tures in ANSYS Mechanical APDL R12.0
Contents
1. sharing of licenses among applications must be activated in the 104 Albq NM Workbench options It should be activated by default but the __ 7 9 7 10 205 ANSYS WB Simulation Dynamics ___ _Albq NM settings can be altered by clicking on Tools gt License Prefer P 73 7 14 801 ences from within the Workbench project window The appro 7 20 7 21 203 Dynamics priate setting is Share a single license between applications ____ 7 23 724 102 aeaoe 8 4 empe AZ 8 5 85 empe AZ New License Tasks 8 7_ 605 There are some new license tasks that didn t exist prior to eee version 12 0 The main ones involve the new CFD product ANSYS CFD The license task or name in the license file for ANSYS CFD is acfd This license task allows users to run either CFX or Fluent Note that in this case Fluent is labeled ANSYS Fluent as it s the flavor of Fluent intended to run with the ANSYS License Manager A related new license for parallel p processing is ANSYS CFD HPC which has a license task of acfd_par_proc There are several other new license tasks in the acfd family The Product Variable Table in the ANSYS 12 0 Licensing Guide lists those along with all of the other ANSYS products and their corresponding license task Tempe AZ Tempe AZ Tempe AZ 8 13 8 14 202 empe AZ 0 empe AZ 25 604 empe AZ empe AZ empe AZ Introduction to ANSYS Part empe AZ 201 empe AZ 204 2 empe AZ Las Veg N2. July 6 2009 Changing Table 1 Name Change Summary R12 NAME Mechanical APDL V11 Name ANSYS Classic Simulation Mechanical Project Page Project Schematic Note It was NEVER officially called Classic but it s what all the cool kids called it The Top 10 de irl iio e ki Be S A Publication for ANSYS Users Issue 70 Names with Release 12 By Doug Oatis A rose by another any name blah you didn t really think I d use Shakespeare in one of my articles did you That s way too high brow for me Instead we re going with the Simpsons to discuss name changes at ANSYS R12 In the classic episode Homer Simpson changes his name to Max Powers and gets near instant respect from his boss Mr Burns who before then could never remember everyone s favorite Sector 7G employ ee learn more here including the song Just like Homer err Max s new theme song you musn t fear the new name because it can be said by anyone The name changes at R12 reflect a new commitment to the user and an effort to maintain a more consistent naming convention with all the recent ANSYS acquisitions A quick summary of the name changes is shown in Table 1 While these name changes don t appear to do much the renaming of the Traditional Classic ANSYS interface to Mechanical APDL should reassure many users There has long stood a fear that the old interface that users had writt
3. l 7 Results P 7 Results Ta To transfer data for initial conditions or coupled field analysis right Static Structural ANSYS Transient Structural MBD click the Solution cell of the originating analysis select Cont on pg 8 Figure 6 Sharing Cell Data www padtinc com T7 1 800 293 PADT July 6 2009 The Focus Issue 70 1 i Steady State Thermal ANSYS 2 Engineering Data 3 Geometry LF 4 Model Fa 5 su aw 7 rc Results v B State Thermal By Electric ANSYS 2 Engineering Data Y ga 2 amp Engineering Data LE Mechanical APDL 3 Geometry 1 3 O Geometry oe Shape Optimization ANSYS _ mS 4 Model P 1 1 Model manea gt P Pa SA Transient Structural ANSYS S Setup S 4 S w Setup F 4 FR Transient Thermal ANSYS 6 amp Solution Pu 7 Results v4 7 Resuts Ti Steady State Thermal ANSYS Static Structural ANSYS Figure 7 Thermal Stress Schematic Schematic Cont Transfer Data To New gt and select the appropriate analysis from the flyout menu For example to apply steady state thermal results as structural temperatures right click the Solution cell in the Steady State Thermal analysis system and select Transfer Data To New gt Static Structural ANSYS as shown in Figure 7 Note that the Custom Systems list already contains a number of pre defined initial conditions and coupled field setups which may save you some effort Note that each link has a
4. you should It covers a lot of very powerful ways to expand the program s capabilities 3 New Modern Pipe Elements It can sometimes be hard to get excited about pipe elements unless you do a lot of simulations that involve pipes But the older pipe elements in ANSYS were starting to show their age even though they started out as workhorse elements in early versions of the program With PIPE288 289 and ELBOW7290 the new modern element formulations have been used to create these very capable elements They include features such as non linear formulation that is consistent with all new generation elements plane stress or full 3 D representation cubic shape functions PIPE289 3D visualization and greatly improved hydrodynamic loading The elbow is for modeling curved pipes and uses shell theory and Fourier functions to allow the cross section to distort It also supports composites multiple layers and all of the features found in the PIPE288 289 Even though it is called an elbow you can use it to model straight pipe segments that have layers or undergo loading that may cause the cross section to distort 2 Contact Enhancements Generalized contact has changed the way most people do FE modeling and analysis and with each release it gets more useful and more general At R12 a lot of work went into increasing the efficiency of contact simulation and adding functionality The change that will benefit most users are the enhancements to perfor
