentiel ou le domaine temporel DRDC Atlantic TM 2011 307 i This page intentionally left blank DRDC Atlantic TM 2011 307 Executive summary ShipMo3D Version 3 0 User Manual for Creating Ship Models Kevin McTaggart DRDC Atlantic TM 2011 307 Defence R amp D Canada Atlantic December 2011 Introduction Ship motions influence the performance and safety of naval personnel and systems Consequently ship motion predictions are often used to support ship design and operation Frequency domain predictions are computationally efficient and suitable for ships travelling with steady speed and heading in moderate seaways Time domain analysis is required to model motions if a ship is freely maneuvering or in a heavy seaway Principal Results ShipMo3D is an object oriented library with associated user ap plications for predicting ship motions in calm water and in waves Motion predictions are available in both the frequency domain and the time domain For predictions in the time domain the ship can be freely maneuvering in either calm water or in waves This report serves as a user manual for creating ship models using Version 3 A companion report provides a user manual for predicting ship motions in the time and frequency domains using created ship models ShipMo3D Version 3 introduces capabilities for modellin
100. Diffraction Database File Name radDifDBFileName radDifDBFileName 2 character strings radDifDBFileName Record tag radDifDBFileName Name of file of radiation and diffraction computations in NET binary serialization format This file should be produced by SM3DRadDif3 before running SM3DBuildShip3 Record 5 Output Ship Database File Name shipDBFileName shipDBFileName 2 character strings shipDBFileName Record tag shipDBFileName Name of output ship database file in NET binary serialization format Record 6 Dry Panel Hull Option dryPanelOption dryPanelOption 2 character strings dryPanelOption Record tag dryPanelOption Option for including dry panel hull DryPanel Dry panel hull is included NoDryPanel Dry panel hull is not included Note Option dryPanel must be selected for time domain simulations that include nonlinear hull forces due to incident waves and buoyancy Record 6a Dry Panel Hull File Name This record is only required if dryPanelOption is set to dryPanel in Record 6 dryPanelFileName dryPanelFileName 2 character strings dryPanelFileName Record tag dryPanelFileName Name of input file describing hull in NET binary format 162 DRDC Atlantic TM 2011 307 Record 7 Length Data lengthData Ipp stationAP 1 character string 2 floats lengthData Record tag Ipp Ship length between perpendiculars m station AP Station number of t
101. File for SM3DPanelHull3 begin SMaDPanelHulla label Generic frigate runOption Full patchHullInputFileName genericFrigatePatchHull3 inp patchHullDataFileName genFrigPatchHull bin wetPatchHullDataFileName genFrigWetPatchHull bin dryPatchHullDataFileName genFrigDryPatchHull bin lengthData 120 000 20 000 patchFitParam 40 40 0 1 3 3 wetPanelFileName genFrigWetPanelHull bin dryPanelOption DryPanel dryPanelFileName genFrigDryPanelHull bin waterDensity 1025 000 draftTrim 4 2 0 shipkG 6 000 panelParameters 1 500000 3 000 15 000 end SM3DPanelHul13 66 DRDC Atlantic TM 2011 307 A 4 Sample Patch Hull Input File for SM3DPanelHull3 begin patchHull3 label Generic frigate with wide station 0 to give smooth hull lengthData 120 0 20 0 TRIER RH HHIHH HE RARER Aa EE RI II begin patch label Smooth hull from station 1 0 to 20 normalRanges 0 5 1 0 0 05 1 0 1 0 0 2 begin hullLine stations 0 5 1 0 yOffsets 0 0 0 0 zOffsets 8 0 12 2 end hullLine begin hullLine station 0 yOffsets 0 000 0 059 0 069 0 091 0 121 0 164 0 218 0 282 0 357 0 440 0 532 0 633 0 740 0 857 0 981 1 113 1 250 1 389 1 530 1 671 1 812 1 950 2 086 2 217 2 342 2 509 2 633 2 739 2 751 zOffsets 4 427 4 700 4 977 5 253 5 530 5 806 6 083 6 359 6 636 6 912 7 189 7 465 7 742 8 018 8 295 8 571 8 848 9 124 9 401 9 677 9 954 10 230 10 507 10 783 11 060 11 462 11 793 12 125 12 166 end hullLine begin hullLine station 1 yOffsets 0 000 0 169 0 283 0 387 0 485 0 575 0 6
102. HH H HH RR HHRHH HH HH HH HHHH HHHH begin patch label Back normalRanges 1 0 0 9 0 1 0 1 0 1 1 0 begin tankLine xOffsets 2 0 2 0 o o N oo o o e N oo 0 0 DRDC Atlantic TM 2011 307 129 yDffsets 2 0 2 0 zOffsets 0 0 4 0 end hullLine begin tankLine xOffsets 2 0 2 0 yDffsets 0 0 0 0 zOffsets 0 0 4 0 end tankLine end patch HHRHH HEHE AEE PE EEE H H HHHH H H HHHH H H HHHH H H HHT begin patch label Bottom normalRanges 0 1 0 1 0 1 1 0 1 0 0 9 begin tankLine xOffsets 2 0 2 yOffsets 0 0 2 zOffsets 0 0 0 0 end hullLine begin tankLine xOffsets 2 0 2 0 yOffsets 0 0 2 0 zOffsets 0 0 0 0 end tankLine end patch HHRHH H HHHH H RR RI R III RR RR RR RAE RR H H RR RR HH begin patch label Top normalRanges 0 1 0 1 0 1 1 0 0 9 1 0 begin tankLine xOffsets 2 0 2 yOffsets 2 0 0 zOffsets 4 0 4 0 end hullLine begin tankLine xOffsets 2 0 2 0 yDffsets 2 0 0 0 zOffsets 4 0 4 0 end tankLine end patch EEE RE RR RR RR EEE EEE SO end patchSloshTank3 0 0 0 0 130 DRDC Atlantic TM 2011 307 C 5 Sample Output File for SM3DPanelSloshTank3 Program SM3DPanelSloshTank3 ShipMo3D 3 0 Version 3 0 release 5 October 2011 Time November 09 11 8 31 29 AM Run label Cube slosh tank 4 mx 4 m X 2 m x ECHO OF USER INPUT Run option Full Patch tank input option Box Input dimensions for box shaped tank Length 4 000 m Width 4 000 m Height 4 000 m Patch tank data file name c
103. Hull draft at midships m The default is draftBIMid from Record 8 Hull trim by stern m The default is trimBlStern from Record 8 Hull maximum beam m The default is twice the maximum panel y value from the radiation and diffraction database file of Record 4 Hull block coefficient Cp The default is based on the wet panelled hull in the radiation and diffraction database file z coordinate of maneuver force relative to the ship waterline The default is 0 0 This record should be given as input if the draft and trim of the hull differ significantly from the draft and trim of the baseline DRDC Atlantic TM 2011 307 169 Record 15b Hull Maneuvering Coefficient Method hullManMethod hullManMethod 2 character strings hullManMethod Record tag hullManMethod Method for evaluating hull maneuvering coefficients InputManCo Input hull maneuvering coefficients are given Inoue Hull maneuvering coefficients are computed based on Inoue et al 21 Record 15b1 Nondimensional Hull Maneuvering Coefficients This record is required if hullManMethod is set to inputManCo in Record 15b hullManCo Yv Yr Nv Nr Yvv Yvr Yrr Nvr2 Nrr Nrv2 1 character strings 10 floats hullManCo Record tag Yv Linear sway sway force coefficient Y Yr Linear sway yaw force coefficient Y Nv Linear yaw sway force coefficient N Nr Linear yaw yaw force coefficient Nj Yvv Nonlinear sway sway f
104. M M MMM MM MMM KM KM KM OOO OOO OO O 0 0 0 0000 BO22 0000 0000 0001 0020 0141 0618 1904 4385 7902 1854 5757 9056 1476 3133 4008 3917 3817 3409 2779 2011 1160 7528 6757 5598 4599 3887 3103 0349 1011 1113 0443 9754 9022 7857 8150 6792 5459 3332 4269 4000 3471 2066 3175 3059 2530 1098 3243 3019 2377 1442 2515 0000 BO33 0000 0864 6214 0 0185 U BUpd22 1958 1958 1959 1962 1966 1965 1941 1889 1836 1798 1749 1737 1765 1788 1837 1807 1855 1895 1933 1966 1996 2092 2125 2102 2068 2124 2134 2085 2121 2140 2119 2127 2116 2122 2120 2127 2115 2111 2109 2114 2108 2114 2108 2103 2114 2146 2319 2186 2045 2182 2062 2233 o0o0o000 0000 OO OOO OO OOO OOO OOO OOO OOO OOO OOO OO OO OOO OOO OOO O U BUpd33 0 1096 0 1088 0 1065 0 0000 U BUbc22 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000000000000 000000000000000000000000000000000000000o U BUbc33 0 0000 0 0000 0 0000 0 0000 UU BUU22 0000 0000 0000 0000 0000 00
105. M3DRadSloshTank should ideally encompass the full range of encounter frequencies that will influence ship motions SM3DRadSloshTank typically requires less than one hour to run Section 8 describes SM3DRadSloshTank in greater detail SM3DBuildShip builds a model of a ship for ship motion computations The radiation and diffraction database file produced by SM3DRadDif is a key input component to SM3DBuildShip If the ship includes sloshing tanks then one or more sloshing radiation database files produced by SM3DRadSloshTank can be given as inputs Other program inputs include descriptions of appendages bilge keels rudders foils and skegs propellers U tube tanks and hull resistance SM3DBuildShip can build a ship model for either simulation in the time domain or for predictions in the frequency domain using the applications described in Reference 1 The above ShipMo3D applications use 3 main types of files User input data are read from input files with names ending with inp Application output data for re view by the user are written to output files with names ending with out Transfer of data between applications is typically done using files in NET binary serializa tion format with names ending with bin For files representing a seaway NET XML serialization format is used to facilitate utilization by other applications such as visualizers Each ShipMo3D application has default file names for input and output Prefi
106. Multiple points on field panel are used default Order of Gauss quadrature if used for source panel and or field panel Valid values are 1 single point per panel 2 4 points default and 3 9 points DRDC Atlantic TM 2011 307 139 Record 8a Encounter Freguencies One of Record 8a or Record 8b must be given enFregs enFreqs 1 character string array of floats enFreqs Record tag enFreqs Array of encounter frequencies rad s Record 8b Encounter Frequency Range One of Record 8a or Record 8b must be given enFregRange enFreqMin enFreqMax enFreqInc 1 character string 3 floats enFreqRange Record tag enFreqMin Minimum encounter frequency rad s enFreqMax Maximum encounter frequency rad s enFreqInc Encounter frequency increment rad s Note enFreqInc must be set such that there are no more than 1000 encounter frequencies Record 9 Encounter Frequencies for Removal This record is optional If this Record is omitted then no encounter frequencies are removed enFregsRemove enFreqsRemove 1 character string array of floats enFreqsRemove Record tag enFreqsRemove Array of encounter frequencies to be removed from values given in Records 8a or 8b rad s This record can be used for removing irregular frequencies If this record is not specified then no encounter frequencies are removed unless associated matrix condition numbers exceed limits specified
107. Option Record tag pairOption Option for input of single skeg or pair of skegs Single Input given for a single skeg Pair Input is used to create a pair of skegs Input dimensions should be provided for the port skeg Record 16c2 Skeg Label This record must follow Record 16c1 label label 2 character strings label Record tag label Label for skeg This can include spaces If pairOption is set to Pair in Record 16c1 then the port and starboard skeg labels will be prefixed with Port and Starboard respectively Record 16c3 Skeg Key This record must follow Record 16c2 key key 2 character strings key Record tag key Key for skeg This should consist of a single word with no spaces If pairOption is set to pair in Record 16c1 then the port and starboard skeg keys will be prefixed with Port and Starboard respectively Note that the key cannot be equal to All Record 16c4 Skeg Stations This record must follow Record 16c3 stations stations 1 character string array of floats stations Record tag stations Stations increasing for which skeg coordinates are given DRDC Atlantic TM 2011 307 181 Record 16c5 Lateral Coordinates of Skeg at Root This record must follow Record 16c4 yRoots yRoots 1 character string array of floats yRoots Record tag yRoots Lateral offsets of skeg root Input values correspond
108. Pitch Propeller This record must follow Record 17a8 end fixedPitchPropeller 1 character string with 2 words Record 17b End of Data for Propellers end propellers 1 character string with 2 words Record 18 Beginning of Rudder Propeller Interaction Coefficients begin rudderPropCo 1 character string with 2 words 194 DRDC Atlantic TM 2011 307 Record 18a Rudder Propeller Interaction Coefficients There can be an arbitary number of Records 18a rudderPropCo rudderKey propellerKey rudderPropCo 3 character strings nPropeller floats rudderPropCo Record tag rudderKey Key of rudder influenced by propeller propellerKey Key of propeller influencing rudder rudderPropCo Rudder prop interaction coefficient Record 18b End of Rudder Propeller Interaction Coefficients end rudderPropCo 1 character string with 2 words Record 19 Beginning of Azimuthing Propeller Data begin aziPropellers 1 character string with 2 words Record 19a Beginning of Azimuthing Propeller This record is optional and must follow Record 19 Sequences of Records 19a to 19418 can be entered to described an arbitrary number of azimuthing propellers begin aziPropeller 1 character string with 2 words Record 19a1 Pair Option This record must follow Record 19a pairOption pairOption 1 character string with 2 words pairOption Record tag pairOption Opt
109. Propeller DRDC Atlantic TM 2011 307 10 12 12 13 14 14 15 18 21 22 24 27 30 30 33 35 Figure 20 Normal Force Coefficient for Example Azimuthing Propeller 35 Figure 21 Aft View of U tube Tank with Fluid Displacement Angle 36 Figure 22 Aft View with ShipMo3D Input Dimensions for U tube Tank 27 x DRDC Atlantic TM 2011 307 1 Introduction This report describes the creation of ship models for ShipMo3D Version 3 0 an object oriented library with associated applications for simulation of a ship in waves A com panion report 1 is the user manual for predicting motions in the time and freguency domains using ShipMo3D Version 3 0 For each ShipMo3D application user input is read from an ASCII input file Each application produces an ASCII output file and many applications also produce graphical output The ShipMo3D graphical user interface GUI ShipMo3D30 exe can be used to interactively prepare input data launch applications and view output results Several reports describe the theory behind ShipMo3D and also give verification and validation of ShipMo3D results References 2 and 3 describe the prediction of hull hy drodynamic forces The modelling of seaways is described in Reference 4 Reference 5 covers appendage and viscous forces which are important for predicting lateral plane motions The extension of ShipMo3D to freely maneuvering ships is described in Referen
110. Record 4 blockCoResist Hull block coefficient Cp The default is based on the wet panelled hull in the radiation and diffraction database file waterplaneCoResist Hull waterplane area coefficient Cy The default is based on the wet panelled hull in the radiation and diffraction database file areaTransomResist Cross sectional area of hull transom m areaMidshipsResist Cross sectional area of hull at midships m2 Note This record should be given as input if the draft and trim of the hull differ significantly from the draft and trim of the baseline DRDC Atlantic TM 2011 307 167 Record 14f Bulbous Bow Dimensions for Computing Ship Resistance This record can optionally be included if resistOption is set to HoltropMennen in Record 14d If the record is omitted then it is assumed that the ship has no bulbous bow bulbousBowDim areaBulbousBow zBlBulbousBow zBlKeelBow 1 character string 3 floats bulbousBowDim Record tag areaBulbousBow Cross sectional area of the bulbous bow m2 zBlBulbousBow Height of the centre of the bulbous bow above the baseline m ZBlKeelBow The height of the ship keel above the baseline at the longitudinal location of the bulbous bow m Record 14g Ship Resistance Coefficients This Record must only be given if resistOption is set to InputResist in Record 14d resistCos resistCos 1 character string array of floats resistCos Record tag resistC
111. SN O O0 Q G O OM KM GQ LG HN Od QAQA ONN O1 KM O OO d O Q O1 N G LG KM Q N 159 8 250 0 442 0 017 0 152 0 001 0 140 0 009 35 4 8 300 0 461 0 046 0 152 0 001 0 147 0 020 47 4 8 350 0 401 0 088 0 151 0 002 0 139 0 046 58 2 8 400 0 381 0 040 0 151 0 001 0 103 0 041 53 7 8 450 0 391 0 024 0 151 0 001 0 099 0 019 42 2 8 500 0 397 0 019 0 151 0 001 0 104 0 010 38 0 8 550 0 402 0 015 0 151 0 001 0 109 0 006 38 6 8 600 0 405 0 013 0 151 0 001 0 112 0 004 37 2 8 650 0 408 0 012 0 151 0 001 0 114 0 003 31 9 8 700 0 411 0 011 0 152 0 001 0 116 0 002 33 0 8 750 0 414 0 010 0 152 0 001 0 118 0 002 34 5 8 800 0 416 0 009 0 152 0 001 0 120 0 001 36 0 8 850 0 419 0 009 0 152 0 001 0 121 0 001 34 9 8 900 0 421 0 008 0 152 0 001 0 123 0 001 30 0 8 950 0 424 0 008 0 152 0 001 0 125 0 001 29 0 9 000 0 427 0 008 0 152 0 001 0 127 0 001 28 8 9 050 0 431 0 008 0 152 0 001 0 129 0 002 27 2 9 100 0 437 0 009 0 152 0 001 0 132 0 003 27 7 9 150 0 447 0 015 0 152 0 001 0 136 0 007 28 4 9 200 0 450 0 043 0 152 0 001 0 138 0 016 37 8 9 250 0 413 0 043 0 152 0 001 0 125 0 028 36 0 9 300 0 411 0 025 0 152 0 001 0 112 0 019 35 2 9 350 0 414 0 018 0 152 0 001 0 113 0 010 31 3 9 400 0 417 0 014 0 152 0 001 0 115 0 006 26 7 9 450 0 419 0 012 0 152 0 001 0 117 0 004 25 2 9 500 0 422 0 010 0 152 0 001 0 118 0 003 25 0 9 550 0 424 0 009 0 152 0 001 0 120 0 002 23 7 9 600 0 426 0 008 0 152 0 001 0 121 0 001 25 5 9 650 0 427 0 008 0 152 0 001 0
112. Scale RedHullYellowApp ShipParts WetWhiteDryGrey GreyScale PartialGreyScale and White showStarboardOption Option for showing starboard portion of hull ShowStarboard Both sides of hull are shown HideStarboard Only port side of hull is shown smoothShadeOption Option for shading of hull panels Solid Each panel has a solid colour based on the centroid location Smooth Each panel can have colour variation within the panel Record 26g Stations for Cropping Plot This record is optional if a plot is being specified cropStations stationMinCrop stationMaxCrop 1 character string 2 floats cropStations Record tag stationMinCrop Minimum station for cropping plot stationMaxCrop Maximum station for cropping plot Note If this record is omitted for a plot then there is no cropping of the plot Record 26h Line Thickness This record is optional if a plot is being specified lineThickness lineThickness 1 character string 1 float lineThickness Record tag lineThickness Line thickness of panels default 1 0 DRDC Atlantic TM 2011 307 211 Record 26i End of Ship Plot Data end shipPlots 1 character string with 2 words Record 27 Beginning of Retardation Function Plot Data This record is optional begin retardPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 27a to
113. ShipMo3D Version 3 0 User Manual for Creating Ship Models Kevin McTaggart Defence R amp D Canada Atlantic Technical Memorandum DRDC Atlantic TM 2011 307 December 2011 Principal Author Kevin McTaggart Approved by Neil Pegg Head Warship Performance Approved for release by Calvin Hyatt Chair Document Review Panel Her Majesty the Queen in Right of Canada as represented by the Minister of National Defence 2011 Sa Majest la Reine en droit du Canada telle que repr sent e par le ministre de la D fense nationale 2011 Abstract ShipMo3D is an object oriented library with associated user applications for predict ing ship motions in calm water and in waves This report serves as a user manual for creating ship models using ShipMo3D Version 3 0 A companion report serves as a user manual for predicting ship motions in the time and freguency domains Version 3 of ShipMo3D introduces modelling of sloshing tanks and U tube tanks Several ShipMo3D applications are used for creating a ship SM3DPanelHull creates a panelled representation of the wet and dry portions of the ship hull SM3DRadDif computes radiation and diffraction forces acting on the wet hull using a bound ary element method SM3DPanelSloshTank creates a panelled representation of a sloshing tank such as a tank containing liquid cargo or a roll stabilization tank SM3DRadSloshTank computes sloshing forces arising from motions in the frequenc
114. a descriptive note regarding input end note 1 character string with 2 words DRDC Atlantic TM 2011 307 47 Record 4 Run Type runOption runOption 2 character strings runOption Record tag runOption Option for run Full Full run including panelling of hull NoPanel No panelling of the hull This run type can be used for checking of the patch hull Record 5 Patch Hull Input File Name patchHullInputFileName patchHullInputFileName 2 character strings patchHullInputFileName Record tag patchHullInputFileName Name of input file with description of patch hull Record 6 Patch Hull Data File Name patchHullDataFileName patchHullDataFileName 2 character strings patchHullDataFileName Record tag patchHullDataFileName Name of file to be written with binary representation of patch hull Record 7 Wet Patch Hull Data File Name wetPatchHullDataFileName wetPatchHullDataFileName 2 character strings wetPatchHullDataFileName Record tag wetPatchHullDataFileName Name of file to be written with binary representation of wet patch hull Record 8 Dry Patch Hull Data File Name dryPatchHullDataFileName dryPatchHullDataFileName 2 character strings dryPatchHullDataFileName Record tag dryPatchHullDataFileName Name of file to be written with binary representation of dry patch hull 48 DRDC Atlantic TM 2011 307 Record 9 Length Data lengthData
