The following is a list of errors corrected between the Nastran 2001R2 release and the Nastran 2001 R3 release. That is, the errors corrected in Nastran 2001.0.5, 2001.0.6, and 2001.0.7 1-3209214 2001.0.6 Dynamics - MEFFMASS - Missing Output It has been observed on some problems that the output for the TOTAL EFFECTIVE MASS FRACTION SUMMARY is missing in some of the directions. Avoidance: Divide the appropriate diagonal term of the EFFECTIVE MASS MATRIX by the corresponding RIGID BODY MASS diagonal term. 1-3827201 2001.0.6 DBC - SWM 6065, DBCMSG Error Message 14 In v70.7, if the geometry datablocks, load datablocks, and the output datablocks are requested on the same DBC call, the job may fail with the following error messages: *** SYSTEM WARNING MESSAGE 6065 (DBC) *** DBCMSG ERROR MESSAGE 14 FROM SUBROUTINE GRIDBK Avoidance: A DMAP avoidance is available that beaks the DBC into two separate calls, one for the geometry and loads, and one for the output datablocks. 1-4902401 2001.0.7 Case Control - OFREQ, SPCD - SFM 5423 (DMPYAD) If the OFREQ Case Control command specifies different sets in different subcases that reference SPCD type loads, then an incompatible matrix multiple may result. *** SYSTEM FATAL MESSAGE 5423 (DMPYAD) ATTEMPT TO MULTIPLY INCOMPATIBLE MATRICES COLS ROWS FORM TRAILER FOR RPH IS 101 23 504 TRAILER FOR PPF IS 102 868 504 TRAILER FOR PYHF IS 103 651 23 Avoidance: Follow the recommendation desribed in Remark 7 under the OFREQ Case Control Command desription in the Quick Reference Guide. 1-5228601 2001.0.5 Superelements - PARAM,POST,-1, EXTSEOUT - Infinite CPU Loop An external superelement creation run using the EXTSEOUT Case Control command followed by an assembly run using PARAM,POST,-1 may lead to an infinite looping in the OUT2GEOM module (and possible use of large amounts of disk space), necessitating killing of the job. 1-5284409 2001.0.5 Optimization - DSAD, DRESP2 - Signal 11 If a DRESP2 references another DRESP2, and the referenced DRESP2 is actually an implied DRESP2 (e.g., DRESP1 using the RSS option), then depending on the machine, the job may fail with the following the message in the f06 file MAIN: "Access violation" (C0000005) exception encountered. MAIN: For reference, A(MAINAL) = 401380, A(/SYSTEM/) = 193e800 MAIN: A(/XNSTRN/) = 3370020 or it may fail without any message in the f06. The following message may appear in the log file in this case. *** Received signal 11 SIGSEGV time: command terminated abnormally. Avoidance: There are 2 possible avoidances: 1. Add a dummy DRESP1 to the calling DRESP2 or 2. Define the referenced DRESP2 explicitly. 1-5284424 2002 Optimization/Design Sensitivity - PARAM,DESPCH1,-4 - Missing DRESP1 entries in punch output The punch file does not contain the DRESP1 entries when using param,despch1,-4 Avoidance: This is a documentation error. The design intent is that only mode tracking related (RTYPE=FREQ and/or EIGN) are to be printed when despch1 = + or -4 1-5396501 2001.0.5 Optimization/Design Sensitivity - DRESP2 - UFM 7137 (DOPR3C) When an optimization task defines a DRESP2 entry that references an undefined DESVAR entry, the job fails with the message below that does not cleary identify the problem DRESP2 entry. *** USER FATAL MESSAGE 7137 (DOPR3C) ON ******** entry ID = 1, DVID = IS NOT DEFINED BY A DESVAR entry. *** SYSTEM FATAL MESSAGE 3007 (DOPR3) ILLEGAL INPUT TO SUBROUTINE DPR3C2 0FATAL ERROR Avoidance: Reference only defined DESVAR entries. 1-5525601 2001.0.7 Mode Tracking - Poor Message The message below which is output when mode tracking fails is of limited usefullness and needs to be enhanced by output the filtered and unfiltered "truth matrix". TWO OR MORE MODES ARE NEARLY IDENTICAL, WHICH MAKES TRACKING THE MODES NOT POSSIBLE. USER ACTION: RERUN USING A SMALLER VALUE ON ONE OR MORE OF THE FOLLOWING: 1) DELXV PARAMETER OF THE DESVAR BULK DATA ENTRY 2) DELP PARAMETER OF THE DOPTPRM BULK DATA ENTRY 3) DELX PARAMETER OF THE DOPTPRM BULK DATA ENTRY ^^^ USER INFORMATION MESSAGE 9051 (FEA) 1-5569401 2001.0.7 Elements - CWELD - Wrong Answers Incorrect CWELD element forces are output if any of the attached grids (the CWELD grids or the connecting shell grids) are in a global coordinate system. 