5. 1 em Li 25 erm L2 i j 2 erm_Dio n j 3 2s 1 0 025 1000 0 125 7 a 0 25 rT 4 25 o 02s 1000 T 1 28341 13 281 7 FLD ie 25 o 025 1000 0 08 7 esz 0 125 2s 0 0 25 3000 0 08 LIAL T 7 25 0 925 1000 0 02 4 20 l 1 Equrv alent ress M ssi 3 NNO He 5 1 D s gt Owt0 16 E Cuts 326 Parameter Chart 0 34 Ain x came a 206 2 3 dude Current Design Do m 286 4 x s Bottom P ena aa x s Top f 276 Y s Len ind 002 oo 0 O48 009 006 oo o os ooo o1 ou ow 7 Y as ght P ESZ s gr Re pene ee SE Ab Show 22 Messages Figure 10 Parameter Manager in WB 2 0 Issue 70 Schematic Cont In R12 0 the Engineering Data only consists of material properties Load data is managed in indi vidual applications This will change in future appli cations as Engineering Data eventually incorporates all of the data it contained previously The new Engineering Data tool exposes all material data in a single level such as tabular properties material data charts libraries current materials and so forth The interface 1s managed by incorporating the Work bench 2 0 paradigm of dropping predefined toolbox items into the model The Parameter Manager has also been updated to Workbench 2 0 format and acts as a global parameter manager for all of the Workbench modules Expos ing a parameter in an application automatically sends it to the Parameter Manag
6. here or at your facility lt link gt e Leverage our APDL knowledge with the APDL Guide lt link gt e Consider one on one support through mentoring a great way to get a quick start on something new lt link gt e Attend a PADT Webinar lt link gt A Free Joke A lead hardware engineer a lead software engineer and their program manager are taking a walk outdoors during their lunch break when they come upon an old brass lamp They pick it up and dust it off Poof out pops a genie Thank you for releasing me from my lamp prison can grant you 3 wishes Since there are 3 of you will grant one wish to each of you The hardware engineer thinks a moment and says I d like to be sailing a yacht across the Pacific It is done said the Genie and poof the hardware engineer disappears The software engineer thinks a moment and says I d like to be riding my Harley across the American Southwest It is done said the Genie and poof the software engineer disappears The program manager looks at where the other two had been standing and rubs his chin in thought Then he tells the Genie I d like those two back in the office after lunch www padtinc com 10 1 800 293 PADT
7. in future issues of The Focus as we learn more ourselves 5 General Axisymmetric Elements These new elements didn t make the first set of lists because we had not gotten a chance to really explore them fully But now we have and we see a lot of potential with the new SOLID272 273 for simulation of rotating stuff The way they work is that you define a 2D mesh on any plane yea Not just XY anymore with X radial defined by a local CSYS which also defines the rotational axis Next you specify the number of nodes you want tangentially and generate the elements This gives you a 3D representation and nodes that you can apply loads and constraints to yea No more real imaginary harmonic stuff It can also be used to transmit torque So if you have axisym metric geometry but non axisymmetric loads or you have more than one axisymmetric part that do not share a common axis these elements are worth checking out vg KAA OO eee KINAA 4 Programmers Manual Available On Line Again not a major deal that is going to change the way people do simulation but a change that makes a lot of sense and most importantly shows ANSYS Inc s commitment to advanced users In the past if you wanted to learn about customization and user routines you had to purchase the Programmer s manual which was often several releases out of date That manual is now available as part of the help system and everyone has access to it If you never looked at it before