115. a single column Record 19e Column Options for Longitudinal Modes This record is optional if a plot is being specified longColumns surgeColumn heaveColumn pitchColumn longConditionColumn 5 character strings longColumns surgeColumn heaveColumn pitchColumn longConditionColumn Note 94 Record tag Values for each of the following can be one of Left Right Hide Column of surge graph Column of heave graph Column of pitch graph Column of longitudinal condition number graph The values in this record will override values set based on longLatOption in Record 19d DRDC Atlantic TM 2011 307 Record 19f Column Options for Lateral Modes This record is optional if a plot is being specified latColumns swayColumn rollColumn yawColumn latConditionColumn 5 character strings latColumns Record tag Values for each of the following can be one of Left Right Hide swayColumn Column of sway graph rollColumn Column of roll graph yawColumn Column of yaw graph latConditionColumn Column of lateral condition number graph Note The values in this record will override values set based on longLatOption in Record 19d Record 19g End of Radiation Plot Data end radPlots 1 character string with 2 words Record 20 End of Input File for SM3DRadDif3 end SM3DRadDif3 1 character string with 2 words DRDC Atlantic TM 2011 307 95 B 2 Sample Input File
116. al Modes This record is optional if a plot is being specified longColumns surgeColumn pitchColumn 3 character strings longColumns Record tag Values for each of the following can be one of Left Right Hide surgeColumn Column of surge graph pitchColumn Column of pitch graph Note The values in this record will override values set based on longLatOption in Record 17d DRDC Atlantic TM 2011 307 147 Record 17f Column Options for Lateral Modes This record is optional if a plot is being specified latColumns swayColumn rollColumn yawColumn 4 character strings latColumns Record tag Values for each of the following can be one of Left Right Hide swayColumn Column of sway graph rollColumn Column of roll graph yawColumn Column of yaw graph Note The values in this record will override values set based on longLatOption in Record 17d Record 17g End of Slosh Tank Retardation Plot Data end sloshTankRetardPlots 1 character string with 2 words Record 18 End of Input File for SM3DRadSloshTank3 end SM3DRadSloshTank3 1 character string with 2 words 148 DRDC Atlantic TM 2011 307 D 2 Sample Input File for SM3DRadSloshTank3 begin SM3DRadSloshTank3 label Cube slosh tank 4 m x 4 m x 2m damping factor 0 05 wetPanelTankFileName cube4mWetPanelSloshTank bin sloshTankRadDBFileName cube4mSloshTankRadDB bin dampingFactor 0 05 2 8 hydroCompOptions 1 000 20 000 20 000 SourceGauss Gal
117. al source strengths defaults 0 0 and 10 Record 10d Lateral Mode Condition Number Limits This record is required if Record 10 has been used condLimitsLat condLimitsLat 1 character strings array of floats condLimitsLat Record tag condLimitsLat Array of lateral matrix condition number limits This array must be the same length as enFreqsLatLimits in Record 10c defaults 10 and 10 DRDC Atlantic TM 2011 307 141 Record 10e End of Condition Number Freguency Limits This record is reguired if Record 10 has been used end condLimits 2 character strings Record 11 Time Increment and Maximum Value for Sloshing Tank Retardation Forces tRetardIncMax tRetardInc tRetardMax 1 character string 2 floats tRetardIncMax Record tag tRetardInc Time increment for tank sloshing retardation forces s tRetardMax Maximum time for tank sloshing retardation forces s Record 12 Encounter Frequency Increment and Maximum Value for Integration of Sloshing Tank Retardation Functions enFreqIntegrateIncMax enFreglntegratelnc enFreqIntegrateMax 1 character string 2 floats enFreqIntegrateIncMax Record tag enFreqIntegrateInc Increment of encounter frequency for computation of retardation forces using integration of frequency domain coefficients enFreqIntegrateMax Maximum encounter frequency for computation of retardation forces using integration of frequency d
118. amera Settings This record is required if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above cam ViewAngleDeg Camera view angle deg Record 20e Panelled Tank Lighting Settings This record is optional if a plot is being specified lighting ambientLightIntensity directLightIntensity directLightHorAngleDeg directLight Vert AngleDeg 1 character string 3 floats lighting Record tag ambientLightIntensity Ambient light intensity default 0 5 direct LightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above default 45 deg DRDC Atlantic TM 2011 307 121 Record 20f Panel Tank Plot Options This record is required if a plot is being specified panelPlotOptions wetDryOption colourTable showStarboardOption smoothShadeOption 5 character strings panelPlotOptions Record tag wetDryOption Option for displacing wet and o
119. ation station 1 character string 1 float station Record tag station Station number for all offsets on hull line Station 0 is at the fore perpendicular Record 5d2 Stations for Hull Line Offsets Record 5d must be followed by either Record 5d1 or Record 5d2 stations stations 1 character string nOffsets floats stations Record tag stations Array of nOffset station numbers where nOffset is the number of offsets on the hull line Station 0 is at the fore perpendicular Record 5d3 Y Offsets for Hull Line yOffsets yOffsets 1 character string nOffsets floats yOffsets Record tag y Offsets Array of nOffset y offsets where nOffset is the number of offsets on the hull line Record 5d4 Z Offsets for Hull Line zOftsets zOffsets 1 character string nOffsets floats zOffsets Record tag zOffsets Array of nOffset z offsets relative to the baseline where nOffset is the number of offsets on the hull line Note Records 5d3 and 5d4 and Record 5d2 if used must contain data for the same number of offsets Record 5d5 End of Data for Hull Line end hullLine 1 character string with 2 words 64 DRDC Atlantic TM 2011 307 Record 5e End of Data for Patch end patch 1 character string with 2 words Record 6 End of Data for Patch Hull end patchHull3 1 character string with 2 words DRDC Atlantic TM 2011 307 65 A 3 Sample Input
120. ault HideStarboard Only port side of tank is shown Record 13g Patch Tank Line Thicknesses This record is optional if a plot is being specified lineThicknesses lineThickness edgeLineThickness 1 character string 2 integers lineThicknesses Record tag lineThickness Line thickness of patch tank lines default 3 0 edgeLineThickness Line thickness of lines along patch edges default 1 0 Record 13h End of Plot Data This record is required if Record 13 has been entered end patchLinePlots 1 character string with 2 words Record 14 Beginning of Patch Tank Surface Plot Data This record is optional begin patchSurfacePlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 14a to 14h giving plot parameters Record 14i must follow at the end of plot parameter data DRDC Atlantic TM 2011 307 115 Record 14a Patch Tank Surface Image File Name This record is reguired if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 14b Patch Tank Surface Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 14c
121. ce 6 with refinements to maneuvering forces given in Reference 7 ShipMo3D Version 3 0 introduces modelling of U tube tanks 8 and sloshing in tanks with free surfaces 9 Reference 10 gives validation results for Version 3 0 of ShipMo3D Section 2 of this report describes features that are new for Version 3 of ShipMo3D Section 3 gives an overview of creating ship models that can subsequently be used for motion predictions Section 4 describes coordinate systems used for motions and ship geometry Sections 5 6 7 8 and 9 describe the ShipMo3D applica tions SM3DPanelHull SM3DRadDif SM3DPanelSloshTank SM3DRadSloshTank and SM3DBuildShip which are used to build models of the ship hull geometry hull radiation and diffraction properties sloshing tank geometry sloshing tank radiation properties and ship including appendages Final conclusions are given in Section 10 Annexes at the end of the report give input file descriptions and sample input and output files for the ShipMo3D applications 2 New Features for ShipMo3D Version 3 ShipMo3D Version 3 supercedes Version 2 11 12 Version 3 includes several major enhancements and also has many minor code improvements DRDC Atlantic TM 2011 307 1 2 1 High Frequency Approximation for Evaluating Retardation Functions When computing wave radiation damping forces in the time domain retardation functions are used 3 The retardation functions are computed from wave radiation damping coe
122. ch as when the skeg is modelled as part of the ship hull DRDC Atlantic TM 2011 307 183 Record 16c10 Skeg Roll Damping Parameters This record is optional and can follow Record 16c8 If the record is not included then defaults are used skegDamp dragCoMethod wakeFraction rollVelocityRatio 2 character strings 2 floats skegDamp Record tag dragCoMethod Method for determining skeg roll drag coefficient Ikeda Ikeda s method default Constant Constant independent of roll amplitude and velocity The input drag coefficient is given in Record 16c11 SimplifiedKatoAmplitude Simplified Kato method with drag coefficient decreasing as roll amplitude increases SimplifiedKatoVelocity Simplified Kato method with drag coefficient decreasing as roll velocity increases AmplitudeDecay Drag coefficient decreasing as roll amplitude increases Input parameters are given in Record 16c12 VelocityDecay Drag coefficient decreasing as roll velocity increases Input parameters are given in Record 16c13 wakeFraction Influence of local flow effects on reducing flow velocity due to ship forward speed default 0 0 rollVelocityRatio Influence of local flow effects on flow velocity due to ship roll default 1 0 Record 16c11 Skeg Damping Drag Coefficient This record is required if dragCoMethod has been set to Constant in Record 16c10 skegDragCo dragCoRef 1 character string 1 floa
123. cord 21 Beginning of Panelled Hull Plot Data This record is optional begin panelPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 21a to 21h giving plot parameters Record 21i must follow at the end of plot parameter data Record 21a Panelled Hull Image File Name This record is reguired if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 21b Panelled Hull Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 21c Panelled Hull Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm 58 DRDC Atlantic TM 2011 307 Record 21d Panelled Hull Camera Settings This record is reguired if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left
124. cter string array of floats speeds Record tag speeds Array of ship speeds m s Record 13c Ship Speed Range in Knots One of Records 13a to 13f must be given speedKnotsRange speedKnotsMin speedKnotsMax speedKnotsInc 1 character string 3 floats speedKnotsRange Record tag speedKnotsMin Minimum ship speed knots speedKnotsMax Maximum ship speed knots speedKnotsInc Increment for ship speed knots DRDC Atlantic TM 2011 307 89 Record 13d Ship Speeds in Knots One of Records 13a to 13f must be given speedsKnots speedsKnots 1 character string array of floats speedsKnots Record tag speedsKnots Array of ship speeds knots Record 13e Froude Number Range One of Records 13a to 13f must be given FroudeRange froudeMin froudeMax froudelnc 1 character string 3 floats FroudeRange Record tag froudeMin Minimum Froude number froudeMax Maximum Froude number froudelnc Froude number increment Record 13f Ship Froude Numbers One of Records 13a to 13f must be given Froudes froudes 1 character string array of floats Froudes Record tag froudes Array of ship Froude numbers Record 14a Range of Sea Directions Relative to the Ship One of Records 14a or 14b must be given seaDirDegRange seaDirDegMin seaDirDegMax seaDirDegInc 1 character string 3 floats seaDirDegRange Record tag seaDirDegMin M
125. d 13c Patch Hull Surface Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm Record 13d Patch Hull Surface Camera Settings This record is required if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats Camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosVertAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above camViewAngleDeg Camera view angle deg DRDC Atlantic TM 2011 307 53 Record 13e Patch Hull Surface Lighting Settings This record is optional if a plot is being specified lighting ambientLightIntensity directLightIntensity directLightHorAngleDeg directLight VertAngleDeg 1 character string 3 floats lighting Record tag ambient LightIntensity Ambient light intensity default 0 5 directLightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for
126. d A R J M 1998 Seakeeping Ship Behaviour in Rough Weather Revised ed Gosport England A R J M Lloyd publisher 15 Malenica S Zalar M and Chen X B 2003 Dynamic Coupling of Seakeeping and Sloshing In Thirteeth International Offshore and Polar Engineering Conference Honolulu Hawaii 16 Newman J N 1989 Wave Effects on Vessels with Internal Tanks In Twentieth International Workshop on Water Waves and Floating Bodies pp 201 204 Oystese Norway 17 uo Colwell J L 1994 Motion Sickness Habituation in the Naval Environment DREA TM 94 211 Defence Research Establishment Atlantic 18 McTaggart K A 2000 SHIPOP2 An Updated Program for Computing Ship Operability in Waves and Wind DREA TM 2000 138 Defence Research Establishment Atlantic 19 Piegl L and Tiller W 1997 The NURBS Book 2nd ed Berlin Springer 20 Molin B Remy F Rigaud S and de Jouette C 2002 LNG FPSO s Frequency Domain Coupled Analysis of Support and Liquid Cargo Motions In International Maritime Association of the Mediterranean Conference Rethymnon Greece 21 Inoue S Hirano M and Kijima K 1981 Hydrodynamic Derivatives on Ship Manoeuvring International Shipbuilding Progress 28 321 112 125 22 Smith T C 1999 T ADC X Maneuvering in Waves Study Using FREDYN Report NSWCCD 50 TR 1999 038 NSWCCD 23 McTaggart K 2008 Active Roll Stabilization of a Coastal Naval V
127. d be modelled as part of the panelled ship hull and it could also be modelled as a static foil of zero added mass to obtain lift forces DRDC Atlantic TM 2011 307 179 Record 16b6 Static Foil Wake Fraction This record is optional If this record is not included then a default value is used wakeFraction wakeFraction 1 character string 1 float wakeFraction Record tag wakeFraction Influence of local flow effects on reducing flow velocity due to ship forward speed default 0 0 Record 16b7 Static Foil Lift and Drag Coefficients This record is optional If this record is not included then default values are used liftDragCo liftCoSlope dragCo 1 character string 2 floats liftDragCo Record tag liftCoSlope Lift curve slope 0C S da rad If this record is omitted then a default value is computed based on the foil aspect ratio dragCoNormal Drag coefficient for flow normal to the foil face default 1 17 Record 16b8 End of Static Foil Data This record must follow Record 16b4 or 16b7 end foil 1 character string with 2 words Record 16c Beginning of Skeg Data Records 16c to 16c14 are optional and can be repeated for each skeg or skeg pair begin skeg 1 character string with 2 words 180 DRDC Atlantic TM 2011 307 Record 16c1 Pair Option This record must follow Record 16c pairOption pairOption 1 character string with 2 words pair
128. d hullLine begin hullLine station 20 yOffsets 0 000 0 000 zOffsets 3 870 9 401 end hullLine end patch THH RR HERRIE R IR GR RR RR RR EEE RR RR RR RR IR begin patch label Deck normalRanges 0 1 0 1 0 1 0 1 0 9 1 0 begin hullLine station 1 0 yOffsets 0 zOffsets 12 2 end hullLine begin hullLine station 0 yOffsets 2 751 0 zOffsets 12 166 12 166 end hullLine begin hullLine station 1 DRDC Atlantic TM 2011 307 yOffsets 4 849 0 zOffsets 11 889 11 end hullLine begin hullLine station 2 yOffsets 5 942 0 zOffsets 11 613 11 end hullLine begin hullLine station 3 yOffsets 6 504 0 zOffsets 11 336 11 end hullLine begin hullLine station 4 yOffsets 6 878 0 zOffsets 11 060 11 end hullLine begin hullLine station 5 yOffsets 7 113 0 zOffsets 10 783 10 end hullLine begin hullLine station 6 yOffsets 7 301 0 zOffsets 10 507 10 end hullLine begin hullLine station 7 yOffsets 7 411 0 zOffsets 10 230 10 end hullLine begin hullLine station 8 yOffsets 7 478 0 889 613 336 060 783 507 230 zOffsets 9 954 9 954 end hullLine begin hullLine station 9 yOffsets 7 521 0 zOffsets 9 677 9 677 end hullLine begin hullLine station 10 74 DRDC Atlantic TM 2011 307 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 11 yOffsets 7 zOffsets 9 end hullLine begin hullLine station 12 yOffsets 7 zOffsets 9 end hullLine begin hullLine station
129. d must follow Record 16a pairOption pairOption 1 character string with 2 words pairOption Record tag pairOption Option for input of single bilge keel or pair of bilge keels Single Input given for a single bilge keel Pair Input is used to create a pair of bilge keels Input dimensions should be provided for the port bilge keel Record 16a2 Bilge Keel Label This record must follow Record 16a1 label label 2 character strings label Record tag label Label for bilge keel This can include spaces If pairOption is set to Pair in Record 16a1 then the port and starboard bilge keel labels will be prefixed with Port and Starboard respectively Record 16a3 Bilge Keel Key This record must follow Record 16a2 key key 2 character strings key Record tag key Key for bilge keel This should consist of a single word with no spaces If pairOption is set to Pair in Record 16a1 then the port and starboard bilge keel keys will be prefixed with Port and Starboard respectively Note that the key cannot be equal to All DRDC Atlantic TM 2011 307 173 Record 16a4 Bilge Keel Stations This record must follow Record 16a3 stations stations 1 character string array of floats stations Record tag stations Stations increasing for which bilge keel coordinates are given Record 16a5 Lateral Coordinates of Bilge Keel at Root This rec
130. dder deflection 9 5 Rudder Propeller Interaction Coefficients For rudders placed aft of propellers flow from propellers can significantly increase the effectiveness of the rudders This effect is modelled using rudder propeller interaction coefficients as described in Reference 7 which supercedes the treatment presented in Reference 6 The rudder propeller interaction coefficient represents the effective fraction of the rudder area that lies within the propeller slipstream For a rudder immediately behind a propeller with the rudder locating entirely within the propeller slipstream the rudder propeller interaction coefficient will approach its limiting value of 1 0 If a rudder is located away from the propeller slipstream then the rudder propeller interaction coefficient will approach zero 9 6 Azimuthing Propellers ShipMo3D can model azimuthing propellers which were introduced in Version 2 The treatment of azimuthing propellers is described in Reference 23 It should be noted ShipMo3D motion predictions for ships with azimuthing propellers haven t been validated yet with experimental ship motion data 32 DRDC Atlantic TM 2011 307 ShipMo3D uses the approach of Stettler Hover and Triantafyllou 24 for modelling the forces on an azimuthing propeller Figure 18 shows the forces acting on a repre sentative azimuthing propeller The propeller has an azimuthal deflection of 6 The effective incident flow velocity relative to the prope
131. dels bilge keels static foils e g propeller shaft brackets skegs and rudders If modelling of roll stabilizer fins is required then these can be input as additional rudders References 5 and 6 discuss treatment of appendage forces Bilge keels and skegs are considered to have long chord lengths with input dimensions provided at several longitudinal locations along the hull Static foils and rudders are considered to have short chord lengths with input dimensions provided at only a single longitudinal location Figure 16 shows an appendage attached to a hull The convention for dihedral angle is 0 for the appendage pointing to port and 90 for the appendage point upward Rudders and skegs typically have dihedral angles of 90 Port bilge keels typically have dihedral angles of approximately 45 and starboard bilge keels typically have dihedral angles of approximately 135 Figure 17 shows dimensions for a static foil or rudder where Croot is the root chord length ci is the tip chord length and s is the span When predicting lateral plane ship motions one of the greatest challenges is accurate prediction of viscous roll damping from bilge keels It is recommended that Ikeda s method 5 be used for predicting viscous bilge keel damping To simplify input and reduce the possibility of input errors the user can specify that input is being given for a pair of appendages The user then provides input data for only the port a
132. dralDeg Dihedral angle deg Record 16d5 Rudder Incident Flow Coefficients This record is optional If this record is not included then default values are used incFlowCo wakeFraction flowStraighteningCo 1 character string 2 floats incFlowCo Record tag wakeFraction Influence of local flow effects on reducing flow velocity due to ship forward speed default 0 0 flowStraighteningCo Coefficient for reducing the incident flow velocity component normal to the rudder due to flow straightening effects This coefficient typically has a value between 0 0 and 1 0 with a value of 1 0 indicating that the local normal flow velocity isn t influenced by the propeller hull or other effects default 0 6 For a vertical rudder most common case the flow straightening coefficient only influences the incident lateral flow velocity DRDC Atlantic TM 2011 307 187 Record 16d6 Rudder Lift and Drag Coefficients This record is optional If this record is not included then default values are used liftDragCo liftCoSlope liftCoMax dragCoSlope dragCoNormal 1 character string 4 floats liftDragCo liftCoSlope liftCoMax dragCoSlope dragCoNormal Record tag Lift curve slope 0C S da rad If this record is omitted then a default value is computed based on the foil aspect ratio Maximum value for lift coefficient CJ default 1 2 Drag curve slope 9079 0 a rad If this record is o
