patran错误代码.docx

1、patran错误代码ERROR LIST LATEST UPDATE: 20-FEB-2001 CURRENT ERROR LIST-This section includes a description of all known errors and generallimitations in all versions of MSC.Nastran. The field next to the error number indicates the version that the error is corrected. GL in this field stands for a Genera

2、l Limitation which indicates a fix is not planned. Continuous updates to the error list are available to MSC.Nastran clients on the MSC web page at . The site may be located by clicking on Services and Support.Major CapabilitiesA list of major capabilities is provided to assist the analyst is choosi

3、ng key-words to search for to locate error that may impact their current project.Error DescriptionEach error has a heading with as many as three entries. The firstentry identifies the major capability affected and is also listed inthe major capabilities index. The second entry identifies either then

4、ame of the module in which an abnormal exit occurs or the card typeaffected if computed results are not satisfactory. (For abnormalexits, the last module name that appears in the Performance SummaryTable is usually the module where the exit occurs.) The third entrygives the symptoms of the error, su

5、ch as, the MSC/NASTRAN system oruser message number printed just prior to termination or a descriptionof a machine-dependent error. Other symptoms might be missingoutput or wrong answers. Error reports are updated when more facts orbetter avoidance techniques become known.NOTE:Beginning with Version

6、 68, MSC/NASTRAN has adopted a Version numberingsystem of the form XX.YY.ZZ, where XX is the major release, YYindicates a minor release with few enhancements and ZZ indicates errorcorrections. Note that modifications to the code that are requiredso that a specific machine runs the same as previous r

7、eleases on othermachines are considered error corrections in this numbering scheme.Thus, there may not be any references in the error list to a specificrelease number. Keyword IndexThe Keyword Index has been removed from the error listSince the error list is maintained internally at MSC ina relation

8、al database and is provided to the user in variouselectronic formats search utilities have replaced the need for akeyword index and the maintenance of the keyword index has beendiscontinued.A list of the major categories follows:Accounting Acoustic Analysis Aeroelastic Analysis Authorization Axisymm

9、etric Fluid Elements Beam LibraryBuckling Analysis Buckling & Differential StiffnessCase Control Complex Eigenvalues, Component Mode SynthesisComposites Cyclic SymmetryDBC/TRANS/ACCESSDMAPDatabaseDesign SensitivityDocumentationDynamic ReductionDynamic Response AnalysisEigenvalue AnalysisElement Stra

10、in EnergyElementsEstimate ExecutiveExecutive LimitsExternal SuperelementsFile Management SectionFrequency ResponseFrequency Response and Random AnalysisGap ConstraintsGeometric NonlinearityGrid Point ForceGrid Point StressGrid Point Stress DiscontinuitiesHeat Transfer AnalysisHydroelastic AnalysisHy

11、perelastic Nonlinear AnalysisInertia ReliefInstallationInterface ElementsIterative SolverLimitation on Problem SizeLoadsMSC/ACCESSMSGMESH, MSGSTRESS, MSGVIEWMaterial Nonlinear AnalysisMaterialsMatrix MethodsMethod SelectionMiscellaneousModal AugmentationNonlinear AnalysisNonlinear Eigenvalue Analysi

12、sNonlinear Slide-Line AnalysisNonlinear Static AnalysisNonlinear Superelement AnalysisNonlinear Transient AnalysisNonlinear Transient Heat TransferOld Design SensitivityOnline Documentation Optimization/Design SensitivityP-ElementsParallel PerformancePlottingPostprocessingResponse SpectraRestarts Ri

13、gid Elements SSSALTERSSecuritySequencerSingle Point ConstraintsStatic Aeroelastic Analysis Static AnalysisSubmittal Superelements Thermal Stress Analysis Timing Estimate Transient Nonlinear Analysis Transient Response Analysis UtilitiesVirtual Mass 399; 70.5; Eigenvalue Analysis - CEAD, QRG - Unexpe

14、cted Normalization Complex eigenvalue analysis with the inverse power method of eigenvalue extraction will always normalize to MAX. POINT normalization requests are ignored. The Version 70.5 Quick Reference Guide has been updated to indicate that point normalization is only available for the det met

15、hod. 745; GL; Plotting - XYOUTPUT - UFM 688, UFM 687 In requesting XYOUTPUT, if the last frame request on an XYPLOT command is for an upper frame only, e.g., .(T1,), then the USER FATAL MESSAGE 688 or 687 will terminate the run. An avoidance is to explicitly insert 1000 for the component of the lowe

16、r frame plot, e.g., .(T1,1000). 785; 69; MSGMESH, MSGSTRESS, MSGVIEW - MSGMESH, DIAG 29 - Infinite CPU Loop If MSGMESH is used with the link specification update feature, an infinite loop occurs. An infinite loop no longer occurs; UFM 53 will be issued indicating an incorrect format for the mesh ent