8. square or a circle at the end The square indicates that data is shared between systems In Figure 7 both thermal and structural models have the same materials geometry and mesh A circle at the end of a link indicates that data is transferred from one cell to the other In this same figure the resulting steady state temperatures from the thermal model are applied as structural temperatures in the static structural model As before it is possible to solve each analysis separately within its respective module However clicking the Update Project icon 7 Update Project will update each module as applicable and solve all models throughout the schematic A typical analysis approach within the Workbench 2 0 interface would be to set up meshes and apply loads within their respective modules then solve all analyses by updating the entire project With the Project Schematic there is no limit to how many cells can be linked and how many analyses can be coupled together For v B Y Cc 1 Fluid Flow CFX 1 i Steady State Thermal ANSYS Static Structural ANSYS 2 Geometry 2 Engneering Data v ya 2 amp Engneering Data 4 ya 2 amp Engnering Data ey 3 Mesh ip oat 483 Geometry a O Geometry Pe 4 Setup 4 Mode Pl Mode a Modd Pe S Solution P OS amp Setup Pa Sep 47 Setup 7 6 Reutts a 6 Solution Lone 6 Sdlution Pi 6 Solution ae Fluid Flow 7 Results wi 7 Results T 7 Results T Steady St
9. S license administration Instead the new Server ANSLIC_ ADMIN Utility is the ANSYS Inc supplied tool to administer the licenses on the server computer Finally note that the ANSYS Licensing Interconnect involves an additional port number 2325 which must be allowed to pass through any firewall on the network This is in addition to the normal ANSYS FLEXI m port defaults to 1055 and any ANSYS vendor port that may be added on the server Cont on pg 3 www padtinc com 2 1 800 293 PADT July 6 2009 The Focus Issue 70 Licensing Cont License Administration Choices for the Server When the ANSYS 12 0 license manager is installed the default choice is to run the ANSYS Licensing Interconnect and FLEXIm together This choice will suit most installations where the ANSLIC ADMIN utility is used to administer ANSYS licenses Alternatively for companies that prefer to administer ANSYS licenses along with other FLEXI m served utilities with a non ANSYS tool such as FLEXnet Manager there is another choice in the installation process which allows for the ANSYS Licensing Interconnect and FLEXIm to run separately Note that either way the ANSYS Licensing Interconnect must be installed or it will not be possible to run the 12 0 version of ANSYS products Client User License Configuration On client machines once ANSYS 12 0 is installed the process to point the client to the server machine is similar to prior versions The user runs the Cl
10. V 0 6 _ 302 empe AZ oe o0 ee N oe 0 Sz 4 6 o0 NIO 3 8 Ofo m a olojo AJN O ol gt S O For More Information The ANSYS 12 0 Licensing Guide has extensive documentation on the license manager its installation usage and troubleshoot ing There are also some FAQ s available on the Fluent User Services Center yes they apply to the ANSYS License Manag er at https secure fluent com sso2 login htm You will need your ANSYS Customer Portal login to access that link g Oct Z O 9 107 empe AZ 651 empe AZ 10 21 902 Tempe AZ The Focus is a periodic publication of Phoenix Analysis amp Design Technologies PADT Its goal is to educate and entertain the worldwide AN 4 slalla lalalalalalala 3 3 3 3 3 O ge O JS o 0O 72 0 gt iq iq cq OM Ko 0 N N N Ri Ri N x D T 8 2 8 2 8 27 9 9 9 14 9 17 9 21 9 23 9 2 9 2 10 5 10 7 10 9 10 10 0 19 1 1 1 1 SYS user community More information on this publication can be found at www padtinc com 3 1 800 293 PADT July 6 2009 The Focus Issue 70 Top 10 Cont The command is a standard get get parm MODE n PFACT DIREC dir You specify the parameter to store in parm the mode you want the factor for n and the global direction dir which can be X Y Z ROTX ROTY ROTZ We recommend you store the values in an array Here is a sam
11. ate Thermal ANSYS Transient Thermal ANSYS Static Structural ANSYS m Static Structural ANSYS 2 6 TurboMesh 7 2 Engnesring Data aP TurboGrid 3 Geometry LF 4 Moda y 5 Setp 7 6 Solution Ler 7 Results P Static Structural ANSYS Figure 8 Seriously you can go nuts with this thing instance the schematic not only provides a simple method of conducting thermal stress or conjugate heat transfer analyses you can also use the resulting temperatures from a conjugate heat transfer analysis as thermal loading in a structural analysis and so on The new Workbench Project Schematic reflects a migration to Workbench 2 0 and is therefore a Workbench native application On the other hand DesignModeler Mechanical and other modules are still at Workbench 1 0 though they are Workbench 2 0 compliant In addition to the Project Schematic Engineering Data and the Parameter Manager have been updated to Workbench 2 0 native format Eventually all Workbench modules will be upgraded to 2 0 and capabilities will continue to be consolidated r 7 ont on pg www padtinc com 8 1 800 293 PADT July 6 2009 The Focus Fle Edt Ve Tous Unt Heb ne BF Open ied Seve Ul Sove As i Refresh Project J Update Project gh Import 9 Update Al Desg Ponts Reren to Project Outine of Al Parameters 2 E input Por 3 2 3 2 3 3 5 a b 5 a Ne lost jos E Prey AEAENENE NENE Ihaha taba babakat J K t