133. dsKnotsResist Array of ship speeds knots Record 14c Ship Froude Numbers for Resistance Coefficients One of Records 14a 14b or 14c must be given FroudesResist FroudesResist 1 character string array of floats FroudesResist Record tag FroudesResist Array of Froude numbers Record 14d Ship Resistance Option resistOption resistOption 2 character strings resistOption Record tag resistOption Option for computing ship resistance HoltropMennen Ship resistance is computed using the method of Holtrop and Mennen as described in Holtrop 27 This method is suitable for conventional monohull vessels including those having a bulbous bow InputResist Input ship resistance coefficients are read from Record 14g 166 DRDC Atlantic TM 2011 307 Record 14e Hull Dimensions for Computing Ship Resistance This record can optionally be included if resistOption is set to HoltropMennen in Record 14d If the record is omitted then values will be set to defaults based on the ship wetted geometry hullResist Dim draftMidResist beamResist blockCoResist waterplaneCoResist areaTransomResist areaMidshipsResist 1 character string 6 floats hullResist Dim Record tag draft MidResist Hull draft at midships m The default is draftBIMid from Record 8 beamResist Hull beam m The default is twice the maximum panel y value from the radiation and diffraction database file of
134. e frequency 3 000 rad s Response damping 0 800 fraction of critical Maximum dRPM dt 50 000 RPM s Maximum d2RPM dt2 0 000 RPM s 2 Maximum time step 0 100000 s End of propeller input Propeller keys and labels Key Label PortPropeller Port Propeller StarboardPropeller Starboard Propeller Rudder propeller interaction coefficients Rudder key Propeller key Interaction coefficient Rudder PortPropeller 0 500 Rudder StarboardPropeller 0 500 Azimuthing propeller input End of azimuthing propeller input U tube tank input End of U tube tank input Sloshing tank input End of sloshing tank input Plot output option NoPlots Option for computing RPMs from specified speeds RpmSpeed Number of propeller keys for determining RPM 1 Maximum allowable RPM 300 000 Time step for simulating ship speed 0 200 End time for simulating ship speed 300 000 Keys of propellers for determining RPM knots Ship speeds for computing RPM 228 All DRDC Atlantic TM 2011 307 5 000 10 000 15 000 20 000 25 000 30 000 Option for azimuthing propeller RPMs from specified speeds NoAziRpmSpeed eek HULL RADIATION AND DIFFRACTION DATABASE PROPERTIES gt Summary of data for hull radiation and diffraction computations Label Generic frigate Water density 1025 000 kg m3 Encounter frequencies rad s 0 100 0 200 0 300 0 400 0 500 0 600 0 700 0 900 1 000 1 100 1 200 1 300 1 400 1 500 1 700 1 800 1 900 2 000 2 400 2 50
135. e shown default HideStarboard Only port side of hull is shown Record 12g Patch Hull Line Thicknesses This record is optional if a plot is being specified lineThicknesses lineThickness edgeLineThickness 1 character string 2 integers lineThicknesses Record tag lineThickness Line thickness of patch hull lines default 3 0 edgeLineThickness Line thickness of lines along patch edges default 1 0 Record 12h End of Plot Data This record is required if Record 12 has been entered end patchLinePlots 1 character string with 2 words Record 13 Beginning of Patch Hull Surface Plot Data This record is optional begin patchSurfacePlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 13a to 13h giving plot parameters Record 13i must follow at the end of plot parameter data 52 DRDC Atlantic TM 2011 307 Record 13a Patch Hull Surface Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 13b Patch Hull Surface Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Recor
136. eGaussOption Option for using Gaussian quadrature from source for determining frequency dependent portion of Green function NoSourceGauss Centroid of source is used SourceGauss Multiple points on source are used default fieldGalerkinOption Option for using Galerkin method with multiple points on field panel for evaluating Green functions NoGalerkin Centroid of field panel is used Galerkin Multiple points on field panel are used default orderGauss Order of Gauss quadrature if used for source panel and or field panel Valid values are 1 single point per panel 2 4 points default and 3 9 points 86 DRDC Atlantic TM 2011 307 Record 10a Encounter Freguencies One of Record 10a or Record 10b must be given enFregs enFreqs 1 character string array of floats enFreqs Record tag enFreqs Array of encounter frequencies rad s Record 10b Encounter Frequency Range One of Record 10a or Record 10b must be given enFregRange enFreqMin enFreqMax enFreqInc 1 character string 3 floats enFreqRange Record tag enFreqMin Minimum encounter frequency rad s enFreqMax Maximum encounter frequency rad s enFreqInc Encounter frequency increment rad s Note enFreqInc must be set such that there are no more than 1000 encounter frequencies Record 11 Encounter Frequencies for Removal This record is optional If this Record is omitted then no encounter frequencie
137. ecord 16e Column Options for Longitudinal Modes This record is optional if a plot is being specified longColumns surgeColumn pitchColumn 5 character strings longColumns Record tag Values for each of the following can be one of Left Right Hide surgeColumn Column of surge graph pitchColumn Column of pitch graph longConditionColumn Column of longitudinal condition number graph Note The values in this record will override values set based on longLatOption in Record 16d Record 16f Column Options for Lateral Modes This record is optional if a plot is being specified latColumns swayColumn rollColumn yawColumn latConditionColumn 5 character strings latColumns Record tag Values for each of the following can be one of Left Right Hide swayColumn Column of sway graph rollColumn Column of roll graph yawColumn Column of yaw graph latConditionColumn Column of lateral condition number graph Note The values in this record will override values set based on longLatOption in Record 16d DRDC Atlantic TM 2011 307 145 Record 16g End of Slosh Tank Radiation Plot Data end sloshTankRadPlots 1 character string with 2 words Record 17 Beginning of Retardation Plot Data This record is optional begin sloshTankRetardPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records
138. ection of the ship Liang m widthTank Width in the lateral direction of the ship m heightTank Total height m 110 DRDC Atlantic TM 2011 307 Record 7a Dimensions of Tank Box with Narrow Middle Dimensions boxNarrowMiddleDimensions lengthTank widthTank heightTank lengthMiddleTank widthMiddleTank 1 character string 5 floats boxNarrowMiddleDimensions Record tag lengthTank Length along the longitudinal direction of the ship Liang M widthTank Width in the lateral direction of the ship m heightTank Total height m lengthMiddle Tank Length along the centreline of the ship This value must be less than lengthTank widthMiddleTank Lateral width at the lateral centre of the tank This value must be less than widthTank Record 7b Patch Tank Input File Name patchSloshTankInputFileName patchSloshTankInputFileName 2 character strings patchSloshTankInputFileName Record tag patchSloshTankInputFileName Name of input file with description of patch tank The format of the file is given in Section C 2 Record 8 Patch Tank Data File Name patchSloshTankDataFileName patchSloshTankDataFileName 2 character strings patchSloshTankDataFileName Record tag patchSloshTankDataFileName Name of file to be written with binary representation of patch tank DRDC Atlantic TM 2011 307 111 Record 9 Wet Patch Tank Data File Name wetPatchSloshTankDataFileName
139. efficient kt1 Thrust coefficient for advance coefficient 11 32 Second advance coefficient kt2 Thrust coefficient for advance coefficient 32 33 Third advance coefficient kt3 Thrust coefficient for advance coefficient j3 Note The thrust coefficient is evaluated by Kr kt0 ktjl Jpop ktj2 Jeep where Jprop is the propeller advance coefficient The coefficients kt0 ktj1 and ktj2 are evaluated by matching the input values given in this record DRDC Atlantic TM 2011 307 193 Record 17a8 Fixed Pitch Propeller Response Parameters This record must follow Record 17a6 or 17a7 propControlParam rpmMin rpmMax fregResponseRpm dampResponseRpm rpmVelMax rpmAccMax dtMax 1 character string 7 floats propControlParam Record tag rpmMin Minimum rudder RPM rpmMax Maximum rudder RPM fregResponseRpm Undamped response freguency of propeller controller rad s dampResponseRpm Damping of propeller controller as a fraction of critical damping rpm VelMax Maximum rate of change of propeller RPM RPM s If this value is set to 0 0 then the maximum rate of change unlimited rpmAccMax Maximum second deriviative of RPM with respect to time RPM s If this value is set to 0 0 then no limit is applied dtMax Maximum time increment for time stepping of propeller RPM If this value is set to 0 0 then time stepping is done using the same time increment as for ship motions Record 17a9 End of Data for Fixed
140. efficient decreasing as roll amplitude increases Input parameters are given in Record 16a12 VelocityDecay Drag coefficient decreasing as roll velocity increases Input parameters are given in Record 16a13 wakeFraction Influence of local flow effects on reducing velocity due to ship forward speed default 0 0 roll VelocityRatio Influence of local flow effects on flow velocity due to ship roll default 1 0 Record 16a11 Bilge Keel Drag Coefficient This record is required if dragCoMethod has been set to Constant in Record 16a10 bilgeKeelDragCo dragCoRef 1 character string 1 float bilgeKeelDragCo Record tag dragCoRef Drag coefficient 176 DRDC Atlantic TM 2011 307 Record 16a12 Bilge Keel Damping Amplitude Decay Parameters This record is reguired if dragCoMethod has been set to AmplitudeDecay in Record 16a10 bilgeKeelAmpDecay dragCoRef rollAmpRefDeg alphaDecayDragCo 1 character string 3 floats bilgeKeelAmpDecay Record tag dragCoRef Reference drag coefficient rollAmpRefDeg Reference roll amplitude deg alphaDecayDragCo Reference drag decay coefficient This value should be gt 0 0 Record 16a13 Bilge Keel Damping Velocity Decay Parameters This record is required if dragCoMethod has been set to VelocityDecay in Record 16a10 bilgeKeelVelDecay dragCoRef rollVelAmpRefDeg alphaDecayDragCo 1 character string 3 floats bilgeKeelVelDecay Reco
141. el representation of the dry hull surface which is required for non linear simulations that consider the variation of the ship wetted surface with time Ship hydrostatics and parameters for panel checking are included in output from SM3DPanelHull Section 5 describes SM3DPanelHull in greater detail The wet panelled hull produced by SM3DPanelHull is used as input for radiation and diffraction computations in SM3DRadDif SM3DRadDif produces a database file that can be used for subsequent ship motion computations The output from SM3DRadDif should ideally encompass all combinations of ship speed wave head ing and wave frequency that a ship will encounter Typical computations encompass ing all relevant combinations can require 2 3 hours however once a radiation and diffraction database has been produced it can be used for simulations in a variety of conditions Section 6 describes SM3DRadDif in greater detail SM3DPanelSloshTank creates a panel representation of the wetted surface of the interior of a tank containing fluid Output from SM3DPanelSloshTank can be used 4 DRDC Atlantic TM 2011 307 for subsequent sloshing force computations Section 8 describes SM3DRadSloshTank in greater detail The wet panelled tank interior produced by SM3DPanelSloshTank is used as input for sloshing radiation computations in SM3DRadSloshTank SM3DRadSloshTank produces a database file that can be used for subsequent ship motion computations The output from S
142. en dihedral angles for the starboard side are evaluated as 180 dihedralsDeg Record 16a9 Bilge Keel Inclusion of Added Mass Option This record is optional addedMassOption addedMassOption 2 character strings addedMassOption Record tag addedMassOption Option for including bilge keel added mass IncludeAddedMass added mass is included in bilge keel computations default ExcludeAddedMass added mass is excluded in bilge keel computations This option is intended to be used only in rare cases when the bilge keel added mass is already modelled elsewhere such as when the bilge keel is modelled as part of the ship hull DRDC Atlantic TM 2011 307 175 Record 16a10 Bilge Keel Roll Damping Parameters This record is optional and can follow Record 16a8 If the record is not included then defaults are used bilgeKeelDamp dragCoMethod wakeFraction rollVelocityRatio 2 character strings 2 floats bilgeKeelDamp Record tag dragCoMethod Method for determining bilge keel roll drag coefficient Ikeda Ikeda s method default Constant Constant independent of roll amplitude and velocity The input drag coefficient is given in Record 16a11 SimplifiedKatoAmplitude Simplified Kato method with drag coefficient decreasing as roll amplitude increases SimplifiedKatoVelocity Simplified Kato method with drag coefficient decreasing as roll velocity increases AmplitudeDecay Drag co
143. ent Below Which Incident Flow Angle is Ignored This record is optional If it is omitted then a default value of 0 001 will be used advanceCoSmall advanceCoSmall 1 character string 1 float advanceCoSmall Record tag advanceCoSmall Advance coefficient below which incident flow angle is ignored 200 DRDC Atlantic TM 2011 307 Record 19a12 Azimuthing Propeller RPM Controller Parameters This record must follow Record 19a10 or 19a11 rpmControlParam rpmMin rpmMax rpmSpeedGain rpmAccGain rpmFreqResponse rpmDampResponse rpmVelMax rpmAccMax rpmDtMax 1 character string 9 floats rpmControlParam rpmMin rpmMax rpmFreqResponse rpmDampResponse rpm VelMax rpmAccMax rpmDtMax Record tag Minimum propeller RPM Maximum propeller RPM Undamped response frequency of propeller controller rad s Damping of propeller controller as a fraction of critical damping Maximum rate of change of propeller RPM RPM s If this value is set to 0 0 then the maximum rate of change is unlimited Maximum second deriviative of RPM with respect to time RPM s If this value is set to 0 0 then no limit is applied Maximum time increment for time stepping of propeller RPM If this value is set to 0 0 then time stepping is done using the same time increment as for ship motions DRDC Atlantic TM 2011 307 201 Record 19a13 Azimuthing Propeller Deflection Controller Parame ters This
144. erkin 2 enFreqRange 0 05 10 0 05 begin condLimits enFreqsLongLimits O 10 condLimitsLong 99000 99000 enFreqsLatLimits 0 10 condLimitsLat 99000 99000 end condLimits tRetardIncMax 0 1 50 enFreqIntegrateIncMax 0 05 10 tDelayMaxCorrectionOption TRetardMaxCorrection outRetardOption NoDutRetard plotOutOption NoPlots end SM3DRadSloshTank3 DRDC Atlantic TM 2011 307 149 D 3 Sample Output File for SM3DRadSloshTank3 Program SM3DRadSloshTank3 ShipMo3D 3 0 Version 3 0 release 5 October 2011 Time November 09 11 8 53 27 AM Run label Cube slosh tank 4mx4mx 2m damping factor 0 05 ECHO OF USER INPUT Input wet panel file name cube4mWetPanelSloshTank bin Label Cube slosh tank 4 m X 4 m X 2 m Created November 09 11 8 31 31 AM Version ShipMo3D 3 0 Version 3 0 release 5 October 2011 Class ShipMo3D Sloshing WetPanelSloshTankInterior Sloshing tank radiation database file name cube4mSloshTankRadDB bin Fluid flow damping factor peak 0 050 Lower encounter frequency for peak 2 000 Upper encounter frequency for peak 8 000 Parameters for computing hydrodynamic coefficients input Green function transition frequency b 1 000 rad s R threshold for exact integration 20 0 R1 threshold for exact integration 20 0 Source panel Gauss option SourceGauss Field panel Galerkin option Galerkin Order for Gauss quadrature 12 Encounter frequency range Minimum 0 050 rad s Maximum 10 000 rad
145. erpendicular This value is typically 20 0 Note The values in this record must agree with the values used for the wet panel hull file wetPanelFileName Values are considered to be in agreement when they are within a tolerance of 0 001 m for length and 0 001 for the station of the aft perpendicular The output file from SM3DPanelHull3 gives the values of the above parameters 84 DRDC Atlantic TM 2011 307 Record 7 Ship Loading Condition load Condition string 4 floats loadCondition waterDensity draftB1Mid trimBlStern shipKG Note waterDensity draftBIMid trimBlStern shipKG 1 character Record tag Water density kg m Draft of baseline at midships m Trim of baseline by stern m Height of centre of gravity above baseline m The values in this record must agree with the values used for the wet panel hull file wetPanelFileName Values are considered to be in agreement when they are within a tolerance of 0 001 kg m for density and 0 001 m for draft trim and height of CG The output file from SM3DPanelHull3 gives the values of the above parameters Record 8 Ship Radii of Gyration for Non dimensional Hydrodynamic Coefficients This record is optional If the record is not included then default values will be used eyRadiiNom rollGyradius pitchGyradius yawGyradius 1 character string 3 floats gyRadiiOut rollGyradius pitchGyradius yawGyradius Note Reco
146. essel Using Azimuthing Propellers In Eighteenth International Offshore and Polar Engineering Conference ISOPE 2008 Vancouver 24 sr Stettler J W Hover F S and Triantafyllou M S 2004 Preliminary Results of Testing of the Dynamics of an Azimuthing Podded Propulsor Relating to Vehicle Manoeuvring In First International Conference on Technological Advances in Podded Propulsion T POD Newcastle UK 40 DRDC Atlantic TM 2011 307 25 Brandner P and Renilson M 1998 Interaction Between Two Closely Spaced Azimuthing Thrusters Journal of Ship Research 42 1 15 32 26 Islam M F Veitch B Akinturk A Bose N and Liu P 2007 Experiments with Podded Propulsors in Static Azimuthing Conditions In Proceedings of the Eighth Canadian Marine Hydromechanics and Structures Conference St John s Newfoundland 27 Holtrop J 1984 A Statistical Re analysis of Resistance and Propuslion Data International Shipbuilding Progress 31 363 272 276 DRDC Atlantic TM 2011 307 41 Symbols and Abbreviations Bmaz CB CDa Coy ch Cw Croot Gra D Daziprop Die E FN FT proviprop poripro Frerossy Frhull eddy Fr presist g ha h fluid 42 ship added mass matrix lateral profile area of hull section i hull wetted surface area ship damping matrix ship maximum beam hull block coefficient hull resistance coefficient hull cross flow drag coefficient hull eddy coeffic
147. f azimuthing propeller keys given in Record 30b rpmAziMax Maximum propeller RPM dtMaxAziRpm Time step size s for simulation of motions A value of 0 2 s is recommended for full scale ships tEndAziRpm End time for simulation of motions to determine final ship speed A value of 300 s is recommended for full scale ships Record 30b Azimuthing Propeller Keys for Computing Ship RPM Given Speed This record is required if aziRpmSpeedOption is set to aziRpmSpeed in Record 30 keysAziPropRpm keysAziPropRpm 1 character string nAziPropKey integers keysAziPropRpm Record tag keysAziPropRpm Keys of azimuthing propellers that are rotating when determining ship speed If all propellers are running then nAziPropKey in Record 30a can be set to 1 and the azimuthing propeller key can be set to a value of All DRDC Atlantic TM 2011 307 217 Record 31a Ship Speeds in m s for Determining Azimuthing Pro peller RPM This record or Record 31b is required if aziRpmSpeedOption is set to aziRpmSpeed in Record 30 speedsAziRpm speedsAziRpm 1 character string array of floats speedsAziRpm Record tag speedsAziRpm Array of ship speeds m s at which azimuthing propeller RPM values are determined Record 31b Ship Speeds in Knots for Determining RPM This record or Record 31a is required if aziRpmSpeedOption is set to aziRpmSpeed in Record 30 speedsKnotsAziRpm speedsKnotsAziRpm
148. fficients evaluated in the frequency domain ShipMo3D Version 3 uses the following high frequency approximation for damping coefficients when computing retardation functions within SM3DBuildShip Biy We Bu exp 2w wi 2 for we gt we 1 e where B is frequency domain damping for motion modes 7 and j we is wave en counter frequency and wi is the highest encounter frequency for damping coefficients used for computing retardation functions The above approximation helps to elimi nate oscillatory behaviour of retardation functions at the maximum frequency w The following high frequency approximation from Nam et al 13 was originally con sidered for implementation in ShipMo3D ee Bul But SE tora gt ut 2 Equation 1 provides faster decay of damping coefficients at higher frequencies and appears to give better modelling of actual behaviour Note that Equations 1 and 2 give similar behaviour of the variation of damping coefficients with encounter frequency when encounter frequency we is approximately equal to the maximum fre quency wi 2 2 Modelling of U tube Tanks for Roll Stabilization ShipMo3D can now model U tube tanks for roll stabilization Hydrodynamic forces are evaluated using the method of Lloyd 14 with ShipMo3D implementation de scribed in Reference 8 Dimensions for U tube tanks are given as input to SM3D BuildShip 2 3 Modelling of Sloshing in Tanks with Free Surfaces ShipMo3D can now
