Reliability Manual v 0.1
Contents
1. 1 1 1 DDDX DATA SIMPLE TEST WITH TWO LINEAR FAILURE FUNCTIONS AND TWO VARIABLES COMPONENTAL AND SYSTEM RELIABILITY WITH CORRELATED VARIABLES X1 X2 8 00 5 00 2 00 1 00 NO NO Number of correlations input S by user tj korisnik unosi broj 9 00 korelacija i daje njihove 0 00 vrijednosti CORRELATION COEFFICIENTS 1 1 2 0 500000 s ENDDATA v reas rd d ENDJOB Correlation coefficient here X1 for variables 1 and X2 da li se ra una ili se pretpostavlja Second vafter VARIABLES keyword here X2 Figure designation explanation for limit state functions and correlation coefficients Input file extl s T HEADING ITIVITY ANALYSIS T ST EXAMPLE VARIABLES PARAMETERS 9 MODES OF FAILURE X1 X2 X1 X2 S C LIMIT STATE FUNCTION DERIVATIVES DCDX 1 1 1 gt gt pcpx 1 et1 DDDX 2 1 1 pepx 2 pq DCDX 1 2 1 gt pcpx e 2 DDDX 2 2 1 DDDX 2 2 DDDX 3 2 1 DCDX 3 D 2 Figure limit state derivatives explanation iw ATA EXAMPLE 2 CALREL USER MANUAL COMPONENT RELIABILITY WITH INDEPENDENT RANDOM VARIABLES X1 X2 8 0 1 0 3 lt column 0 O 10 characters2. Manual Example 1 EX exc2 s CALREL Manual Example 2 EX exc4 s CALREL Manual Example 4 EX exc7 s CALREL Manual Example 7 EX exc8 s CALREL Manual Example 8 EX File extensions f fortran code 0 object module tun executable files d data Legend PP subprogram subroutine PPi subprograms subroutines BIBL library of subprograms DOC document DAT data INC include procedure SH shell procedure EX examples PRT print files d data Input file description Annotation font styles bold italic in the examples here are only for the clarification purposes The actual input file has no styles at all plain text General remarks Input files are plain text files with an extension s e g ext2 s which have to be edited or written from scratch in editor that is capable of saving files in UNIX format It is recommended to use some programming editor which recognizes FORTRAN code GWDeditor Crimson Editor in Windows but it is not necessary Although input files are plain text files it is important to follow some rules when writing them because each input file e g exf2 s actually consists of two parts FORTRAN code and data The code part begins with a keyword HEADING and the data part begins with a keyword DATA In the compiling process the input file exf2 s will be separated into two files according to those keywords i e compiling p
3. NO NO CORRELATION COEFFICIENTS 1 Lp 23033 ENDDATA ENDJOB FORTRAN code data Input file ext2 s HEADING CALREL EXAMPLE 2 VARIABLES X1 X2 MODES OF FAILURE C C 1 X1 D 1 X2 C LIMIT STATE FUNCTION DERIVATIVES DCDX 1 1 1 DDDX 2 1 1 DATA EXAMPLE 2 CALREL USER MANUAL COMPONENT RELIABILITY WITH INDEPENDENT RANDOM VARIABLES X1 X2 10 0 8 0 1 0 0 8 NO NO CORRELATION COEFFICIENTS 1 12703 ENDDATA ENDJOB Figure input file parts Input file ext2 s Every input file begins with keyword HEADING HEADING CALREL EXAMPLE 2 VARIABLES X1 X2 MODES OF FAILURE C C 1 X1 D 1 X2 C LIMIT STATE FUNCTION DERIVATIVES DCDX 1 1 1 DDDX 2 1 1 Keywords ext2 f T C DATA EXAMPLE 2 CALREL USER MANUAL COMPONENT RELIABILITY WITH INDEPENDENT RANDOM VARIABLES X1 X2 10 0 8 0 1 0 0 8 NO NO CORRELATION COEFFICIENTS 1 172 023 NDDATA ENDJOB Keywords ext2 d Every file ends with keyword ENDJOB Figure keywords List of keywords objasniti EADING D D DDATA DJOB ARIABLES D A lt HHOE 2 2 ES OF FAILURI DS AMETERS E ELATION COEFFICIENTS ti Z UAUDA lw T Keywords cannot be used as variable names Input file ext2 s File heading