12. en countless macros for would eventually go the way of the dodo Having the name Classic was interpreted as the first nail in the coffin renaming it to Mechanical APDL is ANSYS s Conna Most Important New Fea By Eric Miller There is a lot to talk about when it comes to new capabilities and features in this recent release of ANSYS 12 0 and PADT will be spending the next bunch of issues of The Focus digging deep into the ones we think are important But that is going to take a while so we decided to start with a Top Ten List We promise there will be no jokes about Sarah Palin s daughter Based on our readership we felt that the first place to start was with our favorites from ANSYS Me chanical APDL the program formerly i and incorrectly referred to as ANSYS In this Issue tures in ANSYS Mechanical APDL R12 0 Classic AE Changing Names with Release 12 s ee 10 GET of Participation Factors 4 The Top 10 Most Important New Fea This is not earth shattering and will not open up any new more accurate simulations tures in ANSYS Mechanical APDL of exciting and challenging industries But it is one of those things that has been R12 frustrating as all heck for years In the past when you did a modal analysis you 2 eae Getting to know R12 Licensing could only get participation factors by extracting them from the out file This is doable but a bit of a pain if you are running batch but if you are runni
13. er The Parameter Manag er can be used to conduct what if studies between input and output variables It also allows the user to perform mathematical operations between parame ters among other capabilities Like the Engineering Data tool it contains windows for tabular input and output as well as x y charting capabilities To return to the Project Schematic from Engineering Data the Parameter Manager or any other Workbench 2 0 tool click on the Return to Project button Retur to Project Rather than individual database files the entire Workbench project is saved The file structure con sists of a master project file wbpj and a series of associated subfolders containing the modeling data bases and analysis files Since the file structure is so complex Workbench projects should be transmitted by first archiving the project to a zip file File gt Archive and then unarchiving the zip file File gt Restore Archive when it reaches its destination You may view all of the files associated with a project and their descriptions by clicking View gt Files Additional details about Workbench 2 0 tools such as Engineering Data and the Parameter Manager will be covered in more detail in future Focus articles Also look for articles discussing Workbench project file management ANSYS Inc has put significant effort smoothing the transition to Workbench 2 0 by making a number of tutorials available at their customer portal which yo
14. er involves software called the ANSYS Licens This gets installed when the 12 0 version of the ANSYS license manager is installed on the license server computer The ANSYS Licensing Interconnect ing Interconnect software is required in addition to the traditional FLEXIm software for nearly all ANSYS applications to run at version 12 0 Unlike prior versions of ANSYS the client machine no longer contacts FLEXIm directly for license communication At 12 0 the client contacts the ANSYS Licensing Interconnect which in turn makes contact with FLEXIm The purpose of the ANSYS Licensing Interconnect is to allow sharing of a single license among multiple ANSYS applications by a single user An example of that would be the use of a single Multiphysics license for a meshing session as well as a structural solution along with perhaps a CFX solution All of this can be accomplished with a single ANSYS Multiphysics license With Workbench 2 0 the processes are all linked and the license is switched from one application to the next as needed The ANSYS Licensing Interconnect allows for this sharing of the license to be much faster than would be possible with just the FLEXIm component of the license administration When the ANSYS 12 0 license manager software is installed on the license server machine it will remove any previous versions of the ANSYS license manager software Also for Windows servers the FLEXIm LMTools utility is no longer available for ANSY
15. gt Project C Compact Mode OE si X Any of these Toolbox objects may be inserted into the Project a ansyss systems M Electric Ansys Schematic The Project Schematic is where modules and spiet oynames auroom GB Explicit Dynamics LS OYNA 1 1 Fluid Flow CFX analyses are managed To insert a Toolbox system into the Maren Project Schematic simply double click or click and drag the Lack s E Magnetostatic ANSYS desired system into it Figure 2 shows a Static Structural mosa cansvs z Random Vibration ANSYS R Spectrum ANSYS Analysis ED Shape Optimization ANSYS Garaan oo 9 Steady State Thermal ANSYS Thermal Electric ANSYS GA Transient Structural ANSYS spreadsheet like cells Itis from these cells that each aspect E transient stnseturai neo E Transient Thermal ANSYS of the analysis is controlled In this case Engineering Data component systems Custom Systems x provides access to the material properties The Geometry cell can be used to launch DesignModeler import a saved E Show Progress 9 Show o messages CAD file or attach an active CAD model Figure 2 Static Structural Analysis Schematic Z Static Structural ANSYS g Engineering Data 4 w Geometry e 4 Model Pi setup Pa Solution ae Resutts wg Static Structural ANSYS Yana ON mq Note that the analysis system is organized in a column of Cont o