149. ficient Kr is a function of the advance coefficient Jprop which is given by U 1 Wprop S 22 Te Nprop Dprop where Wprop is the propeller wake fraction The following quadratic function is used to model the relationship between propeller thrust coefficient Kr and advance coefficient DRDC Atlantic TM 2011 307 31 den Kr NN Ky E Ky J prop h Ky ER 23 where K KZ and K4 are specified coefficients The user can provide K K and Ki as input values or these values can be computed based on 3 input pairs of Jprop and Kr Jprop To simplify input and reduce the possibility of input errors the user can specify that input is being given for a pair of propellers The user then provides input data for only the port propeller SM3DBuildShip then generates a port propeller first and a starboard propeller second The propeller control system is modelled very similarly to the rudder control system with the rate of change of propeller RPM being modelled as follows RPM dhew RPMEP RPM 9Capu wapu RPM 24 where RPM is the second derivative with respect to time of propeller RPM wrpm is the RPM response natural frequency RPM is command propeller RPM RPM is propeller RPM Crpy is RPM response damping and RPM is the first derivative with respect to time of propeller RPM The user can specify a maximum allowable time step for simulation of propeller RPM in a manner similar to that used for ru
150. for SM3DRadDif3 begin SM3DRadDif3 label Generic frigate wetPanelFileName genFrigWetPanelHull bin radDifDBFileName genFrigRadDifDB bin lengthData 120 000 20 000 loadCondition 1025 000 4 200 0 000 6 000 hydroCompOptions 1 5 1000000 0 20 0 20 0 SourceGauss Galerkin 2 enFreqRange 0 1 6 0 1 begin condLimits enFreqsLongLimits 0 6 condLimitsLong 3000 3000 enFreqsLatLimits 0 6 condLimitsLat 3000 3000 end condLimits speedKnotsRange 0 40 5 seaDirDegRange 0 180 15 waveFregRange 0 1 2 0 1 diffracOption diffrac FroudeRadCo 0 2 plotOutOption NoPlots end SM3DRadDif3 96 DRDC Atlantic TM 2011 307 B 3 Sample Output File for SM3DRadDif3 Program SM3DRadDif3 ShipMo3D 3 0 Version 3 0 release 5 October 2011 Time November 08 11 4 40 50 PM Run label Generic frigate xx ECHO OF USER INPUT Input wet panel file name genFrigWetPanelHull bin Label Generic frigate Created November 08 11 4 40 16 PM Version ShipMo3D 3 0 Version 3 0 release 5 October 2011 Class ShipMo3D HullGeom WetPanelHull Radiation and diffraction database file name genFrigRadDifDB bin Ship Length Data Length between perpendiculars 120 000 m Station of aft perpendicular 20 000 Water density 1025 000 kg m3 Draft of baseline at midships 4 200 m Trim of baseline by stern 0 000 m Height of CG above baseline KG 6 000 m 5 644 m default 30 000 m default 30 000 m default Roll gyradius Pitch gyradius Yaw gyradius
151. g U tube tanks and sloshing tanks Significance of Results ShipMo3D continues to be suitable for providing predic tions of ship motions in waves These simulations can be used for various applications including engineering analysis operations analysis and training Future Plans ShipMo3D Version 3 will be incorporated into simulations modelling naval platform systems using the High Level Architecture DRDC Atlantic TM 2011 307 iii Sommaire ShipMo3D Version 3 0 User Manual for Creating Ship Models Kevin McTaggart DRDC Atlantic TM 2011 307 R amp D pour la d fense Canada Atlantique d cembre 2011 Introduction Les mouvements de navires ont une influence sur le rendement et la s curit du personnel et des systemes navals Par cons quent les pr visions des mou vements de navires sont souvent utilis es en appui la conception et a Vexploitation des navires Les pr visions du domaine fr quentiel sont efficaces pour l valuation et conviennent aux navires qui naviguent vitesse continue et font cap dans des voies maritimes moyennement occup es L analyse du domaine temporel est requise pour mod liser les mouvements si un navire man uvre librement ou dans une voie maritime tr s occup e R sultats principaux ShipMo3D est une biblioth que objet avec applications utilisateur connexes permettant de pr voir les mouvements de navires en eau calme et dans les vagues Les pr visions des mouvements sont disp
152. g of Fixed Pitch Propeller This record is optional and must follow Record 17 Seguences of Records 17a to 17a9 can be entered to described an arbitrary number of fixed pitch propellers begin fixedPitchPropeller 1 character string with 2 words Record 17a1 Pair Option This record must follow Record 17a pairOption pairOption 1 character string with 2 words pairOption Record tag pairOption Option for input of single propeller or pair of propellers Single Input given for a single propeller Pair Input is used to create a pair of propellers Input dimensions should be provided for the port propeller Record 17a2 Fixed Pitch Propeller Label This record must follow Record 17a1 label label 2 character strings label Record tag label Label for fixed pitch propeller This can include spaces If pairOption is set to pair in Record 17a1 then the port and starboard propeller labels will be prefixed with Port and Starboard respectively Record 17a3 Fixed Pitch Propeller Key This record must follow Record 17a2 key label 2 character strings key Record tag key Key for fixed pitch propeller This should consist of a single word with no spaces If pairOption is set to Pair in Record 17a1 then the port and starboard propeller keys will be prefixed with Port and Starboard respectively Note that the key cannot be equal to All
153. gin patchHull3 1 character string with 2 words Record 2 Patch Hull Label label label 2 character strings label Record tag label Label for patch hull This can include spaces Record 3 Length Data lengthData Ipp stationAP 1 character string 2 floats lengthData Record tag lpp Ship length between perpendiculars m stationAP Station number of the aft perpendicular This value is typically 20 0 Record 4 Scaling Parameters for Offsets This record is optional scaleY Z yScale zScale 1 character string 2 floats scaleY Z Record tag yScale Scale factor for input y offsets A default of 1 0 is used if this record is omitted zScale Scale factor for input z offsets A default of 1 0 is used if this record is omitted Record 5 Beginning of Data for Hull Patch This record is followed by repeated series of Records 5a to 5d5 finishing with Record 5e These groups of records can be repeated to describe an arbitrary number of patches encompassing the ship hull begin patch 1 character string with 2 words 62 DRDC Atlantic TM 2011 307 Record 5a Patch Label label label 2 character strings label Record tag label Label for patch This can include spaces Record 5b Normal Ranges for Checking of Hull Panelling normalRanges nxMinLimit nxMaxLimit nyMinLimit nyMaxLimit nzMinLimit nzMaxLimit 1 character string 6 floats
154. guired dispLCG dispTonnesInput distanceFPCGInput draftBIMidGuess trimBlSternGuess tolDisp tolLcg 1 character string 6 floats dispLCG Record tag dispTonnesInput Displacement tonnes This value should include the influence of fluid mass present in tanks distanceFPCGInput Distance from fore perpendicular to LCG m This value should include the influence of fluid mass present in tanks draft BIMidGuess Guess for draft of baseline at midships m trimBlSternGuess Guess for trim of baseline by stern m tolDisp Non dimensional tolerance on displacement A value of 107 is recommended tolLcg Non dimensional tolerance on distance of LCG aft of fore perpendicular A value of 107 is recommended Record 19 Height of Centre of Gravity Above Baseline shipKG shipKG 1 character string 1 float shipKG Record tag shipKG Height of centre of gravity above baseline m This value should include the influence of fluid mass present in tanks Record 20 Hull Panel Parameters panelParameters areaPanelLimit aspectPanelLimit deltaNormalPanelLimitDeg 1 character string 3 floats panelParameters Record tag areaPanelLimit Limit on area for hull panels m aspectPanelLimit Limiting hull panel aspect ratio A value of 3 0 is recommended deltaNormalPanelLimitDeg Limit on normal angle between adjacent panels A value of 15 is recommended DRDC Atlantic TM 2011 307 57 Re
155. he aft perpendicular This value is typically 20 0 Note The values in this record must agree with the values used for the radiation and diffraction database file radDifDBFileName Values are considered to be in agreement when they are within a tolerance of 0 001 m for length and 0 001 for the station of the aft perpendicular The output file from SM3DPanelHull3 gives the values of the above parameters Record 8 Load Condition loadCondition waterDensity draftBlMid trimBlStern shipKG 1 character string 4 floats 1 waterDensity Record tag waterDensity Water density kg m5 draftBlMid Draft of baseline at midships m trimBlStern Trim of baseline by stern m shipKG Height of centre of gravity above baseline m This value should include the influence of fluid mass present in tanks Note The values in this record must agree with the values used for the radiation and diffraction database file radDifDBFileName Values are considered to be in agreement when they are within a tolerance of 0 001 kg m for density and 0 001 m for draft trim and height of CG DRDC Atlantic TM 2011 307 163 Record 9 Correction to Metacentric Height correctionGM correctionGM 1 character string 1 float correctionGM Record tag correctionGM Correction to metacentric height m A negative value can be used to model tank free surface effects U tube tanks Records 20 to 23a and sloshing tanks Records 2
156. hing tank Run time Several seconds Default input file panelSloshTank3 inp Default output file panelSloshTank3 out Sample files and file format Annex C Other required input Patch sloshing tank exterior file developed by user This file is only required if the sloshing tank has a complex shape Like all ShipMo3D applications SM3DPanelSloshTank reads user input from a file The format of the main SM3DPanelSloshTank input file is given in Annex C 1 Fig ure 12 shows dimensions for a simple sloshing tank with a rectangular cross section SM3DPanelSloshTank can easily model a box shaped sloshing tank or a tank with a narrow middle see Figure 13 using minimal input For modelling of more complex tank geometries SM3DPanelSloshTank can read data for a patch representation of the tank which is similar to the patch representation of a hull read by SM3DPanelHull Annex C 2 describes the format of the patch sloshing tank file To simplify creation of the patch sloshing tank input file the file uses a geometric convention to specify the exterior of the sloshing tank i e normal vectors point outward from the sloshing tank which is the same convention as used for a patch hull file SM3DPanelSloshTank then performs the required conversion to obtain the geometries of panels representing the interior of the tank Guidelines for panelling and the ship hull see Section 5 are applicable to panelling of a sloshing tank It is recommended that
157. hip Plot Camera Settings This record is reguired if a plot is being specified camera camPosHorAngleDeg camPosVertAngleDeg camViewAngleDeg 1 character string 3 floats camera Record tag camPosHorAngleDeg Horizontal position deg of camera relative to ship 0 deg for front 90 deg for left camPosHorAngleDeg Vertical position deg of camera relative to ship 0 deg for horizontal 90 deg for above cam ViewAngleDeg Camera view angle deg Record 26e Ship Plot Lighting Settings This record is optional if a plot is being specified lighting ambient LightIntensity directLightIntensity directLightHorAngleDeg directLight VertAngleDeg 1 character string 3 floats lighting Record tag ambientLightIntensity Ambient light intensity default 0 5 directLightIntensity Direct light intensity default 1 0 directLightHorAngleDeg Horizontal position deg of direct light source relative to ship 0 deg for front 90 deg for left default 0 deg directLightVertAngleDeg Vertical position deg of direct light source relative to ship 0 deg for horizontal 90 deg for above default 45 deg 210 DRDC Atlantic TM 2011 307 Record 26f Ship Plot Options This record is required if a plot is being specified shipPlotOptions colourTable showStarboardOption smoothShadeOption 4 character strings shipPlotOptions Record tag colour Table Colour table Available tables are BlueGreenRed
158. his record is not included then all integral gains are set to 0 0 deflectIntGains surgeIntGain swayIntGain heavelntGain rollIntGain pitchIntGain yawIntGain 1 character string 6 floats deflectIntGains Record tag surgelntGain Surge integral gain deg m s This value should be 0 0 swayIntGain Sway integral gain deg m s This value should be 0 0 heavelntGain Heave integral gain deg m s This value is typically 0 0 rollIntGain Roll integral gain deg deg s This value is typically 0 0 unless rudder stabilization is desired pitchIntGain Pitch integral gain deg deg s This value is typically 0 0 yawIntGain Yaw integral gain deg deg s For a ship using a downward oriented azimuthing propeller for course keeping this value is typically lt 0 0 Record 19a17 Azimuthing Propeller Deflection Controller Integration Time This record must be included after Record 19a16 if Record 19a16 is included deflectIntegrationTime deflectIntegrationTime 1 character string 1 float deflectIntegrationTime Record tag deflectIntegration Time Integration time for deflection controller s Record 19a18 End of Data for Azimuthing Propeller This record must be given at the end of input data for an azimuthing propeller end aziPropeller 1 character string with 2 words Record 19b End of Data for Azimuthing Propellers end aziPropellers 1 character string with 2 word
159. ient hull waterplane coefficient root chord length tip chord length influence matrix for flow normal velocities from source strengths azimuthing propeller diameter propeller diameter influence matrix for hull flow potentials from source strengths azimuthing propeller force normal to propeller axis azimuthing propeller thrust force along propeller axis azimuthing propeller force in surge direction azimuthing propeller force in sway direction cross flow drag vector hull eddy roll damping force propulsion force vector resistance force vector gravitational acceleration height of U tube tank central duct height of fluid in sloshing tank or U tube tank DRDC Atlantic TM 2011 307 hi hi Jaziprop Jprop Kyn Kr KO K KJ KG Kp k ki L Liniddie Li fl ny Naziprop prop RPMPP RPA T RPM RPM height of U tube tank height of sloshing tank azimuthing propeller advance coefficient based on total velocity propeller advance coefficient based on forward velocity azimuthing propeller normal force coefficient propeller thrust coefficient propeller thrust quadratic coefficients vertical centre of gravity relative to baseline rudder autopilot derivative gain for motion mode j rudder autopilot integral gain for motion mode j rudder autopilot proportional gain for motion mode j ship length between perpendiculars length of narrow middle of sloshing tank length of sloshing tank linear yaw yaw maneuver
160. in deg m This value is typically 0 0 rollGain Roll gain deg deg This value is typically 0 0 unless roll stabilization is desired pitchGain Pitch gain deg deg This value is typically 0 0 yawGain Yaw gain deg deg For a ship using a downward oriented azimuthing propeller for course keeping this value is typically lt 0 0 Record 19a15 Azimuthing Propeller Deflection Controller Velocity Gains This record is optional and can follow Record 19a14 If this record is not included then all velocity gains are set to 0 0 deflect VelGains surgeVelGain swayVelGain heaveVelGain rollVelGain pitchVelGain yawVelGain 1 character string 6 floats deflect VelGains Record tag surgeVelGain Surge velocity gain deg m s This value should be 0 0 sway VelGain Sway velocity gain deg m s This value should be 0 0 heaveVelGain Heave velocity gain deg m s This value is typically 0 0 rollVelGain Roll velocity gain deg deg s This value is typically 0 0 unless stabilization is desired pitchVelGain Pitch velocity gain deg deg s This value is typically 0 0 yaw VelGain Yaw velocity gain deg deg s For a ship with using a downward oriented azimuthing propeller for course keeping this value is typically lt 0 0 DRDC Atlantic TM 2011 307 203 Record 19a16 Azimuthing Propeller Deflection Controller Integral Gains This record is optional and can follow Record 19a14 or 19a15 If t
161. ing force coefficient yaw velocity dependent nonlinear yaw yaw hull force coefficient sway velocity dependent nonlinear yaw yaw hull force coefficient number of hull longitudinal sections linear yaw sway maneuvering force coefficient yaw velocity dependent nonlinear yaw sway hull force coefficient normal component j for vector pointing outward from ship normal vector pointing into sloshing tank fluid azimuthing propeller speed in revolutions per second propeller speed in revolutions per second propeller RPM time derivative of propeller RPM second derivative with respect to time of propeller RPM command propeller RPM DRDC Atlantic TM 2011 307 43 T44 T55 T66 taziprop torop U Vaziprop VF luid cross U Waziprop Wa W middle Wprop Wr Wiank L Y 2 Uf H Y Yy vlr Y U L Y WU Zbl 44 roll radius of gyration pitch radius of gyration yaw radius of gyration hull wetted surface foil span peak wave period zero crossing period average wave period azimuthing propeller thrust deduction coefficient propeller thrust deduction coefficient ship forward speed azimuthing propeller total incident flow velocity volume of fluid in sloshing tank cross flow velocity azimuthing propeller wake fraction width of U tube tank central duct width of narrow middle of sloshing tank propeller wake fraction width of U tube tank side reservoir width of sloshing tank coordinates in tran
162. inimum sea direction relative to ship deg seaDirDegMax Maximum sea direction relative to ship deg seaDirDegInc Increment sea direction relative to ship deg 90 DRDC Atlantic TM 2011 307 Record 14b Sea Directions Relative to the Ship One of Records 14a or 14b must be given seaDirsDeg seaDirsDeg 1 character string array of floats seaDirsDeg Record tag seaDirsDeg Array of sea directions relative to the ship deg Record 15a Range of Incident Wave Frequencies One of Records 15a or 15b must be given waveFregRange waveFreqMin waveFreqMax waveFreqInc 1 character string 3 floats waveFreqRange Record tag waveFreqMin Minimum incident wave frequency rad s waveFreqMax Maximum incident wave frequency rad s waveFreqInc Increment for incident wave frequency rad s Record 15b Incident Wave Frequencies One of Records 15a or 15b must be given waveFreqs waveFreqs 1 character string array of floats waveFreqs Record tag waveFreqs Array of increasing incident wave frequencies rad s Record 16 Option for Wave Diffraction Computations diffracOption diffracOption 2 character strings diffracOption Record tag diffracOption Option for completing diffraction computations Diffrac Diffraction computations will be completed NoDiffrac No diffraction computations DRDC Atlantic TM 2011 307 91 Record 17a Ship Speed in m s for O
163. ion The input record yOffsets gives lateral offsets which should all be gt 0 0 because only the port side of the hull is modelled The input record zOffsets gives vertical offsets relative to the baseline The baseline is a straight line and typically represents the elevation of the keel for a substantial portion of a ship Figure 8 shows a profile of a hull patch representing the main portion of a ship hull The patch consists of 6 hull lines with the first hull line index 0 representing the foremost point on the ship For correct evaluation of hull surface normals it is essential that hull lines be arranged in the direction indicated by Figure 9 To assist with correct panelling of the hull surface from patch data user input for a patch DRDC Atlantic TM 2011 307 11 Figure 5 Patch Hull Lines of Generic Frigate Figure 6 Patch Hull Surfaces of Generic Frigate DRDC Atlantic TM 2011 307 12 i n l Zbl i n Y Design Waterline f y Baseline Figure 7 Hull Line within Patch Hull File View from Aft includes valid ranges of normal components ShipMo3D uses a convention of hull normals pointing outward from the hull In summary the following should be observed when creating a patch hull file e For non horizontal hull lines the order of offset points should go from lower to higher elevation e The order of successive hull lines must be given to satisfy the hull normal convention
164. ion for input of single azimuthing propeller or pair of azimuthing propellers Single Input given for a single azimuthing propeller Pair Input is used to create a pair of azimuthing propellers Input dimensions should be provided for the port azimuthing propeller DRDC Atlantic TM 2011 307 195 Record 19a2 Azimuthing Propeller Label This record must follow Record 19a1 label label 2 character strings label Record tag label Label for azimuthing propeller This can include spaces If pairOption is set to Pair in Record 19a1 then the port and starboard azimuthing propeller labels will be prefixed by Port and Starboard respectively Record 19a3 Azimuthing Propeller Key This record must follow Record 19a2 key key 2 character strings key Record tag key Key for azimuthing propeller This should consist of a single word no spaces If pairOption is set to Pair in Record 19a1 then the port and starboard azimuthing propeller keys will be appended with Port and Starboard respectively Note that the key cannot be equal to All 196 DRDC Atlantic TM 2011 307 Record 19a4 Azimuthing Propeller Dimensions This record must follow Record 19a3 dimen station yRoot zBlRoot span chordRoot chord Tip dihedralDeg xOffset diameter 1 character string 9 floats dimen Record tag station Station yRoot Lateral offset of root m port