17、ries. 796; GL; Hydroelastic Analysis - AXIF - UFM 2047, UFM 2053 If the harmonics flag is set to NONE in Field 7 on the AXIF entry, then the Case Control command AXIS=FLUID may not be used. 827; GL; Response Spectra - DLOAD, RLOADi, TLOAD - UFM 2135 Scaled Response Spectra uses DLOAD Bulk Data entri

18、es. They point to DTI entries, and can violate the DLOAD rule that says the Li entries must be unique. However, the DLOAD entry is not checked if no RLOADi or TLOADi entries appear in the Bulk Data Section. It is therefore illegal to have RLOADi or TLOADi entries present when using scaled response s

19、pectra. If they are not present, the solution sequence will function properly. 868; 70.7; Miscellaneous - PUNCH - Incorrect Format STRESS(PUNCH) will not properly output the HEXA, PENTA, BEND, BEAM, TRIA6, or QUAD8 elements. Element margins of safety (ROD, CONROD, TUBE, and BAR elements) will produc

20、e poor punched formats if stress allowables are not given on the referenced MATi entries. 888; GL; Limitation on Problem Size - Rigid Elements - UFM 3008 The capacity for processing Rigid Elements in the GP4 module is limited since the entire nonzero RG matrix must be stored in memory. Splines are p

21、articularly bad. For example, let NS = the number of RSPLINEs (two dependent, five independent), R = the number of RBARs, and NG = the number of grids. Then, (350 X NS + 90 X R) (OC -7 X NG - 3 X BUFFSIZE). For example, if OC = 72000, NG = 1000 and BUFFSIZE = 4166, then the user is limited to 150 sp

22、lines. 889; GL; Elements - CELAS - Unintended Constraints Scalar elements connected to noncolinear degrees of freedom introduce constraints which will not appear in the output. 890; GL; Grid Point Force - GPFDR - UFM 3008 The open core requirement for the GPFDR module can be as large as (6 X BUFFSIZ

23、E + 14 X number of grids) if the grids use a nonrectangular displacement coordinate system. For problems in basic coordinates, the grid requirement drops to 8 X number of grids. 903; GL; Elements - CONEAX, SORT2 - Incorrectly Formatted Output Conical shell problems do not prepare SORT2 output proper

24、ly. In addition, the SORT2 requests generate unwanted and meaningless punched output. 916; GL; Plotting - XYPAPERPLOT - Missing Plot Output X-Y paper plots do not include all the features of a graphic plotter. Titles and MAX/MIN functions are about the only features supported. TICS, DIVISIONS, GRID

25、LINES, and LOG SCALES are not supported. 1022; GL; Nonlinear Analysis - OLOAD - Wrong Answers The resultants for the applied loads are incorrect if cylindrical or spherical coordinates are used. This output is informational only and the solution is not affected. 1065; GL; Superelements - SEMA - SEMA

26、 FATAL MESSAGE Superelements may be excluded from assembly in SEKR and SELR (SEEXCLUDE). However, if all upstream superelements are excluded from a given superelement, then the program will fail. An avoidance is to put PARAM,NOUP,-1 in the first Case Control subcase for the failing superelement. 108

27、6; GL; Plotting - CONTOUR - UFM 4212 Insufficient open core for contour plotting may result in a misleading message. The avoidance is to increase open core. 1103; GL; Dynamic Response - TRD, TRD1, FRRD, FRR - UFM 3005 If the MGIV method of real eigenvalue extraction computes modes for massless DOF w

28、ith uncoupled stiffness terms, the eigenvalue is large (1.E+35) as it should be, but the generalized stiffness is 0.0 (it should also be 1.E+35). Null eigenvectors may be produced. An avoidance is to use PARAM,HFREQ or PARAM,LMODES to discard these bad modes in dynamics. 1125; GL; Sequencer - RESTAR

29、T, PARAM,NEWSE - Wrong Answers If the sequence processor is used for any part of an analysis, it should be executed on all restarts which input data. The value of PARAM,NEWSEQ should remain unchanged in every run. 1183; GL; Eigenvalue Analysis - READ - Negative Term on Factor Diagonal If the user re

30、quests the eigenvector for an infinite frequency mode, the program may fail. An avoidance is to reduce the ND value on the EIGR bulk data entry to be less than N. The Nth eigenvector is numerical noise. 1308; 68; Aeroelastic Analysis - FA1 - Poor Answers The eigenvalue extractions by the PK and KE m

31、ethods are performed in lower precision than most other calculations (single precision). Excessive truncation error may occur in some problems on short-word machines. The only machines that will not experience this problem are the CRAY, CDC and NEC computers. Contact MSC for avoidance procedure. 1357; 70.5; Aeroelastic Analysis - GI - Poor Accuracy The linear splines used to connect struc