16. ient ANSLIC ADMIN utility Specify the License Server Machine option The client machine is specified along with the appropriate port numbers License Files Is a new license file needed to run version 12 0 In general no As long as the TECS technical enhancements and support expiration date in the license file is later than the release date of ANSYS 12 0 April 1 2009 the license file will work with version 12 0 License Manager Service Pack Note that a service pack has been released for the ANSYS License Manager for license server as well as client machines The original installation may not allow licenses to be shared among applications properly in certain situations An error message stating that the licensed number of users has already been reached may appear The license manager service packs which includes a complete license manager installation for the server and an executable replacement for client machines resolves that problem In order for the license server service pack to be installed the original version should be uninstalled using the instructions provided with the service pack download then the service pack should be installed On the client machines the required executable needs to be replaced with the new version License Sharing In order for the aforementioned license sharing for a single user PADT s Training Schedul to work between multiple Workbench editors or modules the Month Start End Tite Location
17. is not far off from the text on a booth a show we recently attended yuck Getting serious now we are company with a little over 50 engineers technicians sales people business task doers and infrastruc ture keep things running guys who provide hardware software and technical services to companies who make mechanical products We do this by having three departments whose staff focus on one of three areas Numerical Simulation Product Development and Rapid Manufacturing We work in almost any industry and around the world Many perspective customers ask us how we have been able to grow over the past 15 years and keep such a loyal customer following We would like to say we have a snazzy mission statement that everyone works by but in reality we just try to follow the core principals that we founded the company with e Establish a high level of integrity e Use the best people e Learn your tools inside and out e Synergistically combine disciplines e Provide flexible solutions of a higher quality in less time for less money It is that simple We are run by a bunch of engineers and anything more complex or sophisticated would be too hard to remember and more importantly go against our inner nerds Come back to this page over the next couple of issues to learn more about each of PADT s departments and maybe we can work together in the future Need ANSYS Help PADT can help in many different ways here are a few e We hold training
18. mance including a new search algorithm not storing far field contact status and faster computation of contact assembly and results Another change that will be awesome for people that need it is the addition of a fluid pressure penetration load Basically this allows you to specify a pressure on both sides of a contact surface and when the contacts open the pressure gets applied This is a quick way to model a pressurized fluid penetrating the opening and forcing the parts apart Beyond these two big changes there is also the ability to define friction in terms of two independent fields temp time pressure sliding distance sliding velocity etc instead of just one a new userfric f routine that is much easier to use than the old set of routines and debonding that has been expanded to cover all of the different types of bonded contact not just Always Bonded 1 General Solver Speedup Everyone wants things to go faster and users expect to see improvements in every release But in R12 there have been a lot of significant enhancements that are worthy of making this our number one choice because time is money Almost every area of the code was looked at and tweaked in some way to get things faster and some are mentioned above There is a whole section in the release notes 2 7 dedicated to all the Cont on pg 6 www padtinc com 5 1 800 293 PADT July 6 2009 The Focus Issue 70 Top 10 Cont changes too man