165. itchGain yawGain Record tag Surge gain deg m This value should be 0 0 Sway gain deg m This value should be 0 0 Heave gain deg m This value is typically 0 0 Roll gain deg deg This value is typically 0 0 unless rudder roll stabilization is desired Pitch gain deg deg This value is typically 0 0 Yaw gain deg deg For a typical ship with a downward oriented rudder this value is typically lt 0 0 Record 16d9 Rudder Autopilot Velocity Gains This record is optional and can follow Record 16d8 If this record is not included then all velocity gains are set to 0 0 velGains surgeVelGain sway VelGain heaveVelGain roll VelGain pitchVelGain velGains surgeVelGain sway VelGain heaveVelGain roll VelGain pitchVelGain yawVelGain yawVelGain 1 character string 6 floats Record tag Surge velocity gain deg m s This value should be 0 0 Sway velocity gain deg m s This value should be 0 0 Heave velocity gain deg m s This value is typically 0 0 Roll velocity gain deg deg s This value is typically 0 0 unless rudder stabilization is desired Pitch velocity gain deg deg s This value is typically 0 0 Yaw velocity gain deg deg s For a typical ship with a downward oriented rudder this value is typically lt 0 0 DRDC Atlantic TM 2011 307 189 Record 16d10 Rudder Autopilot Integral Gains This record is optional and can follow Record 16d8 or 16d
166. l label 2 character strings label Record tag label Label for patch sloshing tank This can include spaces Record 3 Dimension Data dimensions length width height 1 character string 3 floats dimensions Record tag length Tank length m width Tank width m height Tank height m Record 4 Scaling Parameters for Offsets This record is optional scaleX YZ xScale yScale zScale 1 character string 3 floats scaleX YZ Record tag xScale Scale factor for input x offsets A default of 1 0 is used if this record is omitted yScale Scale factor for input y offsets default of 1 0 is used if this record is omitted zScale Scale factor for input z offsets A default of 1 0 is used if this record is omitted 124 DRDC Atlantic TM 2011 307 Record 5 Beginning of Data for Tank Patch This record is followed by repeated series of Records 5a to 5d5 finishing with Record 5e These groups of records can be repeated to describe an arbitrary number of patches encompassing the ship tank begin patch 1 character string with 2 words Record 5a Patch Label label label 2 character strings label Record tag label Label for patch This can include spaces Record 5b Normal Ranges for Checking of Tank Panelling normalRanges nxMinLimit nxMaxLimit nyMinLimit nyMaxLimit nzMinLimit nzMaxLimit 1 character string 6 floats normalRanges
167. l of fluidplane area Y 2 21 250 m4 Mass gyradii based on vertical origin at waterplane Roll gyradius 1 628 m Pitch gyradius 1 628 m Yaw gyradius 1 628 m DRDC Atlantic TM 2011 307 133 Calculated properties for checking of mesh Closure error sum of area nx 0 000000 m2 Closure error approx front area 0 000000 Profile area 8 000000 m2 Volumes based on integration over tank interior surface Integral of x nx S 32 000000 m3 Integral of y ny x 32 000000 m3 Integral of z nz 32 000000 m3 X centre of volume based on integration over tank interior surface From integral of 0 5 x x nx 0 000000 m From integral of x y ny 0 000000 m From integral of x z nz 0 000000 m Z centre of volume based on integration over tank interior surface Based on integral of z x nx 1 000000 m Based on integral of z y ny 1 000000 m Based on integral of 0 5b z z nz 1 000000 m xxx PATCH PROPERTIES FOR DRY TANK Summary of slosh tank patch exterior panels Patch label Front dry Number of panels 42 port side of hull Total panel area 4 000000 m2 Average panel area 0 095238 m2 Minimum panel area 0 095238 m2 Maximum panel area 0 095238 m2 Normal ranges minimum and maximum Actual User input limits nx 1 000 1 000 0 990 1 000 ny 0 000 0 000 0 010 0 010 nz 0 000 0 000 0 010 0 010 Patch label Side dry Number of panels 88 port side of hull Total panel area 8 000000 m2 Average panel area 0 09090
168. l segments in u direction nuMax 40 Maximum number of control segments in v direction nvMax 40 Nominal minimun segment length between control points 0 100000 Maximum order of B spline in u direction puMax 3 Maximum order of B spline in v direction pvMax 3 Plot output option File Wet panel file name genFrigWetPanelHull bin Dry panel option DryPanel DRDC Atlantic TM 2011 307 77 Dry panel file name genFrigDryPanelHull bin Water density 1025 000 kg m3 Ship loading condition Draft of baseline at midships 4 200 m Trim of baseline by stern 0 000 m Height of CG above baseline 6 000 m Hull panelling parameters Limit on hull panel area 1 500000 m2 Limit on aspect ratio 3 000000 Limit normal angles between panels 15 0 deg xxx PATCH PROPERTIES FOR WET HULL Summary of patch panels Patch label Smooth hull from station 1 0 to 20 wet Number of panels 600 port side of hull Total panel area 875 188179 m2 Average panel area 1 458647 m2 Minimum panel area 0 130543 m2 Maximum panel area 2 005909 m2 Normal ranges minimum and maximum Actual User input limits nx 0 217 0 338 0 500 1 000 ny 0 046 0 999 0 050 1 000 nz 1 000 0 048 1 000 0 200 Patch label Outer transom wet Number of panels 1 port side of hull Total panel area S 0 147574 m2 Average panel area 0 147574 m2 Minimum panel area 0 147574 m2 Maximum panel area 0 147574 m2 Normal ranges minimum and maxim
169. led by a single patch As a more complex example Figures 5 and 6 show the hull lines and fitted surfaces for the generic frigate used as an example for this report The main portion of the hull is red the deck is green and the transom consists of blue and cyan portions Each patch is represented by a series of successive hull lines A hull patch must have at least 2 hull lines Each hull line must have at least 1 point For example a patch representing a bulbous bow could have a hull line with a single point at the front followed by additional hull lines each having several points Figure 7 shows an example of a hull line on the main portion of the hull The ship is assumed to be symmetric about the centreline thus offset points are only given for the port side of the hull For a hull line intersecting the waterline successive points should generally have increasing elevation The hull line in Figure 7 can be described as follows in the patch hull file begin hullLine stations 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 0 yOffsets 0 0 0 6 1 2 2 3 3 0 3 7 4 0 4 2 4 4 4 5 4 7 4 8 4 9 zOffsets 0 3 0 4 0 5 0 8 1 1 1 5 1 9 2 3 2 9 3 5 4 3 5 4 6 5 end hullLine The input record stations gives the station of each point on the hull line Station 0 represents the fore perpendicular and station 20 or sometimes 10 typically rep resents the aft perpendicular Note that the offsets on a hull line do not need to all have the same stat
170. length as enFreqsLongLimits in Record 12a defaults 10 and 10 Record 12c Encounter Frequencies for Lateral Mode Condition Num ber Limits This record is required if Record 12 has been used enFreqsLatLimits enFreqsLatLimits 1 character strings array of floats enFreqsLatLimits Record tag enFreqsLatLimits Array of encounter frequencies at which matrix condition number limits are specified for lateral source strengths defaults 0 0 and 10 Record 12d Lateral Mode Condition Number Limits This record is required if Record 12 has been used condLimitsLat condLimitsLat 1 character strings array of floats condLimitsLat Record tag condLimitsLat Array of lateral matrix condition number limits This array must be the same length as enFreqsLatLimits in Record 12c defaults 10 and 10 88 DRDC Atlantic TM 2011 307 Record 12e End of Condition Number Freguency Limits This record is reguired if Record 12 has been used end condLimits 2 character strings Record 13a Ship Speed Range in m s One of Records 13a to 13f must be given speedRange speedMin speedMax speedInc 1 character string 3 floats speedRange Record tag speedMin Minimum ship speed m s speedMax Maximum ship speed m s speedInc Increment for ship speed m s Record 13b Ship Speeds in m s One of Records 13a to 13f must be given speeds speeds 1 chara
171. ll Figure 4 shows an example wet panel hull created by SM3DPanelHull The panel colours indicate the elevation of the centroid of each panel relative to the waterline Table 2 SM3DPanelHull Summary Purpose Creates a panel representation of the wet hull and optionally of the dry hull Run time Several seconds Default input file panelHull3 inp Default output file panelHull3 out Sample files and file format Annex A Other required input Patch hull file developed by user Figure 4 Panelled Wet Hull of Generic Frigate Like all ShipMo3D applications SM3DPanelHull reads user input from a file The format of the main SM3DPanelHull input file is given in Annex A 1 SM3DPanelHull also reads data from a patch hull file which has hull coordinate data Annex A 2 describes the format of the patch hull file The patch hull file is a reference description of the hull geometry while the main input file is used to control how panels are generated to model the hull geometry Ideally the patch hull file only has to be developed once and then can be left as a permanent representation of the hull In 10 DRDC Atlantic TM 2011 307 contrast the main input file can vary depending on the ship loading condition and how the user wants the hull to be panelled 5 1 Hull Description Using a Patch Hull File The patch hull file models the hull as a series of patches with a patch being a continuous surface For example an ellipsoid could be model
172. ll source strengths delay time for retardation function maximum time for retardation function fluid displacement angle for U tube tank vector of hull flow potentials vector of flow normal velocities frequency domain sloshing potential for ship motion mode j DRDC Atlantic TM 2011 307 45 46 ship heading to in earth fixed axes encounter frequency incident wave frequency lower frequency for peak sloshing flow damping frequency of sloshing mode n propeller RPM response natural frequency upper frequency for peak sloshing flow damping rudder response natural frequency displacement DRDC Atlantic TM 2011 307 Annex A Files for Panelling the Hull with SM3DPanelHull3 A 1 Format of Input File for SM3DPanelHull3 Record 1 Beginning Record begin SM3DPanelHull3 1 character string with 2 words Record 2 Run Title label label 2 character strings label Record tag label Title for run This can include spaces Record 3 Beginning of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input begin note 1 character string with 2 words Record 3a Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input noteText character string noteText Text of note Multiple lines can be entered Record 3b End of Note Input Records 3 to 3b can optionally be used together to give
173. ller is Vaziprop Which includes con tributions from the ship speed the wave induced ship motions and incident waves The total flow attack angle is Aaziprop Which includes the effect of both the incident flow direction and the azimuthal deflection of the propeller The azimuthing propeller produces a thrust force FT along the axial direction of the propeller and a normal force FW Experimental data published by Brandner and Renilson 25 Stettler et al 24 and Islam et al 26 indicate that the normal force component can be surprisingly large 7 Qazi p aziprop Vaziprop Figure 18 Thrust and Normal Forces Acting on an Azimuthing Propeller in Incident Flow The forces acting on the propeller are represented as follows R pa 2 4 E Pp Naziprop Ds Kr Qaziprop Jaziprop 25 N _ 2 4 F P Naziprop Dors Kn Qaziprop Jaziprop 26 where FT is the thrust force Naziprop is the rotations per second Daziprop is the diameter Kr is thrust force coefficient and Ay is normal force coefficient The advance coefficient is given by Vazi TO Jozi Prop 27 prop Naziprop Pase DRDC Atlantic TM 2011 307 33 Once the thrust and normal forces have been evaluated the forces in ship based axes are evaluated For example the ship based forces from a standard azimuthing propeller with vertical orientation I of 90 are portero 1 _ taziprop FT COS FN sin 6 28 Faeterop FT sind FN cos 29 where Ej
174. llers Non azimuthing 0 sue dass 6e EER N N ER RR N ES 31 9 5 Rudder Propeller Interaction Coefficients aaa 32 9 6 Azimuthing Propellers vs ia RR is A A DR ee TS ee 32 9 7 U tube Tanks and Sloshing Tanks 34 9 8 Computation of Ship Propeller RPM for Specified Ship Speeds 34 TD Conclusions AA OR OAR N ee ERA EE eee do RI DE oe DT 38 References RSS ae See SMS ae Ee oh eS Pk Se HEF 39 Symbols and Abbreviations va br ae bed BEA en dat 42 Annex A Files for Panelling the Hull with SM3DPanelHull3 A7 A 1 Format of Input File for SM3DPanelHull3 A7 A2 Format of Input PatchHull File 4 4 au 4e 4 auras 62 A 3 Sample Input File for SM3DPanelHull8 66 A 4 Sample Patch Hull Input File for SM3DPanelHull3 67 A 5 Sample Output File for SM3DPanelHull3 TT Annex B Files for Radiation and Diffraction Computations with SM3DRadDif3 83 B 1 Format of Input Radiation and Diffraction File for SM3DRadDif3 A ER A Ried a Le ey es 83 B 2 Sample Input File for SM3DRadDiB 96 B 3 Sample Output File for SM3DRadDif3 97 Vi DRDC Atlantic TM 2011 307 Annex C Annex D Annex E Document Control Data Files for Panelling a Sloshing Tank with SM3DPanelSloshTank3 C 1 Format of Input File for SM3DPanelSloshTank3 C 2 Format of Input PatchSloshTank File C 3 Sample Input File for SM3DPanelSloshTank3
175. m of baseline by stern 0 000 m Beam based on maximum y value 14 111 m Volume 3622 358 m3 Water density 1025 000 kg m3 Mass 3712916 723463 kg Distance from FP to X origin m 61 750 m Origin located at LCG Station of X origin 10 292 Center of buoyancy wrt waterline 1 614 m Wetted surface area 1753 438 m2 Waterplane area 1344 310 m2 X value of center of floatation 5 022 m Integral of waterplane area X 2 1234204 219 m4 Integral of waterplane area Y 2 17543 814 m4 KG height of CG above baseline 6 000 m Height of CG above waterline 1 800 m Metacentric height from hydrostatics 1 430 m Inertial Properties Inertia matrix units of kg kg m and kg m2 3712917 0 0 0 0 0 0 3712917 0 0 0 0 0 0 3712917 0 0 0 0 0 0 85545601 0 0 0 0 0 O 3341625051 0 0 0 0 0 O 3341625051 Roll radius of gyration 4 800 m Pitch radius of gyration 30 000 m Yaw radius of gyration 30 000 m 230 DRDC Atlantic TM 2011 307 Roll Metacentric Height Properities Correction to roll metacentric height 0 000 m Corrected metacentric height 1 430 m Roll Properties at Zero Forward Speed Roll added mass 19548240 530169 kg m 2 Nondimensional roll added mass A44 144 0 229 Natural roll frequency 0 704 rad s Natural roll period 8 928 s PROPELLER RPM FOR SPECIFIED SHIP SPEEDS Propeller keys All Speed m s Speed knots Froude RPM Resistance N 2 575 5 000 0 075 41 809 20047 803 5 150 10 000
176. m panel area 0 095238 m2 Maximum panel area 0 095238 m2 Normal ranges minimum and maximum Actual User input limits nx 1 000 1 000 0 990 1 000 ny 0 000 0 000 0 010 0 010 nz 0 000 0 000 0 010 0 010 Patch label Side wet Number of panels 88 port side of hull Total panel area 8 000000 m2 132 DRDC Atlantic TM 2011 307 Average panel area 0 090909 m2 Minimum panel area 0 090909 m2 Maximum panel area 0 090909 m2 Normal ranges minimum and maximum Actual User input limits nx 0 000 0 000 0 010 0 010 ny 1 000 1 000 0 990 1 000 nz 0 000 0 000 0 010 0 010 Patch label Aft wet Number of panels 42 port side of hull Total panel area 4 000000 m2 Average panel area 0 095238 m2 Minimum panel area 0 095238 m2 Maximum panel area 0 095238 m2 Normal ranges minimum and maximum Actual User input limits nx 1 000 1 000 1 000 0 990 ny 0 000 0 000 0 010 0 001 nz 0 000 0 000 0 010 0 010 ok PROPERTIES FOR PANELLED WET TANK Summary of slosh tank hydrostatic properties Number of panels on port side 260 Total number of panels 520 Beam based on maximum y value 4 000 m Volume 32 000 m3 Fluid density 1000 000 kg m3 Mass 32000 000000 kg Vertical center of mass wrt fluid line 1 000 m Wetted surface area 48 000 m2 Fluid plane area 16 000 m2 X value of center of fluid surface 0 000 m Integral of fluidplane area X 2 S 21 157 m4 wrt center of fluid surface Integra
177. mitted then a default value is computed based on the foil aspect ratio Drag coefficient for flow normal to the rudder surface default Lin Record 16d7 Rudder Autopilot Control Parameters This record must follow Record 16d4 16d5 or 16d6 autopilotParam deflectMaxDeg velMaxDeg accMaxDeg freqResponse dampResponse dtMax 1 character string 6 floats controlParam deflectMaxDeg velMaxDeg accMaxDeg fregResponse dampResponse dtMax 188 Record tag Maximum rudder deflection angle deg This value is typically set to 35 Maximum rudder deflection velocity deg s If this value is set to 0 0 then the maximum velocity is unlimited Maximum rudder acceleration deg s If this value is set to 0 0 then the maximum acceleration is unlimited Undamped response frequency of rudder autopilot Damping of rudder autopilot as a fraction of critical damping This value is typically between 0 5 and 1 0 Maximum time increment for time stepping of rudder motions If this value is set to 0 0 then the no limit is applied and time stepping is done using the same time increment as for ship motions DRDC Atlantic TM 2011 307 Record 16d8 Rudder Autopilot Displacement Gains This record must follow Record 16d7 dispGains surgeGain swayGain heaveGain rollGain pitchGain yawGain 1 character string 6 floats dispGains surgeGain sway Gain heaveGain rollGain p
178. mum encounter frequency in the radiation and diffraction database of Record 4 A value of approximately 17 g L is recommended Record 13 High Frequency Option for Computing Hull Hydrody namic Retardation Functions retard HighFreqApproxOption retardHighFreqApproxOption 2 character strings retardHighFreqApproxOption Record tag retardHighFreqApproxOption When evaluating retardation functions it is assumed that radiation damping at frequencies greater than enFreqIntMax Record 12 decay with with an exponential function of we If this option is being used then care should be taken to ensure that radiation damping coefficients from SM3DRadDif at frequency EnFreqIntIncMax are accurate noRetardHighFreqApproxOption No high frequency approximation is used when computing retardation function Record 14 Beginning of Hull Viscous Data begin hullViscous 1 character string with 2 words DRDC Atlantic TM 2011 307 165 Record 14a Ship Speeds in m s for Resistance Coefficients One of Records 14a 14b or 14c must be given speedsResist speedsResist 1 character string array of floats speedsResist Record tag speedsResist Array of ship speeds m s Record 14b Ship Speeds in Knots for Resistance Coefficients One of Records 14a 14b or 14c must be given speedsKnotsResist speedsKnotsResist 1 character string array of floats speedsKnotsResist Record tag spee
179. n be followed by an arbitrary number of repetitions of Records 19a to 19f giving plot parameters Record 19g must follow at the end of plot parameter data Record 19a Radiation Plot Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 19b Radiation Plot Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 19c Radiation Plot Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 200 mm DRDC Atlantic TM 2011 307 93 Record 19d Option for Longitudinal and or Lateral Modes This record is optional if a plot is being specified longLatOption longLatOption 2 character strings longLatOption Record tag longLatOption Option for plotting modes LongLat Longitudinal and lateral and modes will be shown with longitudinal modes in the left column and lateral modes in the right column default Long Longitudinal modes will be shown in a single column Lat Lateral modes will be shown in
180. nelFileName Name of output file describing hull in NET binary serialization format DRDC Atlantic TM 2011 307 55 Record 15 Dry Panel Hull Option dryPanelOption dryPanelOption 2 character strings dryPanelOption Record tag dryPanelOption Option for panelling dry portion of hull DryPanel Dry portion of hull is panelled NoDryPanel Dry portion of hull is not panelled Note If the option DryPanel is selected then the input patch hull should describe a fully enclosed volume Record 15a Dry Panel Hull File Name This record is only required if dryPanelOption is set to dryPanel in Record 15 dryPanelFileName dryPanelFileName 2 character strings dryPanelFileName Record tag dryPanelFileName Name of output file describing hull in NET binary serialization format Record 16 Water Density waterDensity waterDensity 1 character string 1 float waterDensity Record tag water Density Water density kg m For salt water a value of 1025 kg m is recommended For fresh water a value of 1000 kg m is recommended Record 17 Draft and Trim One of this record or Record 18 is required draftTrim draftBIMid trimBlStern 1 character string 2 floats draftTrim Record tag draftBIMid Draft of baseline at midships m trimBlStern Trim by stern m 56 DRDC Atlantic TM 2011 307 Record 18 Displacement and LCG Location One of this record or Record 17 is re