4. filename outm PRT se c shell script for preparation and running simulation tests Monte Carlo simulation input file filename s SH calling sh ms c filename mandatory data fort 26 fort 37 output file filename x st c shell script for analyzing simulation tests results Monte Carlo simulation input file filename s SH calling sh ms c filename mandatory data fort 26 fort 37 output file filename oute PRT Auxiliary Data Program s Data and Parameters fort 25 safety indices and coordinates of the indeksi sigurnosti i koordinate tocke najvece izglednosti d fort 26 parameters for running the simulation procedure d fort 30 descriptive sampling data FORTRAN output fort 31 parameters for running AFOSM program d fort 32 data for sensitivity analysis delta ro d fort 37 parameters for running simulation experiments d Examples input files extl s simple reliability analysis example EX ext2 s simple example component reliability with independent random variables EX ex1 s reliability analysis of tanker midship section global beam EX ex2 s reliability analysis of a hatch cover EX ex4 s reliability analysis of a plane frame structure Madsen EX ex4m s reliability analysis of a plane frame structure Melchers EX ex5 s reliability analysis of a cylindrical beam under axial loading EX ex6 s reliability analysis of a console beam EX excl s CALREL
5. to be edited and saved in editor that is capable of saving files in UNIX format e g GWDeditor Crimson Editor Windows or vi editor Linux UNIX Initially editors in Windows save files in MSDOS based format so be sure to check a proper option s in editor s menu s for saving files in UNIX format Otherwise the input files will not be compiled To start a reliability calculation just type sh re c filename where filename is a name of an input file made by user this file will be explained in details later in the text Input files must have an extension s filename s but when calling them with sh re c command the extension must be omitted After calculation is finished program automatically opens output file that contains calculation results filename outr It is also a plain text file At this moment it is opened inside the vi editor in UNIX which is really user unfriendly To get out of this type g you must type a colon tool Napomena izbaciti iz skripti opciju da se rezultati automatski otvaraju u vi Copying files to your PC Use some FTP program WinFTP Total Commander to copy files from UNIX system to your PC Every file than can be edited in Windows environment using notepad exe or any other text editor Also use the FTP program to copy input files filename s from your PC to UNIX system Keep in mind to copy input file filename s to the rex directory on UNIX system otherwise you will not get pro
6. HEADING CALREL EXAMPLE D Variable names separeted by blanks Rees Limit state function g C D if necessary COMPONENT RELIABILITY WITH INDEPENDENT RANDOM VARIABLES ___ Mean values Coefficient of variation COV a 2 VARIABLES X1 X2 e Z MODES OF FAILURE 2 2 c EB Ew 2 O se OU C LIMIT STATE FUNCTION DERIVATIVES DCDX 1 1 1 DDDX 2 1 1 Cc DATA EXAMPLE 2 CALREL USER MANUAL X1 x2 Distribution 1 0 0 8 designation NO NO NO normal distr CORRELATION COEFFICIENTS 1 1 2 0 3 ENDDATA ENDJOB Variable names Two rows field if necessary Figure input file dissection Input file extl s HEADING EXT1 SENSITIVITY ANALYSIS TEST EXAMPLE VARIABLES X1 X2 5 PA ETERS S Two Limit state functions MODES OF FAILURE gl C 1 D 1 g2 C 2 D 2 Elements of limit state functions must have names C number and D number as C 1 X1 because FORTRAN code D 1 Xx2 views this part of input file as C 2 X1 and fields arrays D 2 X2 S D deisgnates Demand Load C designates Capability Resistance C LIMIT STATE FUNCTION DERIVATIVES DCDX 1 1 1 DDDX 2 1 DCDX DDDX 1 2 25 2 3 2 t 1
7. RELI Manual FORM SORM AFORM procedures Annotations for reading the text An italic text designates what to type in command line Bold text indicates the names of programs Instructions for a remote connection 1 Windows gt start putty putty is a small freeware program for remote connection 2 Enter host name user and password Host name titan fsb hr IP address 761 53 116 9 User login on request bblag fesb hr Password on request bblag fesb hr 3 Now you are in the UNIX environment with all the commands available at the prompt To list all directories and files in the present directory type s various switches are available Js ls a etc see UNIX or Linux help 4 To