19. n pg 7 www padtinc com 6 1 800 293 PADT July 6 2009 The Focus Issue 70 nee eee za Schematic Cont ite rey T hehe The Model Setup Solution and Results cells all control meshing Double click or right rom ane Ghote ew Ont Breuer Gerd Sout Crore Pernan a Gare mi aw Geomaty EER y boundary condition application solution settings and results view New Geometry awe 2 Engineering Data ing in Mechanical formerly know as Simulation 5 Senp Import Geometry 6 Solution ia Dupicate z Cane 7 Rests ae ae es Note the symbols to the right Fiiiiadilisisilsstasihos State Sbuctral ANSV Transfer Data To New inlata of each cell A check mark General Cell ID Geometry Source Geometry File Name Basic Geometry Options indicates that a cell is completely defined Be aware that as before the Mechanical material defaults to structural steel A ques tion mark indicates that data needs to be defined e g geometry needs to be at tached or created The cir 2 Engineering Data v Double click or 3 Geometry vZ a rightclick gt Edit Solid Bodi odies Surface Bodies 6 Solution 7 Results Static Structural ANSYS Transfer Data To New Line Bodies Update 2 Refresh Parameters Parameter Key Attributes Named Selections cling arrows indicate that a cell needs to be re freshed e g a model needs t
20. ng interactive 6 ee Navigating the WB 2 0 Project Sche matic you can scroll right past them and they do not get stored in the buffer The figure at the beginning of this article shows a modal analysis that put participation factors 10 About PADT in the plot Download the macro here lt LINK gt www padtinc com Cont on pg 4 1 1 800 293 PADT July 6 2009 r a et i Se i jae ee ees ee e a f A ct eee This one goes to The Focus Issue 70 Names Cont way of removing that nail So relax all you APDL power users your batch centric mode of operation is here to stay The other name changes aren t Earth shattering but may be important when calling your support provider to tell them where you re having problems It should also be noted that Mechanical APDL and Mechanical should not be confused with the Mechanical license ansys increment As a last note I would like to have a moment of silence for the This one goes to 11 joke we used when discussing V11 I can personally attest to its 15 success rate at making people laugh I guess along with employing a large group of left handed people PADT also employs the majority of Spinal Tap fans It was good while it lasted but fear not I ll compensate with even more obscure cultural references Getting to Know R12 0 Licensing IMPORTANT Any changes made using this ANSLIC_ADMIN option could affect other user
21. o be refreshed to reflect Material Properties Advanced Geometry Options Analysis Type Figure 3 Accessing Workbench Modules Use Associativity Import Coordinate Systems Import Work Points Reader Mode Saves Updated File changes in geometry A lightning bolt d indicates that the cell needs to be updated e g a solution needs to be performed Import Using Instances Smart CAD Update To launch a module simply double click the appropriate cell or right click and select Edit For SE EEEE T OSER TE REE example to launch DesignModeler double click the Geometry cell To launch 24 Mixed Import Resolution N v Mechanical Simulation double click the Model cell within the Static Structural analysis system Figure 4 Geometry Properties Once you re within the geometry and analysis modules the interface is almost the same as in version 11 0 Each cell has a set of properties associated with it such as geometry import options or solution settings Though the properties are hidden by default it s recommended that you turn them on by clicking View gt Properties since they provide a relative unobtrusive method of viewing and adjusting your cell settings When turned on the Properties window may be found on the right side of the Project Schematic So what s the deal with this spreadsheet layout Note that the cells are all referenced in their corresponding locations within the modules Figure 5 The spreadsheet o
22. ore realizing that you have to celal install the new license manager too you find yourself salivating like Mark Sanford in a Buenos Aires tango club as you launch Workbench 2 0 for the 3 corpete first time As the splash screen gives way to the application you re greeted by a large blank field with a list of analysis types perched to the left It s nothing you ve ever seen before Pausing you contemplate the flask of bourbon residing in your hollowed Figure 1 Well this is Different out Marks handbook However once you examine the Workbench 2 0 capabilities you ll appreciate its advantages including its process centric approach its physics neutral format its ability to share common utilities across applications its multiphysics capabilities its global parameter manager etc The Workbench 2 0 interface consists of two main windows the Toolbox and the Project Schematic The Toolbox consists of complete analysis applications such as static structural transient thermal and fluid flow analyses These applications include material properties geometry mesh boundary conditions and results All of these are found under Analysis Systems There are also component systems consisting of stand alone tools such as Unsavec j Project Workbench 10j xj geometry creation and CFX postprocessing pie ore Lore SIU New J Open ind Save WAlSave As eReconnect se Refresh Project Update Project yf Import