181. ng RPM One of Records 29a 29b or 29c is required if rpmSpeedOption is set to rpmSpeed in Record 28 speedsKnotsRpm speedsKnotsRpm 1 character string array of floats speedsKnotsRpm Record tag speedsKnotsRpm Array of ship speeds knots at which propeller RPM values are determined Record 29c Froude Numbers for Determining RPM One of Records 29a 29b or 29c is required if rpmSpeedOption is set to rpmSpeed in Record 28 FroudesRpm FroudesRpm 1 character string array of floats FroudesRpm Record tag FroudesRpm Array of Froude numbers at which propeller RPM values are determined Record 30 Evaluation of Azimuthing Propeller RPM for Ship Speed Option aziRpmSpeedOption aziRpmSpeedOption 2 character strings aziRpmSpeedOption Record tag aziRpmSpeedOption Option for computing azimuthing propeller RPM for specified ship speeds aziRpmSpeed Required azimuthing propeller RPMs are evaluated for specified ship speeds noAziRpmSpeed Azimuthing propeller RPMs are not evaluated for ship speeds 216 DRDC Atlantic TM 2011 307 Record 30a Parameters for Computing Ship Azimuthing Propeller RPM Given Speed This record is required if aziRpmSpeedOption is set to aziRpmSpeed in Record 30 paramAziRpmSpeed nAziPropKey rpmAziMax dtMaxAziRpm tEndAziRpm 1 character string 1 integer 3 floats paramAziRpmSpeed Record tag nAziPropKey Number o
182. nning SM3DBuildShip Record 254 End of Data for Sloshing Tank This record must be given at the end of input data for a sloshing tank end sloshTank 1 character string with 2 words Record 25a End of Data for Sloshing Tanks end sloshTanks 1 character string with 2 words 208 DRDC Atlantic TM 2011 307 Record 26 Beginning of Ship Plot Data This record is optional begin shipPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 26a to 26h giving plot parameters Record 26i must follow at the end of plot parameter data Record 26a Ship Plot Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 26b Ship Plot Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 26c Ship Plot Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm DRDC Atlantic TM 2011 307 209 Record 26d S
183. north and 90 representing the ship heading east A translating earth coordinate system shown in Figure 2 is used for representing ship motions in heave roll and pitch and also for frequency domain applications Heave ns is the vertical displacement upward of the ship centre of gravity relative to its position when the ship is in calm water thus the mean heave is typically near zero Ship pitch ms of a freely maneuvering ship is given relative to its position at heading x and ship roll n is given relative to the instantaneous heading angle x and pitch angle n of the moving ship Wave diffraction computations using SM3DRadDif are based on relative sea direction Bs as shown in Figure 3 180 for head seas 90 for seas from port Relative sea direction is related to ship heading and wave heading by Ba v 180 x 3 For deflections of rudders ShipMo3D uses a convention of positive deflection when counter clockwise as viewed from inside the hull Consequently positive deflection of a typical ship rudder pointing downward will cause a ship to turn starboard DRDC Atlantic TM 2011 307 7 Ship Sea Figure 1 Earth Fixed Coordinate System Figure 2 Translating Earth Coordinate System DRDC Atlantic TM 2011 307 Ship Sea Figure 3 Sea Direction Relative to Ship DRDC Atlantic TM 2011 307 5 Panelling of the Ship Hull SM3DPanelHull Table 2 gives a summary of the application SM3DPanelHu
184. of a hull and appendages produced by SM3DBuildShip SM3DBuild Ship can build ship models for simulation in the time domain or for predictions in the frequency domain Table 7 SM3DBuildShip Summary Purpose Creates a database of ship properties influencing hydrodynamic forces including hull radiation and diffraction hull resistance hull maneuvering ap pendages and propellers Run time Several seconds or several minutes if propeller RPMs are to be determined for specified ship speeds Default input file buildShip3 inp Default output file buildShip3 out Sample files and file format Annex E Other required input Hull radiation and diffraction database created by SM3DRadDif Dry panel hull file if nonlinear buoyancy and incident wave forces will be used for ship motion predictions A dry panel hull file is among the optional input parameters for SM3DBuildShip Note that this option must be used if ship motion predictions with SM3DFreeMo will include nonlinear buoyancy and incident wave forces SM3DBuildShip includes optional input for adjusting the metacentric height of the ship This parameter can be set to a negative value to model the influence of partially filled tanks on roll stiffness Note that such a correction for partially filled tanks is only required if they have not been explicitly modelled as U tube tanks or sloshing tanks within ShipMo3D Input radii of gyration for roll pitch and yaw are given as values for
185. omain coefficients This value should typically correspond with the maximum encounter frequency in the sloshing tank radiation database Record 13 Retardation Function Correction Option for Maximum Time Delay tRetardMaxCorrectionOption tRetardMaxCorrectionOption 2 character strings tRetardMaxCorrectionOption Record tag TRetardMaxCorrection Retardation functions are multiplied by 1 T tAUmas Which gives better results at lower frequencies recommended NoTRetardMaxCorrection Retardation functions are not corrected 142 DRDC Atlantic TM 2011 307 Record 14 Retardation Function Output Option outRetardOption outRetardOption 2 character strings outRetardOption Record tag outRetardOption Retardation functions are given as a table in output file No retardation functions are given in output file Record 15 Plot Option plotOutOption plotOutOption 2 character strings plotOutOption Record tag plotOutOption Option for making plots of hydrodynamic coefficients NoPlots No plots are produced ScreenFile Plots are both plotted on the screen and to a file Screen Plots are only plotted on the screen File Plots are only written to a file Record 16 Beginning of Radiation Plot Data This record is optional begin sloshTankRadPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetition
186. onibles dans le domaine fr quentiel et dans le domaine temporel Pour les pr visions dans le domaine temporel le navire peut man uvrer librement en eau calme ou dans les vagues Le pr sent rapport sert de manuel de l utilisateur pour la cr ation de mod les de navires en utilisant la version 3 Un rapport d accompagnement fournit un manuel de l utilisateur pour les pr visions des mouvements de navires dans le domaine temporel et dans le domaine fr quentiel en utilisant des mod les de navires d j cr s La version 3 du logiciel ShipMo3D introduit des capacit s permettant de mod liser des citernes tube en U et des citernes ballottement Importance des r sultats ShipMo3D convient toujours pour la pr vision des mouvements de navires dans les vagues Les simulations peuvent tre utilis es pour diff rentes applications y compris l analyse technique l analyse des op rations et la formation Travaux ult rieurs pr vus La version 3 du logiciel ShipMo3D sera int gr e des simulations mod lisant des syst mes de plate formes navales l aide de l architecture de haut niveau iv DRDC Atlantic TM 2011 307 Table of contents o a R BAD BARE Ba E Met DRA Se LR i RESUME sti MA a MS RU o DE A Ge ee i PRECUELA 111 SOMO ds it dd RS A a rd ts ME iv Table OL eon GES 2 0 AR 2 O DER ER DOE A Se Be LE OE v Listrottables R R T Ge le D EEUE SE Re viii EE Ru A Moe ih eA AR HE OORL a R OE ee de ix Lino dudo ta a eM
187. orce coefficient ide Yvr Nonlinear sway sway force coefficient Yor Yrr Nonlinear sway yaw force coefficient Yiri Nvr2 Nonlinear yaw sway force coefficient N 2 Nrr Nonlinear yaw yaw force coefficient N ee Nrv2 Nonlinear yaw yaw force coefficient N 2 170 DRDC Atlantic TM 2011 307 Record 15b2 Options for Input Hull Maneuvering Coefficients Pro vided in Record 15b1 This record is optional if hullManMethod is set to inputManCo in Record 15b inputManCoOptions inputManCoAxesOption inputManCoEnFreqOption 3 character strings inputManCoOptions Record tag inputManCoAxesOption Option for input axes system for input hull maneuvering coefficients StabilityAxes Input maneuvering coefficients are given for stability axes default TranslatingEarthAxes Input maneuvering coefficients are given for translating earth axes inputManCoEnFreqOption Option for encounter frequency for input hull maneuvering coefficients Zero Input maneuvering coefficients are for low frequency motions default Infinite Input maneuvering coefficients are for high frequency motions DRDC Atlantic TM 2011 307 171 Record 15b3 Increments to Nondimensional Hull Maneuvering Coef ficients Evaluated Using the Method of Inoue et al This record is optional and can be used if hullManMethod is set to Inoue in Record 15b deltaManCos deltaYv delta Yr deltaNv deltaNr deltaYvv deltaYvr deltaYrr
188. ord 24 Beginning of Sloshing Tank Data begin sloshTanks 1 character string with 2 words Record 24a Beginning of Sloshing Tank This record is optional and must follow Record 24 Sequences of Records 24a to 24a can be entered to described an arbitrary number of sloshing tanks begin sloshTank 1 character string with 2 words Record 24a1 Sloshing Tank Label This record must follow Record 24a label label 2 character strings label Record tag label Label for sloshing tank DRDC Atlantic TM 2011 307 207 Record 24a2 Sloshing Tank Key This record must follow Record 24a1 key key 2 character strings key Record tag key Key for sloshing tank This should consist of a single word no spaces Note that the key cannot be equal to All Record 24a3 Sloshing Tank Position This record must follow Record 24a2 position station zBlBottom 1 character string 2 floats position Record tag station Station zBlBottom Vertical coordinate of tank bottom relative to ship baseline m up Record 25 Sloshing Tank Radiation Database File Name sloshTankRadDBFileName sloshTankRadDBFileName 2 character strings sloshTankRadDBFileName Record tag sloshTankRadDBFileName Name of input file with database of sloshing tank radiation computations in NET binary serialization format This file is produced by running SM3DRadSloshTank prior to ru
189. ord must follow Record 16a4 yRoots yRoots 1 character string array of floats yRoots Record tag yRoots Lateral offsets of bilge keel root Input values correspond with stations in Record 16a4 If pairOption is set to Pair in Record 16a then a factor of 1 0 will be applied to the starboard bilge yRoot values Record 16a6 Vertical Coordinates of Bilge Keel at Root This record must follow Record 16a5 zBlRoots zBlRoots 1 character string array of floats zBlRoots Record tag zBlRoots Vertical coordinate of bilge keel root relative to baseline Input values correspond with stations in Record 16a4 Record 16a7 Spans of Bilge Keel at Root This record must follow Record 16a6 spans spans 1 character string array of floats spans Record tag spans Bilge keel spans Input values correspond with stations in Record 16a4 174 DRDC Atlantic TM 2011 307 Record 16a8 Bilge Keel Dihedral Angles This record must follow Record 16a7 dihedralsDeg dihedralsDeg 1 character string array of floats dihedralsDeg Record tag dihedralsDeg Bilge keel dihedral angles 0 oriented to port 90 oriented upward Port bilge keels typically have dihedral angles of approximately 45 and starboard bilge keels typically have dihedral angles of approximately 135 Input values correspond with stations in Record 16a4 If pairOption is set to Pair in Record 16a th
190. ord tag wetPanelFileName Name of output file describing tank in NET binary serialization format 118 DRDC Atlantic TM 2011 307 Record 16 Dry Panel Tank Option dryPanelOption dryPanelOption 2 character strings dryPanelOption Record tag dryPanelOption Option for panelling dry portion of tank DryPanel Dry portion of tank is panelled NoDryPanel Dry portion of tank is not panelled Note If the option DryPanel is selected then the input patch tank should describe a fully enclosed volume Record 16a Dry Panel Tank File Name This record is only required if dryPanelOption is set to dryPanel in Record 16 dryPanelFileName dryPanelFileName 2 character strings dryPanelFileName Record tag dryPanelFileName Name of output file describing tank in NET binary serialization format Record 17 Fluid Density fluidDensity fluidDensity 1 character string 1 float fluidDensity Record tag fluidDensity Water density kg m For fresh water a value of 1000 kg m is recommended Record 18 Draft and Trim heightFluid heightFluid 1 character string 1 float heightFluid Record tag heightFluid Height of fluid above tank baseline This value must be lt hiank where Rak is the total height of the tank DRDC Atlantic TM 2011 307 119 Record 19 Tank Panel Parameters panelParameters areaPanelLimit aspectPanelLimit deltaNormalPanelLimitDeg 1 characte
191. os Ship non dimensional resistance coefficients The resistance coefficients are non dimensionalized by 1 2 p Aw U with U in m s for the resistance coefficient The number of input resistance coefficients must correspond with the number of ship speeds in Record 14a 14b or 14c Record 14h Hull Eddy and Lateral Drag Coefficients This record is optional If this Records is not given then parameters are set to defaults hullDragCo dragCoEddy dragCoLateral 1 character strings 2 floats hullDragCo Record tag dragCoEddy Eddy drag coefficient for roll motion default 1 17 dragCoLateral Lateral drag coefficient default 0 0 Note that lateral drag forces are normally included in nonlinear maneuvering force coefficients and that the lateral drag coefficient should be zero in such cases 168 DRDC Atlantic TM 2011 307 Record 14i End of Hull Viscous Force Data end hullViscous 1 character string with 2 words Record 15 Beginning of Hull Maneuvering Force Data begin hullManeuver 1 character string with 2 words Record 15a Hull Dimensions for Computing Maneuvering Coefficients This record is optional If the record is omitted then values will be set to defaults hullManeuverDim draftMidMan trimSternMan beamMan blockCoMan zW1Man 1 character string 5 floats hullManeuverDim draftMidMan trimSternMan beamMan blockCoMan zWIMan Note Record tag
192. our table Available tables are BlueGreenRedScale RedHullYellowApp HullLiftSurfaceProp Wet WhiteDryGrey GreyScale PartialGreyScale and White Option for showing starboard portion of hull ShowStarboard Both sides of hull are shown HideStarboard Only port side of hull is shown Option for shading of hull panels Solid Each panel has a constant colour based on the centroid location Smooth Each panel can have colour variation within the panel Record 21g Stations for Cropping Plot This record is optional if a plot is being specified cropStations stationMinCrop stationMaxCrop 1 character string 2 floats cropStations Record tag stationMinCrop Minimum station for cropping plot stationMaxCrop Maximum station for cropping plot Note If this record is omitted for a plot then there is no cropping of the plot 60 DRDC Atlantic TM 2011 307 Record 21h Panel Line Thickness This record is optional if a plot is being specified lineThickness lineThickness 1 character string 1 float lineThickness Record tag lineThickness Line thickness of panels default 1 0 Record 21i End of Panelled Hull Plot Data end panelPlots 1 character string with 2 words Record 22 End of Input File for SM3DPanelHull end SM3DPanelHull3 1 character string with 2 words DRDC Atlantic TM 2011 307 A 2 Format of Input PatchHull File Record 1 Beginning Record be
193. ppendage SM3DBuildShip then generates a port appendage first and a starboard appendage second For rudders SM3DBuildShip requires input autopilot data The rudder response characteristics are modelled as follows jr udder am 2 Cs Paes jr udder i ie g udder w GEE 19 where 7vdder is rudder acceleration Cs is the nondimensional damping response con stant ws is the rudder response natural frequency 64 is rudder velocity and DRDC Atlantic TM 2011 307 29 Appendage Dihedral angle T root Ship hull root Zbl Baseline Y lt U Figure 16 Appendage Root Location and Dihedral Angle View from Aft E Crot Hull lt Ctip gt Figure 17 Dimensions for Static Foil or Rudder from Viewpoint Perpendicular to Appendage 30 DRDC Atlantic TM 2011 307 rudder is the command rudder angle Rudder deflections have a convention of pos itive for counter clockwise deflection viewed from inside the hull If the rudder is operating in autopilot mode then the rudder command angle is determined by input autopilot gains and ship motions in earth fixed axes rudder 6 Tmax OSS E nf ms 44 ni 7 n dr v 20 j l where ks is the proportional gain for mode 7 nf is the motion displacement in earth fixed axes for mode j ae is the command motion displacement for mode 7 k is the integral gain for mode j 7744er is the integration duration t is the current time T i
194. prox begin hullViscous speedsKnotsResist 5 10 15 20 25 30 35 resistOption HoltropMennen hullDragCo 1 17 0 end hullViscous begin hullManeuver hullManMethod Inoue end hullManeuver begin liftSurfaces begin bilgeKeel pairOption pair label Bilge keel key BilgeKeel stations 6 7 8 9 10 11 12 13 14 yRoots 5 14 5 557 5 8 5 83 5 97 5 91 5 8 5 58 5 23 ZB1Roots 2 49 2 21 1 94 1 66 1 66 1 66 1 66 1 66 1 66 spans 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 dihedralsDeg 45 45 45 45 45 45 45 45 45 addedMassOption includeAddedMass bilgeKeelDamp Ikeda 0 000 1 000 end bilgeKeel begin foil pairOption pair label Outer shaft bracket key OuterBracket dimen 18 4 3 04 3 1 1 105 addedMassOption includeAddedMass 220 DRDC Atlantic TM 2011 307 wakeFraction 0 000 end foil begin foil pairOption pair label Inner shaft bracket key InnerBracket dimen 18 0 5 2 5 3 2 1 1 45 addedMassOption includeAddedMass wakeFraction 0 000 end foil begin skeg pairOption single label Skeg key Skeg stations 14 16 yRoots 0 0 ZB1Roots 0 0 276 spans 0 1 2 dihedralsDeg 90 90 addedMassOption includeAddedMass skegDamp Ikeda 0 000 1 000 end skeg begin rudder pairOption single label Rudder key Rudder dimen 19 0 3 6 4 8 4 8 2 4 90 incFlowCo 0 000 0 600 autopilotParam 35 30 3 0 85 0 1 dispGains 00000 4 velGains 00000 8 end rudder end liftSurfaces begin propellers begin fixedPitchPropeller pairOption pair label Propeller key Propeller dimen 18 5 2 9 0
195. r RPM for Specified Ship Speeds SM3DBuildShip includes a capability for determining ship propeller RPM for specified ship speeds This capability is available for both azimuthing and non azimuthing propellers An iterative process is used to determine the actual RPM within a specified tolerance for ship speeds This feature is very useful for determining what RPM should be used for subsequent simulations with SM3DFreeMo 34 DRDC Atlantic TM 2011 307 aziprop 0 0 0 6 EERS Jaziprop 0 6 Bee Se Jaziprop 1 2 0 4 WP eae ae _ _ Thrust force coefficient Kr 0 2 ies oe 0 0 0 2 i i i i i L J 60 30 0 30 60 Attack angle oasiprop deg Figure 19 Thrust Force Coefficient for Example Azimuthing Propeller 1 0 z P Se Ad L efa Pid E a Be D an r G oe Le 3 a o 0 0 EE AAA gt Q Peas Fi e et d C daziprop 0 0 oO Pe A E i id Mm Jaziprop 0 6 Z E EA e EE Jaziprop 1 2 1 0 I I I 60 30 0 30 60 Attack angle oasiprop deg Figure 20 Normal Force Coefficient for Example Azimuthing Propeller DRDC Atlantic TM 2011 307 35 Mean tank level Port Starboard reservoir reservoir Duct Figure 21 Aft View of U tube Tank with Fluid Displacement Angle 36 DRDC Atlantic TM 2011 307 _ 1 Mean fluid level Port Starboard reservoir reservoir he h fluid ha aa MN l Figure 22 Aft Vie
196. r dry tank Wet Wet tank only is plotted Dry Dry tank only is plotted dryPanelOption must be DryPanel in Record 16 WetDry Wet and dry tanks are plotted together dryPanelOption must be DryPanel in Record 16 colour Table Colour table Available tables are BlueGreenRedScale RedTankYellowApp TankLiftSurfaceProp WetWhiteDryGrey GreyScale PartialGreyScale and White showStarboardOption Option for showing starboard portion of tank ShowStarboard Both sides of tank are shown HideStarboard Only port side of tank is shown smoothShadeOption Option for shading of tank panels Solid Each panel has a constant colour based on the centroid location Smooth Each panel can have colour variation within the panel Record 20g Panel Line Thickness This record is optional if a plot is being specified lineThickness lineThickness 1 character string 1 float lineThickness Record tag lineThickness Line thickness of panels default 1 0 Record 20h End of Panelled Tank Plot Data end panelPlots 1 character string with 2 words 122 DRDC Atlantic TM 2011 307 Record 21 End of Input File for SM3DPanelSloshTank end SM3DPanelSloshTank3 1 character string with 2 words DRDC Atlantic TM 2011 307 123 C 2 Format of Input PatchSloshTank File Record 1 Beginning Record begin patchSloshTank3 1 character string with 2 words Record 2 Patch Tank Label labe
197. r string 3 floats panelParameters Record tag areaPanelLimit Limit on area for tank panels m2 aspectPanelLimit Limiting tank panel aspect ratio A value of 3 0 is recommended deltaNormalPanelLimitDeg Limit on normal angle between adjacent panels A value of 15 is recommended Record 20 Beginning of Panelled Tank Plot Data This record is optional begin panelPlots 1 character string with 2 words Note If this record is entered then it can be followed by an arbitrary number of repetitions of Records 20a to 20g giving plot parameters Record 20h must follow at the end of plot parameter data Record 20a Panelled Tank Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file Record 20b Panelled Tank Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg 120 DRDC Atlantic TM 2011 307 Record 20c Panelled Tank Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats ImageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 100 mm Record 20d Panelled Tank C