1-5608218 Miscellaneous - SYSTEM(69)=64 Does Not Work as Documented. Setting SYSTEM(69)=64 should cause MSC.Nastran to exit in the preface of decomp but it doesn't. 1-5735601 2001.0.7 Optimization/Design Sensitivity - PCOMP - Insufficient memory in routine dsab1q When an optimization task designs the property (thickness or ply angle) of a PCOMP entry or the material properties (E, Rho) referenced by the PCOMP entry, then the job may fail with insufficient memory in routine dsab1q. However, the real problem is caused by an incorrect calculation of the memory requirement. Avoidance: Specify as large an amount of memory as possible for the job using the keyword MEM=aaa on the nastran command line. This may not work if the number of designed PCOMP properties is very large. *** SYSTEM FATAL MESSAGE 3008 (UTMCOR) MODULE = DSABO INSUFFICIENT CORE AVAILABLE FOR SUBROUTINE DSAB1Q USER ACTION: INCREASE OPEN CORE BY AT LEAST 18494 WORDS PROGRAMMER INFORMATION: LOCATION KEY = move PCMP 1-5824401 2001.0.7 Aeroelastic Analysis - TRIM - Nonlinear Controller with Redundant Control may lead to SFM 3007 (ASG) If a nonlinear controller exists that is not labeled as one of the standard rigid body controllers, and the users attempts to trim with redundant controls, then the following error message may appear: *** SYSTEM FATAL MESSAGE 3007 (ASG) ILLEGAL INPUT TO SUBROUTINE ASGNMD 0FATAL ERROR 1-5828001 2001.0.6 DBC - UFM 1250 issued in DBC module Large nonlinear jobs may fail in MSC.Nastran 2001.0.4 in the DBC module with the message: *** USER FATAL MESSAGE 1250 (BLKRD) STATUS = 6007, FILX = 40, LOGNAME = DBC , NSBUF3 = 1024 FILE = ./bi-metallic-plate.xdb BLKNBR = 78533 ERROR MESSAGE IS -- Read block number beyond End-of-file. 0FATAL ERROR at SEDRCVR 596 DBC BEGN Avoidance: Reducing the amount of data recovery or increasing the memory may avoid the error. 1-5930003 2001.0.7 Miscellaneous - ISHELL - Very large timeout value for ISHELL causes error on Solaris If a user specifies a very large timeout value for ISHELL (greater than 100,000,000) using system cell 275, the ISHELL run fails on Solaris with an "Invalid Argument" system error code. Solaris allows a maximum timeout value of 100,000,000 seconds (about 3.1 years) and fails the request if this value is exceeded. Other UNIX systems quietly reset the timeout to the maximum supported and continue. The X-Open specified max is 31 days. ISHELL will be modified to quietly reset user-specified timeout values to 31 days. If this is not long enough, the "infinite" option can be used. 1-6151702 2001.0.7 Optimization/Design Sensitivity - PWELD, PBUSH1D - UFM 5074 A message similar to: USER FATAL MESSAGE 5074 THE PROPERTY NAME PWELD REFERENCED ON DVPREL1 ENTRY 1 CAN NOT BE DESIGNED.(PBUSHID). will be produced when a PWELD or PBUSH1D is being designed and FID is used on the fifth field of the DVPREL1 or DVPREL2 entry. Avoidance: Input the PNAME in the fifth field. For example, for a PWELD diameter, use D in the fifth field rather than 4. 1-6287901 2001.0.7 Aeroelastic Analysis - Thin plate spline fails with memory error The thin plate spline will fail if more that one spline is used because the memory allocated to a previous spline is not freed. 1-6419327 2001.0.7 Restarts - DBALLs greater than 4 GB will not Restart Restart jobs that attach a dball greater than 4GB will not restart on linux systems. USER FATAL MESSAGE 1127 wil be encountered and the f04 file will indicate the database is offline. 1-5963501 2001.0.7 Aeroelastic Analysis - Thin Plate Splines may Fail Thin plate splines may fail for small models.