23. ple APDL code fragment that works well nmd 10 dim pfct nmd 6 xdim adir char nmd adir i Ixi fyi 17 TROTX ROTY AROTZ xdo i 1 nmd do ly Ly 6 get pfct i j mode 1i pfact direc adir j enddo enddo 9 Four Noded Tets One of the first things I learned when tet meshers became common was that you should never use 4 noded tetrahedral tet elements They were too stiff especially when distorted Well that is still true for most 4 noded Tets but when you do large deflection non linear simulation with 10 noded Tets you often run into problems where the mid side nodes fold in to the Tet and cause the dreaded error in element formulation error ANSYS s solution the new SOLID285 is a 4 noded Tet with mixed u P formulation It has the standard three DOF s at the corner nodes UX UY UZ and also three internal DOF s that get condensed out The shape function is linear As you would expect it does not perform well in bending and the User Manual actually says The element may not offer sufficient accuracy for bending dominant problems especially if the mesh is not fine enough But it does perform well for situations that do not have a lot of bending but see large deflections This feature is important but not in the top 5 because its application is somewhat limited 8 Performance Enhancements to Modal Superposition In the past if you had a large model and you wanted to do some sort of modal superpo
24. r that is more modern has powerful search capabilities __ and can support help for the entire ANSYS Inc product line It is however different and ine om some capabilities have gone away so there are more than a few users here at PADT that 2a Stepped Ve meee curse when using the new help But after you get used to it you can find things faster It will a a a 7 omens alee support the continued growth of ANSYS products over time with one consistent viewer kiii for all products 6 APDL Math If you work in a company that has a few seats of NASTRAN or like us try to sell NASTRAN users ANSYS you know that one of the things that NASTRAN diehards cling to is a module called DMAP This is a way to stop a solution extract matrices modify or add Cont on pg 5 1G Div D22 D23 Da c25 gt c2e 2BD gt Ihe KBC commanc Mam Menu gt Solution gt Load Step Opts gt TimeFrequenc gt Freq amp Substeps gt Transient Tab Mam Menu gt Solmion gt Load Step Opts gt TimelFrequenc gt Time and Substps www padtinc com 4 1 800 293 PADT July 6 2009 The Focus Issue 70 Top 10 Cont to them put them back into the solver and continue on with the solve ANSYS is taking its first steps in this area with the introduction of a beta feature called APDL math It is still not finished and requires a lot of user input before it is done but 1s an important first step Look for more information on this
25. rganization also provides the structure for linking cells and systems for sharing and transferring data These linkages enable the following capabilities e Sharing specific data such as geometry or material properties e a A 21 Engineering Data Y 4 amp Modefiaa e Providing initial condition or prestress data for analyses such as EO coomo 2 h A Geometry prestress modal analysis static gt modal random vibration 2k Coordinate Systems ror l Eps l 5 A gt Mesh modal gt random vibration or transient thermal initial condi 5 amp setup 2 static structural A5 tions steady state gt transient thermal 6 Solution LE y Analysis Gettiogs z5 Solutio e Enabling coupled field analyses such as thermal structural fluid 7 Resuts P a A Solution Tnformatior Static Structural ANSYS structural interaction FSI and conjugate heat transfer f Figure 5 Analysis Cell References To share individual analysis components see Figure 6 v A v B 1 Drag amp Transient Structural BD 1 Make sure that all analysis systems of interest have been inserted t Drop aai i 2 Engineering Data vV a2 Engineering Data V into the Project Schematic 3 Geometry z 3 Geometry o 2 Drag and drop the data to be shared from the origination cell to the 4 model a 4 Model a destination cell 5 Setup Pa S Setup Pi 3 Repeat as needed 6 Solution P 6 amp Solution Ta