change a working directory just type cd dirname to get out to previous directory type cd 5 To change to reliability directory cd rex rex is a directory with reliability programs Running programs The full path of the directory with reliability software is usrl kalman rex Also this directory contains various examples of reliability analysis FORM SORM Monte Carlo simulation Files with extensions c are UNIX shell scripts used to start various types of calculations For example re c is a shell script to start reliability calculation FORM and ms c is a shell script to start Monte Carlo simulation etc IMPORTANT Input files have an extension s They are a plain text files that but have
8. characters characters field field field maximum 80 characters Figure watch out N N lt column0 lt 1 characters field Figure All number must be entered within 10 characters field You can always enter data in several rows DATA SIMPLE TEST TWO FAILURE MODES Buckling and plastic yield UNITS kN cm 1 row E 2 10E 04 2 row 2 10E 03 NO 3 row ENDDATA ENDJOB Figure data input SF 2 35E 01 2 35E 00 NO Distribution designations NO normal LN log normal DT GU N UN uniform EX WB Weibull L2
9. per output file filename outr Unfortunately if you copy input file to the wrong directory you will not see any massage about that The reliability calculation will be performed and you will probably get an empty outr file The full path of the reliability directory is usr1 kalman rex Napomena iha ka e da koji put treba utipkati cijeli path Action in brief Prepare input file filename s in editor for example Crimson Editor in Windows Copy input file filename s with FTP program to usrl kalman rex on titan fsb hr IP address 161 53 116 9 Start putty gt connect to titan fsb hr gt enter username kziha gt enter password kziha48 gt change to reliability directory cd rex gt run program sh re c filename Exit vi editor q gt copy output file filename outr with FTP program to your PC gt edit filename outr notepad will suffice to view the results Shell scripts programs re c shell script for running level FORM AFOSM input file filename s SH calling sh re c filename mandatory data fort 31 output file filename outr rs c shell script for running II level FORM FOSM input file filename s SH calling sh rs c filename mandatory data fort 31 output file filename outs ms c shell script for calculating reliability with Monte Carlo simulation input file filename s SH calling sh ms c filename mandatory data fort 26 fort 37 fort 30 for descriptive sampling output file
10. rocess will generate files exf2 f FORTRAN code file and ext2 d data file User does not need to take care about separation the process is completely automatic This separation into two files is important from the user s point of a view only regarding positioning text and data in the input file Since all the reliability programs that will use the input file were written in FORTRAN user should take care about aligning text and data at appropriate distance from the left margin of the document according to FORTRAN rules for entering data in columns For example in DATA part of the input file exf2 s see below there is a limit of 10 characters a field for each variable starting with column 0 left margin Thus if user enters even a single character outside that field it will produce false results or even will not start the compiling process at all POMPES if an outcome is unexpected the most probable reason for that is a WRONG ALIGNING of the characters text in the input file The recommended way to make a new input file is to edit and overwrite some existing input file Example of input file ext2 s HEADING CALREL EXAMPLE 2 VARIABLES X1 X2 MODES OF FAILURE C 1 X1 D 1 Xx2 C LIMIT STATE FUNCTION DERIVATIV GI tn DCDX 1 1 1 DDDX 2 1 1 C DATA EXAMPLE 2 CALREL USER MANUAL COMPONENT RELIABILITY WITH INDEPENDENT RANDOM VARIABLES X1 X2 10 0 8 0 1 0 0 8
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