198. rd tag Ship roll gyradius m Default is 0 4Bmaz where Bmax is determined from the maximum y value for the wet panelled hull Ship pitch gyradius m Default is 0 25L Ship yaw gyradius m Default is 0 25L These values are only used for non dimensionalization of coefficients in the ASCII output file These values do not affect the output dimensional values in the output database file radDifDBFileName DRDC Atlantic TM 2011 307 85 Record 9 Options for Computing Hydrodynamic Coefficients This record is optional If the record is not included then default values will be used hydroCompOptions enFreg Trans speedEnFreqMax rAreaThreshold rImageAreaThreshold sourceGaussOption fieldGalerkinOption orderGauss 1 character string 4 floats 2 character strings 1 integer hydroCompOptions Record tag enFreq Trans Encounter frequency threshold for determining whether the frequency dependent Green function is determined relative to the zero frequency Green function or the infinite frequency Green function default 0 0 A value of approximately 6 g L is recommended speedEnFreqMax Limit on U w for determining hydrodynamic forces at forward speed default 10 rAreaThreshold Limit on R yAs for exact evaluation of 1 R from a source panel to a field point default 20 0 rlmageAreaThreshold Limit on R A for exact evaluation of 1 R from the image of a source panel to a field point default 20 0 sourc
199. rd tag key Key for static foil This should consist of a single word with no spaces If pairOption is set to Pair in Record 16b1 then the port and starboard static foil keys will be prefixed with Port and Starboard respectively Note that the key cannot be equal to All 178 DRDC Atlantic TM 2011 307 Record 16b4 Static Foil Dimensions This must follow Record 16b3 dimen station yRoot zBlRoot span chordRoot chordTip dihedralDeg 1 character string 7 floats dimen Record tag station Station of centroid yRoot Lateral offset of root m port zBlRoot Vertical coordinate of root relative to baseline m up span Span m chordRoot Chord length at root m chordTip Chord length at tip m dihedralDeg Dihedral angle deg Record 16b5 Static Foil Inclusion of Added Mass Option This record is optional If this record is not included then a default value is used addedMassOption addedMassOption 2 character strings addedMassOption Record tag addedMassOption Option for including static foil added mass IncludeAddedMass added mass is included in static foil computations default ExcludeAddedMass added mass is excluded in static foil computations This option is intended to be used only in cases when the static foil added mass is already modelled elsewhere such as when the static foil is modelled as part of the ship hull For example a submarine sail coul
200. rd tag dragCoRef Reference drag coefficient rollVelAmpRefDeg Reference roll velocity amplitude deg s alphaDecayDragCo Reference drag decay coefficient This value should be gt 0 0 Record 16a14 End of Bilge Keel Data This record must be entered at the end of data for a bilge keel end bilgeKeel 1 character string with 2 words Record 16b Beginning of Static Foil Data Records 16b to 16b8 are optional and can be repeated for each static foil or static foil pair begin foil 1 character string with 2 words DRDC Atlantic TM 2011 307 177 Record 16b1 Pair Option This record must follow Record 16b pairOption pairOption 1 character string with 2 words pairOption Record tag pairOption Option for input of single static foil or pair of static foils Single Input given for a single static foil Pair Input is used to create a pair of static foils Input dimensions should be provided for the port static foil Record 16b2 Static Foil Label This record must follow Record 16b1 label label 2 character strings label Record tag label Label for static foil This can include spaces If pairOption is set to Pair in Record 16b1 then the port and starboard static foil labels will be prefixed with Port and Starboard respectively Record 16b3 Static Foil Key This record must follow Record 16b2 key key 2 character strings key Reco
201. re 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Earth Fixed Coordinate System o Translating Earth Coordinate System Sea Direction Relative to Ship ae gee Sa o eS os Panelled Wet Hull of Generic Frigate Patch Hull Lines of Generic Frigate Patch Hull Surfaces of Generic Frigate Hull Line within Patch Hull File View from Aft Profile of Patch Representing the Main Portion of Ship Hull View HO POEL CLG de eed ok RUN oh A Pav MAY hagas Mah hop gag Convention for Evaluating Hull Normal from Input Patch Data Ship Vertical Coordinates View from Starboard Heave Added Mass and Damping for Generic Frigate Dimensions of Sloshing Tank with Rectangular Cross Section Sloshing Tank with a Narrow Middle Sway Sloshing Added Mass and Damping for Box with Length of 4m Width of 4 m and Fluid Height of 2m Panelled Hull Appendages and Propellers of Generic Frigate from SM3 DBuld SHP 1 3 4 9 ado data a NR Appendage Root Location and Dihedral Angle View from Aft Dimensions for Static Foil or Rudder from Viewpoint Perpendicular to Appendage Thrust and Normal Forces Acting on an Azimuthing Propeller in Incident Flow are eae as Sede apn Geese FO AE ID Thrust Force Coefficient for Example Azimuthing
202. record must follow Record 19a12 deflectControlParam deflectMaxDeg deflect VelMaxDeg deflectAccMaxDeg deflectFreqResponse deflectDampResponse deflectDtMax 1 character string 6 floats deflectControlParam Record tag deflect MaxDeg Maximum deflection angle deg This value is typically set to 35 deflect VelMaxDeg Maximum deflection velocity deg s If this value is set to 0 0 then the maximum velocity is unlimited deflectAccMaxDeg Maximum deflection acceleration deg s If this value is set to 0 0 then the maximum acceleration is unlimited deflect FreqResponse Undamped response frequency of deflection controller deflectDampResponse Damping of deflection controller as a fraction of critical damping This value is typically between 0 5 and 1 0 deflectDtMax Maximum time increment for time stepping of azimuthing propeller deflections If this value is set to 0 0 then the no limit is applied and time stepping is done using the same time increment as for ship motions 202 DRDC Atlantic TM 2011 307 Record 19a14 Azimuthing Propeller Deflection Controller Displace ment Gains This record must follow Record 19a13 deflectDispGains surgeGain swayGain heaveGain rollGain pitchGain yawGain 1 character string 6 floats deflectDispGains Record tag surgeGain Surge gain deg m This value should be 0 0 swayGain Sway gain deg m This value should be 0 0 heaveGain Heave ga
203. s 204 DRDC Atlantic TM 2011 307 Record 20 Beginning of U tube Tank Data begin uTubeTanks 1 character string with 2 words Record 20a Beginning of U tube Tank This record is optional and must follow Record 20 Sequences of Records 20a to 20a can be entered to described an arbitrary number of U tube tanks begin uTubeTank 1 character string with 2 words Record 20a1 U tube Tank Label This record must follow Record 20a label label 2 character strings label Record tag label Label for U tube tank Record 20a2 U tube Tank Key This record must follow Record 20a1 key key 2 character strings key Record tag key Key for U tube tank This should consist of a single word no spaces Note that the key cannot be equal to All DRDC Atlantic TM 2011 307 205 Record 20a3 U tube Tank Dimensions This record must follow Record 20a2 dimen station ZBIBottom length widthDuct widthReservoir heightDuct heightTotal 1 character string 7 floats dimen Record tag station Station ZBIBottom Vertical coordinate of bottom relative to ship baseline m up length Length in ship longitudinal direction m widthDuct Width of centre duct m widthReservoir Width of each side reservoir m heightDuct Height of duct deg heightTotal Total height from base to top of reservoir m Record 21 U tube Tank Fluid Properties This record mus
204. s are removed enFregsRemove enFreqsRemove 1 character string array of floats enFreqsRemove Record tag enFreqsRemove Array of encounter frequencies to be removed from values given in Records 10a or 10b rad s This record can be used for removing irregular frequencies If this record is not specified then no encounter frequencies are removed unless associated matrix condition numbers exceed limits specified below Record 12 Beginning of Condition Number Frequency Limits This record and the subsequent Records 12a to 12e are optional If these Records are omitted then parameters are set to defaults begin condLimits 2 character strings DRDC Atlantic TM 2011 307 87 Record 12a Encounter Freguencies for Longitudinal Mode Condition Number Limits This record is reguired if Record 12 has been used enFregsLongLimits enFreqsLongLimits 1 character strings array of floats enFreqsLongLimits Record tag enFreqsLongLimits Array of encounter frequencies at which matrix condition number limits are specified for longitudinal source strengths defaults 0 0 and 10 Record 12b Longitudinal Mode Condition Number Limits This record is required if Record 12 has been used condLimitsLong condLimitsLong 1 character strings array of floats condLimitsLong Record tag condLimitsLong Array of longitudinal matrix condition number limits This array must be the same
205. s of Records 16a to 16f giving plot parameters Record 16g must follow at the end of plot parameter data Record 16a Radiation Plot Image File Name This record is required if a plot is being specified imageFileName imageFileName 2 character strings imageFileName Record tag imageFileName Name of output plot file DRDC Atlantic TM 2011 307 143 Record 16b Radiation Plot Image Format This record is optional if a plot is being specified imageFormat imageFormat 2 character strings imageFormat Record tag imageFormat Plot image format Available formats are png default and jpg Record 16c Radiation Plot Image Size This record is optional if a plot is being specified imageSize widthmm heightmm 1 character string 2 floats imageSize Record tag widthmm Plot width mm Default 150 mm heightmm Plot height mm Default 200 mm Record 16d Option for Longitudinal and or Lateral Modes This record is optional if a plot is being specified longLatOption longLatOption 2 character strings longLatOption Record tag longLatOption Option for plotting modes LongLat Longitudinal and lateral and modes will be shown with longitudinal modes in the left column and lateral modes in the right column default Long Longitudinal modes will be shown in a single column Lat Lateral modes will be shown in a single column 144 DRDC Atlantic TM 2011 307 R
206. s the time delay for integration ks is the derivative gain for mode j and if is the motion velocity in earth fixed axes for mode 7 Within SM3DBuildShip input autopilot gains should always be given in terms of earth fixed axes The simulation of a rudder control system including autopilot requires selection of suitable input values For a US Coast Guard cutter representative of modern frigate design Smith 22 indicates a maximum rudder deflection of 35 degrees and maximum rudder rate of 3 degrees per second For modelling of a conventional downward rudder using ShipMo3D the autopilot yaw gain and yaw velocity gain for a freely maneuvering ship will typically have values less than or equal to zero The natural frequency of rudder control systems is often significantly greater than the natural frequencies for ship motion modes thus a smaller time step is often required for rudder motions than for ship motions during time domain simulations The user can specify a maximum allowable time step for rudder motions to ensure reliable prediction of rudder motions 9 4 Propellers Non azimuthing SM3DBuildShip can model fixed pitch propellers as described in Reference 6 The thrust created by the propeller is modelled as pur 1 gt torop BRZ D Kr Jprop 21 prop where tprop is the propeller thrust deduction coefficient Nprop is the propeller speed in revolutions per second and Dprop is the propeller diameter The propeller thrust coef
207. scriptive note regarding input noteText character string noteText Text of note Multiple lines can be entered Record 3b End of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input end note 1 character string with 2 words DRDC Atlantic TM 2011 307 109 Record 4 Run Type runOption runOption 2 character strings runOption Record tag runOption Option for run Full Full run including panelling of tank NoPanel No panelling of the tank This run type can be used for checking of the patch tank Record 5 Patch Tank Input Option patchSloshTankInputOption patchSloshTankInputOption 2 character strings patchSloshTankInputOption patchSloshTankInputOption Record tag Option for run Box The tank geometry is described by dimensions for a box Record 6a is required BoxNarrowMiddle The tank geometry is described by dimensions for a box with a narrow middle portion in the horizontal plane This type of geometry is often used for roll stabilization flume tanks Record 7a is required PatchInputFile No panelling of the tank This run type can be used for checking of the patch tank Record 7b is required Record 6a Tank Box Dimensions boxDimensions lengthTank widthTank heightTank 1 character string 3 floats boxDimensions Record tag lengthTank Length along the longitudinal dir
208. slating earth axes horizontal plane coordinates in earth fixed axes linear sway yaw maneuvering force coefficient yaw velocity dependent nonlinear sway yaw hull force coefficient linear sway sway maneuvering force coefficient yaw velocity dependent nonlinear sway sway hull force coefficient sway velocity dependent nonlinear sway sway hull force coefficient vertical coordinate relative to ship baseline DRDC Atlantic TM 2011 307 tank Zbl Qaziprop Bs Yaziprop AT g udder jrudder jrudder grudder C Etank Etank CRPM a Nj nj Mi yslosh V U 0 0 Tmax TUtube to 06 n don height of sloshing tank bottom above ship baseline flow angle of attack for azimuthing propeller sea direction relative to ship appendage dihedral angle azimuthing propeller flow straightening coefficient retardation function time interval rudder deflection angle rudder velocity rudder acceleration command rudder angle fluid damping for sloshing tank peak fluid damping for sloshing tank propeller RPM response damping rudder nondimensional damping response constant motion displacement for mode j in translating earth coordinates ship motion displacement for mode j in fixed earth coordinates ship motion velocity for mode j in translating earth coordinates dimensional term for sloshing mode n wave direction from in earth fixed axes mean wave direction from in earth fixed axes water density vector of hu
209. ss 3712916 723 kg Roll gyradius 5 644 m Pitch gyradius 30 000 m Yaw gyradius 30 000 m 98 DRDC Atlantic TM 2011 307 Longitudinal modes Encounter freguency rad s 000 100 200 300 400 500 600 700 800 PPP BP OO GO OO GQ G G D OH KM KM KM KM KM KM KM M M KA KA KX HEER RER O O O O O O OO O 0 o o Surge Added Damping mass 019 020 020 022 024 025 023 019 015 013 011 010 009 008 008 007 007 007 007 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 007 007 006 007 007 O O O OO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO O O O OO OO OO OO OO OOOOOOOOOOOOOOOOOOOOOOOOOO DRDC Atlantic TM 2011 307 000 000 000 001 003 007 011 014 013 012 011 011 010 009 008 008 007 007 006 006 005 004 003 003 003 003 003 002 002 002 002 002 002 002 001 001 001 001 000 Heave Added Damping mass 429 645 TTT 543 972 239 214 181 182 186 298 272 341 356 357 416 413 442 449 465 472 487 508 534 546 589 401 HEER KA KA KA KA KK K KAK KAK A A EER K KA KK KK EER A A PE EER R EH KO ND GO OO HE BB PB Ha a Hs 507 O O O OO OOOOOOOOOOOOOOOOOOOOOBRPRHHRBERERNNNDNDNDHOOO 000 247 888 650 248 544 518 251 938 692 489 300 134 987 857 757 658 570 468 448 383
210. st important input parameters for SM3DPanelHull For typical ship geometries it is recommended that areaPanelLimit be selected such that the wet portion of the hull surface is represented by 200 500 panels on the port side SM3DPanelHull can produce plots such as those given in Figures 4 5 and 6 These plots are very useful for checking the quality of a hull model For the plots of the patch hull surfaces and hull panels the interior of the hull is black which can be useful for checking that hull normals are oriented correctly The SM3DPanelHull output file gives values for checking the quality of the panelled hull mesh such as normal ranges for hull patches The output file also gives closure errors for the hull in the x and z directions such as the following from the sample output file CHECK OF CLOSURE FOR COMBINED WET AND DRY HULL Calculated properties for checking combined mesh of wet and dry hull Closure error sum of area nx 0 183245 m2 Closure error approx front area 0 001146 Closure error sum of area nz 0 100498 m2 Closure error approx top area 0 000110 The non dimensional closure errors should typically be less than 0 01 16 DRDC Atlantic TM 2011 307 6 Radiation and Diffraction Computations SM3DRadDif Table 4 gives a summary of the application SM3DRadDif which computes hydrody namic forces due to added mass wave radiation damping and wave excitation from incident and diffracted waves Comp
211. t skegDragCo Record tag dragCoRef Drag coefficient 184 DRDC Atlantic TM 2011 307 Record 16c12 Skeg Damping Amplitude Decay Parameters This record is reguired if dragCoMethod has been set to AmplitudeDecay in Record 16c10 skegAmpDecay dragCoRef rollAmpRefDeg alphaDecayDragCo 1 character string 3 floats skegAmpDecay Record tag dragCoRef Reference drag coefficient rollAmpRefDeg Reference roll amplitude deg alphaDecayDragCo Reference drag decay coefficient This value should be gt 0 0 Record 16c13 Skeg Damping Velocity Decay Parameters This record is required if dragCoMethod has been set to VelocityDecay in Record 16c10 skegVelDecay dragCoRef roll VelAmpRefDeg alphaDecayDragCo skegVelDecay Record tag dragCoRef Reference drag coefficient rollVelAmpRefDeg Reference roll velocity amplitude deg s alphaDecayDragCo Reference drag decay coefficient This value should be gt 0 0 Record 16c14 End of Skeg Data This record must be entered at the end of data for a skeg end skeg 1 character string with 2 words Record 16d Beginning of Rudder Data Records 16d to 16d12 are optional and can be repeated for each rudder or rudder pair begin rudder 1 character string with 2 words DRDC Atlantic TM 2011 307 185 Record 16d1 Pair Option This record must follow Record 16d pairOption pairOption 1 character string with 2 words
212. t Input for static foil pair dimensions given for port foil Label Inner shaft bracket Key InnerBracket Station 18 000 Y of root 0 500 m Z root above baseline 2 500 m Span 3 200 m DRDC Atlantic TM 2011 307 225 Chord at root 1 000 m Chord at tip 1 000 m Dihedral angle 45 000 deg Hydrodynamic parameters Added mass option IncludeA 0 00 4 25 1 17 Wake fraction Lift coefficient slope Drag coefficient for normal flow Input for skeg Label Skeg Key Skeg Station yRoot ZB1Root m m 14 000 0 000 0 000 16 000 0 000 0 276 Added mass option IncludeAdde Drag coefficient method Ikeda Wake fraction Roll velocity ratio Input for rudder Label Rudder Key Rudder Station 19 000 Y of root 0 000 m Z root above baseline 3 600 m Span 4 800 m Chord at root 4 800 m Chord at tip 2 400 m Dihedral angle 90 000 deg Hydrodynamic parameters input Wake fraction 0 00 Flow straightening coefficient 0 60 Lift coefficient slope 2 93 Maximum lift coefficient 1 20 Drag coefficient slope 1 03 Drag coefficient for normal flow 1 17 Autopilot parameters Maximum deflection 35 000 Maximum deflection velocity 3 000 Maximum deflection acceleration 0 000 Response frequency 3 000 Response damping 0 850 Maximum time step 0 100000 226 ddedMass input O input 5 rad default 0 default span dihedral angle m deg 0 000 90 000 1 200 90 000 dMass input default 0 000 default
213. t follow Record 20a3 fluid heightFluid fluidDensity 1 character string 2 floats fluid Record tag heightFluid Mean height of fluid above tank bottom m This value should be greater than heightDuct and less than heightTotal fluidDensity Tank fluid density kg m The value will be 1000 kg m for a tank filled with fresh water Record 22 U tube Tank Nondimensional Damping This record must follow Record 21 damping dampingND 1 character string 1 float damping Record tag dampingND Nondimensional damping for tank fluid motion This value can most accurately be determined using physical experiments or computational fluid dynamics A value of the order of 0 1 is likely suitable 206 DRDC Atlantic TM 2011 307 Record 23 U tube Tank Maximum Time Increment This record can optionally follow Record 22 dtMax dtMax 1 character string 1 float dtMax Record tag dtMax Maximum time increment for evaluation of tank fluid motion in the time domain default 0 0 s If this value is set to zero then no limit is used i e the time step for tank fluid motion is the same as the time step for ship motion Record 234 End of Data for U tube Tank This record must be given at the end of input data for an azimuthing propeller end uTubeTank 1 character string with 2 words Record 23a End of Data for U tube Tanks end uTubeTanks 1 character string with 2 words Rec