26. s running from this i ion The ANSYS Inc License Manager consists of two components The ANSYS Licensing Interconnect component component Installation Directory C Program Files ANSYS Inc List of ANSYS Licensing Interconnect and ANSYS FLEXIm server machines currently specified 2325 1055 pooch Move up Move down Definition of columns in the server machine list above Host Information HOSTNAME cobra FLEXID 0016e685ba6a IDTYPE E PLATFORM Intel Edit Selected Server Machine Delete Selected Server Machine OS Windows NT 2000 xF related Be FD Find in Page 2 installingt Chapter 2 Installing the ANSYS License Manager Windows License Server installation Notes The cansing installadon on a Windows Sal necessary licensing files into the Prograu Files ANSYS Inc Shared Files directory located onthe same By Ted Harris The licensing scheme has changed a bit at ANSYS 12 0 While the license files are essentially the same and FLEXIm is still used to allow the licenses to float within a network there are a couple of changes that users and license administrators should be aware of Primarily new license manager software needs to be installed on the license server machine before ANSYS 12 0 can be activated Other changes include some new license tasks at version 12 0 The ANSYS Licensing Interconnect First the new ANSYS 12 0 license manag
27. sition or PSD things could sometimes get slow So ANSYS Inc took a look at the whole process and made some changes under the hood One of the most significant was to store the eigenvectors shapes for each mode in the MODE file in node order Why is this important Well in the past the information was simply extracted from the RST file But the calculations require the deflection for a given node across all the modes at the same time So the program had to skip through the RST file looking reading the value for each mode for a given node Now that info is written in the MODE file in node order so all the values for every solved mode are grouped together by node in the file making the reading of that information much faster Another speed up is the ability to reuse the stress results from the modal analysis if you expand the z stresses And lastly if you are doing a PSD with only single point base excitation the program NO tectonic ike mr mT longer does a static solution as part of the solve This is required for multi point excitation and _ was therefore done in the past but now the program checks and skips it if it can These are very Shallow welcome changes a ANNA Ny 7 New Help Viewer This may be the one controversial choice on this list I ve taken a lot of grief from experienced users for supporting this change but the more I use it the more I like it This new release contains a Java based help viewe
28. u may find at www l ans yS com customer chemical reaction in their flow models lt link gt compatibility testing lt link gt www padtinc com 9 News Links Info Two Time America s Cub Winner Alinghi Chooses ANSYS Products to Help Defend the Cup lt link gt ANSYS offers free link to CHEMKIN CFD chemical solver for FLUENT users a must have for people modeling Ansoft side of things release new version of SiWave software for signal integrity power integrity and electromagnetic A couple of great issues of the ANSYS magazine have been published since the last The Focus lt link gt 1 800 293 PADT July 6 2009 The Focus Issue 70 Phoenix Analysis amp Design Technologies f NT Dn A A P a r In the past we have finished up The Focus with a page we called Shameless Advertising The truth was that the page was really only advertising PADT and PADT related things So instead of doing advertising we thought we would just dedicate the final page to explaining who PADT is what we do and how we can hopefully help you And to make sure you read it we will try and stick something funny in Want to know more Call Stephen Hendry at 207 333 8780 or e mail steve hendry padtinc com What is PADT s Business PADT is dedicated to synergistically bringing leading edge resources to win win customer vendor partnerships to enable success in mission critical situations Blah Blah Blah actually that
29. y to list here But summed up we are seeing noticeable improvements in most solves that we are doing and usually less memory This is a change that will benefit everyone As mentioned at the top this is just a quick overview of the to 10 things that PADT thinks are important in ANSYS Mechanical APDL and in the next issue we will share our thoughts on the most important changes to the Workbench side of things But do not take our word for it Take a look at the release notes review PADT s R12 seminar PPT s or attend a seminar with ANSYS Inc or your channel partner There is a lot of good stuff there waiting for you to find it Useful R12 Resources ANSYS Inc Website www ansys com products ansys12 new features as New Issue of ANSYS Advantage www ansys com magazine default as ANSYS R12 Tutorials PowerPoints and FAQ httos www1 ansys com customer content ansys12 as PADT s R12 Seminar PowerPoints ftp padtinc com public seminars 2009 06 10 R12 NewSTuff zi a a E E Navigating the WB 2 0 Project Schematic X Unsaved DEEE BAE By Jeff Strain You an ANSYS user who while quite experienced with the Classic interface have also explored the Workbench products extensively to ensure Explicit Dynamics ANSYS ae you re taking full advantage of the analysis tools at your disposal After Brennan several hours of downloading and installing the ANSYS 12 0 release then cnn going back and forth with tech support bef
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