214. t relative sea direction range of 0 15 30 180 degrees is suitable for any ship An input wave frequency range of 0 1 0 2 0 3 2 0 rad s usually is sufficient for the range of seaways encountered by full scale ships SM3DRadDif includes an option for suppressing diffraction computations The pri mary purpose of this option is to permit checking for irregular frequencies before proceeding with time consuming diffraction computations It is suggested that the following sequence be used when using SM3DRadDif for a new wet panel hull 1 Run SM3DRadDif with diffraction computations suppressed 2 Check output for irregular frequencies and re run SM3DRadDif with appropri ate thresholds on matrix condition numbers 3 Check revised output for irregular frequencies If irregular frequencies still exist repeat step 2 with revised matrix condition numbers If no irregular frequencies remain then run SM3DRadDif including diffraction computations As indicated above SM3DRadDif can produce plots of non dimensional hydrody namic coefficients and matrix condition numbers These plots are very useful when checking for irregular frequencies DRDC Atlantic TM 2011 307 19 7 Panelling of a Sloshing Tank SM3DPanelSloshTank Table 5 gives a summary of the application SM3DPanelSloshTank Table 5 SM3DPanelSloshTank Summary Purpose Creates a panel representation of the interior of wet sloshing tank and optionally of the dry slos
215. tardation functions DRDC Atlantic TM 2011 307 27 9 1 Hull Viscous Forces Viscous hull force input is given in the form of hull resistance coefficients for various speeds an eddy making roll damping coefficient and a lateral drag coefficient Ref erences 5 6 and 7 give further discussion of hull viscous forces The hull resistance force is evaluated as follows 1 presist p U U Aw Cpz U 16 where U is the ship speed A is the wetted surface area and CD is the hull resistance coefficient Hull eddy making damping at zero speed is evaluated by ull C 1 n u 1 TT CRL AVEF aS an Shull and na is the roll normal At non zero speed a speed correction factor is applied The hull eddy making coefficient has a default value of 1 17 the drag coefficient for a flat plate moving perpendicular to flow Note that hull eddy making damping is typically a small fraction of roll damping thus roll motion predictions are usually not very sensitive to the value of the hull eddy making coefficient where CO is the hull eddy making coefficient for roll Shuu is the wetted hull surface ShipMo3D can model hull cross flow drag as follows N Cross 1 Cross Cross gt Be O a TEE 18 i l where Nseg is the number of longitudinal segments along the hull for evaluating cross flow drag v is cross flow velocity Tay is the x centroid of the profile area of segment i Ay is the profile area of segment i and Cp is
216. ter frequency rad s at which fluid damping has its peak Above this frequency the damping factor is proportional to 1 omege 138 DRDC Atlantic TM 2011 307 Record 7 Options for Computing Hydrodynamic Coefficients This record is optional If the record is not included then default values will be used hydroCompOptions enFreqTrans rAreaThreshold rlmageAreaThreshold sourceGaussOption fieldGalerkinOption orderGauss 1 character string 3 floats 2 character strings 1 integer hydroCompOptions enFreq Trans rArea Threshold rlmageAreaThreshold sourceGaussOption fieldGalerkinOption orderGauss Record tag Encounter frequency threshold for determining whether the frequency dependent Green function is determined relative to the zero frequency Green function or the infinite frequency Green function default 0 0 Limit on R yA for exact evaluation of 1 R from a source panel to a field point default 20 0 Limit on R yAs for exact evaluation of 1 R from the image of a source panel to a field point default 20 0 Option for using Gaussian quadrature from source for determining frequency dependent portion of Green function NoSourceGauss Centroid of source is used SourceGauss Multiple points on source are used default Option for using Galerkin method with multiple points on field panel for evaluating Green functions NoGalerkin Centroid of field panel is used Galerkin
217. tered Record 3b End of Note Input Records 3 to 3b can optionally be used together to give a descriptive note regarding input end note 1 character string with 2 words DRDC Atlantic TM 2011 307 137 Record 4 Wet Panel Tank File Name wetPanelTankFileName wetPanelTankFileName 2 character strings wetPanelTankFileName Record tag wet PanelTankFileName Name of file describing wet panelled tank produced by SM3DPanelSloshTank3 This file is in NET binary serialization format Record 5 Sloshing Tank Radiation Database File Name sloshTankRadDBFileName sloshTankRadDBFileName 2 character strings sloshTankRadDBFileName Record tag sloshTankRadDBFileName Name of output file of sloshing tank radiation computations in NET binary serialization format Record 6 Fluid Flow Damping Factor dampingFactor dampingFactorPeak enFreqLowerDampingPeak enFreqUpperDampingPeak 1 character string 3 floats dampingFactor Record tag dampingFactorPeak Peak damping factor for fluid flow within tank This factor can be set to a value greater than zero to approximate viscous flow effects A value of 0 10 is recommended if no data are available to justify other values enFreqLowerDampingPeak Lower encounter frequency rad s at which fluid damping has its peak Below this frequency the damping factor is proportional to we wave encounter frequency enFreqUpperDampingPeak Upper encoun
218. the comment and continuation characters Sample input from a patch hull file begin hullLine station 0 yOffsets 0 000 0 357 1 250 2 342 4 427 6 636 8 848 zOffsets 11 060 11 end hullLine ShipMo3D applications include capabilities for plotting various entities such as a panelled hull geometry or results of radiation computations O amp KM H O 069 532 530 633 977 189 401 793 12 saved as images in png or jpg formats Detailed input formats and sample input and output files are given in Annexes A to E NON OH OO 633 671 739 253 465 677 NON H OO 125 12 121 740 812 751 530 742 954 166 164 0 857 10 950 806 018 230 10 DRDC Atlantic TM 2011 307 0 218 981 2 086 o 6 083 8 295 These plots can be Input and output file names have prefix PREFIX Input file name is INFILE 0 282 113 2 217 Pp 6 359 8 571 507 10 783 4 Coordinate Systems ShipMo3D uses both earth fixed and translating earth coordinate systems Figure 1 shows a ship in an earth fixed coordinate system The location of the ship centre of gravity in the horizontal plane is given by x y The direction v of incident waves is given using a from convention with 0 representing waves from north and 90 representing waves from east Ship heading y is given using a to convention with 0 representing the ship heading
219. tlantic TM 2011 307 79 Closure error approx front area Profile area 0 001180 437 284026 m2 Volumes based on integration over hull surface Integral of x nx Integral of y ny Integral of z nz 3619 230329 m3 3622 376730 m3 3622 357779 m3 X centre of volume based on integration over hull surface From integral of 0 5 x x nx From integral of x y ny From integral of x z nz Z centre of volume based on integration over hull surface Based on integral of z x nx Based on integral of z y ny Based on integral of 0 5 z z nz 0 028542 m 0 005379 m 0 000000 m 1 617896 m 1 620029 m 1 613653 m xxx PATCH PROPERTIES FOR DRY HULL Summary of patch panels Patch label Number of panels Total panel area Average panel area Minimum panel area Maximum panel area 25 483843 m2 1 274192 m2 0 514940 m2 1 805743 m2 Normal ranges minimum and maximum User input limits Actual nx 0 079 0 442 ny 0 821 0 995 nz 0 433 0 063 Patch label Number of panels Total panel area Average panel area Minimum panel area Maximum panel area 0 500 1 000 0 050 1 000 1 000 0 200 736 281122 m2 1 484438 m2 1 264752 m2 2 091978 m2 Normal ranges minimum and maximum User input limits Actual nx 0 059 0 351 ny 0 794 0 996 nz 0 559 0 084 80 0 500 1 000 0 050 1 000 1 000 0 200 Smooth hull from station 1 0 to 20 dry 20 port side o f hull Smooth hull from station 1 0 to 20
220. tude Operators for Operability Analysis Using SHIPOP2 The frequency domain application SM3DSeakeepRandom 1 can now write motion response amplitude operators in SHIPMO7 ASCII post processing format which can be used as input for operability analysis using SHIPOP2 18 DRDC Atlantic TM 2011 307 3 3 Overview of Using ShipMo3D for Creating a Model of a Ship for Predicting Motions The following applications can be used when creating a ShipMo3D model of a ship SM3DPanelHull Develops a model of the hull surface represented using triangular and guadrilateral panels Also computes hydrostatic properties for submerged portion of hull SM3DRadDif Computes hydrodynamic added mass and radiation damping for ship hull Also computes forces due to incident and diffracted waves SM3DPanelSloshTank Develops a model of the the surface of a sloshing tank represented using triangular and quadrilateral panels SM3DRadSloshTank Computes sloshing tank hydrodynamic added mass and ra diation damping SM3DBuildShip Builds a model of the ship including all components relevant to predicting ship motions ShipMo3D The ShipMo3D graphical user interface ShipMo3D30 exe for Version 3 0 can be used to prepare input data launch the above applications and view results SM3DPanelHull creates a panel representation of the wetted hull surface based on in put hull surface coordinates and load condition data SM3DPanelHull can optionally produce a pan
221. ube4mPatchSloshTank bin Wet patch tank data file name cube4mWetPatchSloshTank bin Dry patch tank data file name cube4mDryPatchSloshTank bin Patch Fitting Parameters input Maximum number of control segments in u direction nuMax Maximum number of control segments in v direction nvMax 0 010000 3 3 Nominal minimun segment length between control points Maximum order of B spline in u direction puMax Maximum order of B spline in v direction pvMax Plot output option File Wet panel file name cube4mWetPanelSloshTank bin Dry panel option DryPanel DRDC Atlantic TM 2011 307 40 40 131 Dry panel file name cube4mDryPanelSloshTank bin Fluid density 1000 000 kg m3 Height of fluid 2 000 m Tank panelling parameters Limit on tank panel area 0 100000 m2 Limit on aspect ratio 3 000000 Limit normal angles between panels 15 0 deg xxx PATCH PROPERTIES FOR WET TANK Summary of slosh tank patch exterior panels Patch label Bottom wet Number of panels 88 port side of hull Total panel area f 3 000000 m2 Average panel area 0 090909 m2 Minimum panel area 0 090909 m2 Maximum panel area 0 090909 m2 Normal ranges minimum and maximum Actual User input limits nx 0 000 0 000 0 010 0 010 ny 0 000 0 000 0 010 0 010 nz 1 000 1 000 1 000 0 990 Patch label Front wet Number of panels 42 port side of hull Total panel area 4 000000 m2 Average panel area 0 095238 m2 Minimu
222. um Actual User input limits nx 1 000 1 000 1 000 0 900 ny 0 000 0 000 0 100 0 100 78 DRDC Atlantic TM 2011 307 nz 0 000 0 000 0 100 0 100 Patch label Inner transom wet Number of panels 12 port side of hull Total panel area 1 383222 m2 Average panel area 0 115269 m2 Minimum panel area 0 115061 m2 Maximum panel area 0 115368 m2 Normal ranges minimum and maximum Actual User input limits nx 1 000 1 000 1 000 0 900 ny 0 000 0 000 0 100 0 100 nz 0 000 0 000 0 100 0 100 ok PROPERTIES FOR PANELLED WET HULL Summary of hydrostatic properties Number of panels on port side 613 Total number of panels 1226 Length between perpendiculars 120 000 m Draft of baseline at midships 4 200 m Trim of baseline by stern 0 000 m Beam based on maximum y value 14 111 m Volume 3622 358 m3 Water density 1025 000 kg m3 Mass 3712916 723463 kg Distance from FP to X origin m 61 750 m Origin located at LCG Station of X origin 10 292 Center of buoyancy wrt waterline E 1 614 m Wetted surface area 1753 438 m2 Waterplane area 1344 310 m2 X value of center of floatation 5 022 m Integral of waterplane area X 2 1234204 219 m4 Integral of waterplane area Y 2 17543 814 m4 KG height of CG above baseline E 6 000 m Height of CG above waterline 1 800 m Metacentric height from hydrostatics 1 430 m Calculated properties for checking of mesh Closure error sum of area nx 0 055205 m2 DRDC A
223. utations are performed in the frequency domain however results can be transformed to the time domain for subsequent computa tions Due to the complexities of ship hydrodynamic computations SM3DRadDif is considered to be the most computationally intensive of ShipMo3D applications The approach used for computing hull hydrodynamic forces is described in detail in References 2 and 3 Table 4 SM3DRadDif Summary Purpose Creates a database of added mass radiation damping and wave excitation forces for the ship in all conditions to be encountered in subsequent motion computations Run time Several minutes without wave diffraction computations Up to several hours with full wave diffraction computations Default input file radDif3 inp Default output file radDif3 out Sample files and file format Annex B Other required input Wet panelled hull created by SM3DPanelHull SM3DRadDif computes hull added mass and radiation damping for a range of en counter frequencies specified by user input Figure 11 shows computed added mass and damping for a naval frigate The input encounter frequencies should be selected such that the variation of added mass and damping with encounter frequency is captured for all 6 degrees of freedom The main output file from SM3DRadDif and optional plot files of hydrodynamic coefficients can be examined to determine whether a suitable range of encounter frequencies has been used Both the output file and plot files
224. utput Forward Speed Radiation Coefficients One of Records 17a 17b or 17c must be given speedRadCo speed 1 character string 1 float speedRadCo Record tag speed Ship speed for output radiation coefficients at forward speed m s Record 17b Ship Speed in Knots for Output Forward Speed Radiation Coefficients One of Records 17a 17b or 17c must be given speedKnotsRadCo speedKnots 1 character string 1 float speedKnotsRadCo Record tag speedKnots Ship speed for output radiation coefficients at forward speed knots Record 17c Ship Froude Number for Output Forward Speed Radia tion Coefficients One of Records 17a 17b or 17c must be given FroudeRadCo Froude 1 character string 1 float FroudeRadCo Record tag Froude Ship Froude number for output radiation coefficients at forward speed Record 18 Plot Option plotOutOption plotOutOption 2 character strings plot OutOption Record tag plotOutOption Option for making plots of hydrodynamic coefficients NoPlots No plots are produced ScreenFile Plots are both plotted on the screen and to a file Screen Plots are only plotted on the screen File Plots are only written to a file 92 DRDC Atlantic TM 2011 307 Record 19 Beginning of Radiation Plot Data This record is optional begin radPlots 1 character string with 2 words Note If this record is entered then it ca
225. w with ShipMo3D Input Dimensions for U tube Tank DRDC Atlantic TM 2011 307 37 10 Conclusions ShipMo3D applications can be used to build a ship model that can be used for predicting ship motions in waves A separate user manual 1 describes applications for predicting ship motions in the time and frequency domains 38 DRDC Atlantic TM 2011 307 References 1 10 11 McTaggart K A 2011 ShipMo3D Version 3 0 User Manual for Computing Ship Motions in the Time and Frequency Domains DRDC Atlantic TM 2011 308 Defence Research and Development Canada Atlantic McTaggart K A 2002 Three Dimensional Ship Hydrodynamic Coefficients Using the Zero Forward Speed Green Function DRDC Atlantic TM 2002 059 Defence Research and Development Canada Atlantic McTaggart K A 2003 Hydrodynamic Forces and Motions in the Time Domain for an Unappended Ship Hull DRDC Atlantic TM 2003 104 Defence Research and Development Canada Atlantic McTaggart K A 2003 Modelling and Simulation of Seaways in Deep Water for Simulation of Ship Motions DRDC Atlantic TM 2003 190 Defence Research and Development Canada Atlantic McTaggart K A 2004 Appendage and Viscous Forces for Ship Motions in Waves DRDC Atlantic TM 2004 227 Defence Research and Development Canada Atlantic McTaggart K A 2005 Simulation of Hydrodynamic Forces and Motions for a Freely Maneuvering Ship in a Seaway DRDC Atlantic TM 2005
226. wetPatchSloshTankDataFileName 2 character strings wetPatchSloshTankDataFileName Record tag wetPatchSloshTankDataFileName Name of file to be written with binary representation of wet patch tank Record 10 Dry Patch Tank Data File Name dryPatchSloshTankDataFileName dryPatchSloshTankDataFileName 2 character strings dryPatchSloshTankDataFileName Record tag dryPatchSloshTankDataFileName Name of file to be written with binary representation of dry patch tank Record 11 Patch Parameters for Fitting B splines to Surfaces This record is optional patchFitParam nuMax nvMax spacingMin puMax pvMax 1 character string 2 integers 1 float 2 integers patchFitParam Record tag nuMax Maximum number of control segments in u direction for fitted patch default 40 Must be in the range 5 lt nuMax lt 40 nvMax Maximum number of control segments in v direction for fitted patch default 40 Must be in the range 5 lt nvMax lt 40 spacing Min Minimum nominal spacing between control points on a fitted surface default 0 001 Liang This value must be lt 0 01 Liank puMax Maximum degree of fitted B splines in u direction default 3 pvMax Maximum degree of fitted B splines in v direction default 3 112 DRDC Atlantic TM 2011 307 Record 12 Plot Output Option This record is optional plotOutOption plotOutOption 2 character strings plot OutOption Record tag
227. xes can be added to default file names by typing p PREFIX as a command line option where PREFIX is the specified file name prefix e g the ship name Alternatively full input and output file names can be specifed on the command line Input file names can be specified by typing i INFILE as a command line option where INFILE is the specified input file name Similarly output file names can be specified by typing o OUTFILE as a command line option where OUTFILE is the specified output file name The command line option h shows any command line arguments associated with a ShipMo3D application The command line option e specifies that exceptions that occur during program execution should be fully written to the console Table 1 summarizes command line options ShipMo3D user input files are in ASCII format Each input line typically begins with a tag denoting the contents of the input line Comments can be inserted into a file using the character to denote a comment line or the beginning of a comment after other input on a line An exclamation mark denotes that an input line is DRDC Atlantic TM 2011 307 5 Table 1 Command Line Options for ShipMo3D Applications p PREFIX i INFILE o OUTFILE Output file name is OUTFILE h Help is written to output console e Execution exceptions are written to console continued on the next line Here is some sample input demonstrating the usage of
228. ximum Actual User input limits nx 0 054 0 018 0 100 0 100 ny 0 008 0 000 0 100 0 100 nz 0 999 1 000 0 900 1 000 xxx PROPERTIES FOR PANELLED DRY HULL Calculated properties for checking Closure error sum of area nx Closure error approx front area Profile area of mesh 0 127951 0 001131 731 177920 m2 m2 Volumes based on integration over hull surface Integral of x nx Integral of y ny Integral of z nz X centre of volume based on 8621 588224 8633 259613 8633 710695 m3 m3 m3 integration over hull surface From integral of 0 5 x x nx 1 333577 m From integral of x y ny 1 312184 m From integral of x z nz 1 312310 m Z centre of volume based on integration over hull surface Based on integral of z xx nx 3 051918 m Based on integral of z y ny 3 052404 m Based on integral of 0 5 z z nz 3 055420 m CHECK OF CLOSURE FOR COMBINED WET AND DRY HULL x x x Calculated properties for checking Closure error sum of areaxnx Closure error approx front area Closure error sum of area nz Closure error approx top area Computation time 2 s 82 combined mesh of wet and dry hull 0 183156 m2 0 001146 0 099616 m2 0 000110 DRDC Atlantic TM 2011 307 Annex B Files for Radiation and Diffraction Computations with SM3DRadDif3 B 1 Format of Input Radiation and Diffraction File for SM3DRadDif3 Record 1 Beginning Record begin SM3DRadDif3 1 character string with 2 words Record 2 Run Label
229. y domain SM3DBuildShip creates a model of the ship that can be used for ship motion predictions in either the frequency domain or time domain Resume ShipMo3D est une biblioth que objet avec applications utilisateur connexes pour la pr vision des mouvements de navires dans le domaine temporel et le domaine fr quentiel en eau calme et dans les vagues Le pr sent rapport sert de manuel de Putilisateur pour cr er des mod les de navire l aide de la version 3 0 du logiciel ShipMo3D Un rapport d accompagnement sert galement de manuel de Vutilisateur pour pr voir les mouvements de navires dans le domaine temporel et le domaine fr quentiel La version 3 0 du logiciel ShipMo3D introduit la mod lisation du bal lottement en citerne et de citernes a tube en U Plusieurs applications du logiciel ShipMo3D sont utilis es pour cr er un navire L application SM3DPanelHull cr e une repr sentation en panneaux des parties humides et s ches de la coque du navire L application SM3DRadDif calcule le rayonnement et les forces de diffraction agissant sur la coque humide en utilisant une m thode a l ments de contour L application SM3DPanelSloshTank cr e une repr sentation en panneaux d une citerne a ballot tement comme une citerne contenant une cargaison liquide ou une citerne antirou lis L application SM3DRadSloshTank calcule les forces de ballottement cr es par les mouvements dans le domaine fr quentiel L application SM3

ShipMo3D Version 3.0 User Manual for Creating Ship Models

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