ANSYS中各种错误提示解决方案

ANSYSTroubleshootingGuideANSYSRelease10.0002184August2005ANSYS,Inc.andANSYSEurope,Ltd.areULregisteredISO9001:2000Companies.ANSYSTroubleshootingGuideANSYSRelease10.0ANSYS,Inc.Southpointe275TechnologyDriveCanonsburg,PA15317ansysinfo@ansys.comhttp://www.ansys.com(T)724-746-3304(F)724-514-9494CopyrightandTrademarkInformation©2005SASIP,Inc.Allrightsreserved.Unauthorizeduse,distributionorduplicationisprohibited.ANSYS,ANSYSWorkbench,CFX,AUTODYN,andanyandallANSYS,Inc.productandservicenamesareregisteredtrademarksortrademarksofANSYS,Inc.oritssubsidiarieslocatedintheUnitedStatesorothercountries.ICEMCFDisatrademarklicensedbyANSYS,Inc.Allothertrademarksorregisteredtrademarksarethepropertyoftheirrespectiveowners.DisclaimerNoticeTHISANSYSSOFTWAREPRODUCTANDPROGRAMDOCUMENTATIONINCLUDETRADESECRETSANDARECONFIDENTIALANDPROPRIETARYPRODUCTSOFANSYS,INC.,ITSSUBSIDIARIES,ORLICENSORS.ThesoftwareproductsanddocumentationarefurnishedbyANSYS,Inc.,itssubsidiaries,oraffiliatesunderasoftwarelicenseagreementthatcontainsprovisionsconcerningnon-disclosure,copying,lengthandnatureofuse,compliancewithexportinglaws,warranties,disclaimers,limitationsofliability,andremedies,andotherprovisions.Thesoftwareproductsanddocumentationmaybeused,disclosed,transferred,orcopiedonlyinaccordancewiththetermsandconditionsofthatsoftwarelicenseagreement.ANSYS,Inc.andANSYSEurope,Ltd.areULregisteredISO9001:2000Companies.U.S.GOVERNMENTRIGHTSForU.S.Governmentusers,exceptasspecificallygrantedbytheANSYS,Inc.softwarelicenseagreement,theuse,duplication,ordisclosurebytheUnitedStatesGovernmentissubjecttorestrictionsstatedintheANSYS,Inc.softwarelicenseagreementandFAR12.212(fornon-DODlicenses).Third-PartySoftwareSeetheonlinedocumentationintheproducthelpfilesforthecompleteLegalNoticeforANSYSproprietarysoftwareandthird-partysoftware.TheANSYSthird-partysoftwareinformationisalsoavailableviadownloadfromtheCustomerPortalontheANSYSwebpage.Ifyouareunabletoaccessthethird-partylegalnotices,pleasecontactANSYS,Inc.PublishedintheU.S.A.TableofContents1.Introduction........................................................................................................................................1–12.ANSYSErrorMessages........................................................................................................................2–1ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.viChapter1:IntroductionThePurposeofThisManualTheANSYSTroubleshootingGuideisacompilationofcommonerrormessagesandresolutionrecommendations.Youcanusethisguidewhenyoureceiveanerrormessagethateitherstopsyouranalysis,ordoesnotprovidealogicalfollowuptotheeventsthatpreceededthemessage.Theexplanationsandresponsesprovidedinthisguidesupplementtheavailabledocumentationbyprovidinginformationthatisrelativetothesituationyouareinwhenyouseetheerrormessage.AlthoughonlyaportionoftheANSYSerrormessagesarecontainedinthisguide,usingtheonlinedocumentation'stextsearchcapabilitywilloftenleadyoutoamessage/resolutionsetthatmayprovidesomeinsighttothenatureofyourproblem.ThefollowingsectiondetailshowtoaccesstheresolutionsviatheANSYSonlinedocumentation.AccessingtheTroubleshootingInformationYoucanaccessthetroubleshootinginformationeitherdirectlyfromthehelpmenuorbyusingtheANSYSDocumentationsearchpage.ThefollowingsectiondetailsthelayoutoftheerrormessagesthatarecontainedintheTroubleshootingGuide.RoutinenameandnumberThisisaninternalcodedesignatorthatuniquelyidentifiesthiserrormessage.Althoughnotaccessiblefromwithinthesoftware,thisinformationcanbehelpfulifyoumustcontactANSYS.ErrormessagestringThisistheactualmessagethatappearsintheerrormessagedialogbox.Thisfieldwillprovidesearchcriteriathatyouenterintothehelpsystem'ssearchengine.Youcanuseanyportionofthestringtogenerateasearch.RecommendationsforresolutionoftheerrormessageWherepossible,thisinformationattemptstoaddresstheseriesofeventsorconditionsthatcausedtheerrormessage.ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.1–2Chapter2:ANSYSErrorMessagesErrorCode:ChapHemi.1010ViewFactorcalculationstopped.RecomputeViewFactorsforRadiationProblem.YougetthismessagewhenananalysisisstoppedusingtheSTOPbuttonontheprogressbar.Thereasonforstoppingtheanalysiswilldeterminethecorrectiveactionyouwillneedtotake.Youcanusethe"SessionEditor"toreissuethecommandthatprecededtheVIEWFACTORCALCULATION.ThiscouldbeVFCALCin/AUX12,ortheSOLVEcommandinSOLU.Closed_Cor.5010PSDfilehasbeenlost.YougetthismessagewhenANSYSisunabletofindthedatabasefilejobname.psd.Itispossiblethatthefilewasdeleted,moved,oroverwrittenwithanotherjobnamefile.IfthePSDfilecannotberecovered,theanalysismustberestarted.Closed_Ord.5010PSDfilehasbeenlost.YougetthismessagewhenANSYSisunabletofindthedatabasefilejobname.psd.Itispossiblethatthefilewasdeleted,moved,oroverwrittenwithanotherjobnamefile.IfthePSDfilecannotberecovered,theanalysismustberestarted.Closed_Ord.5050Nocorrelationbetweennodalandbaseexcitationsisallowedfortablenumbers%I:1and%I:2.Thisisadataentrymistake.Forthiscase,itisphysicallyimpossibletodefineacorrelationcoefficientbetweenthenodalandbaseexcitations.Removethecorrelationcoefficient.ConGrd.5010Conjugategradientsolverdidnotmeetspecifiedconvergencecriterionwithinspecifiednumberofsolversweeps.Modelsizemayrequiremoresweeps.Checkdebugfilefordivergence.%/%C:1.Inlargeproblems,thedefaultvalueof500sweepsissometimesnotenough.Increasingthenumberfrom500to5000willsometimeshelp.Ifthismessageoccursinthelaterstagesofasolution,restartfromasetofresultsjustbeforethemessagewasencountered,allowingmoresweeps.Insomecases,themodelmaybeillconfiguredandunsolvable.Contrl.5030Nochangefrominitialsolution-probableinputerror.Thismessageoccurswhentheinitialsolutionsatisfiesalloftheboundaryconditions;nofurtheriterationsarerequired.Thiscanhappenwhenyouforgettospecifygravityorvariabledensityforanaturalconvectionproblem.Verifytheformulationoftheanalysis,maketheproperadditionsandstarttheanalysisover.ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.GetICV.5000Thefollowingnode(s)havetheirInitialmassfractionoutofrange.(UsetheICcommand).Theinitialconditionsyouspecifiedforspeciestransportcapabilityareinerror.Thesevaluesmustbebetween0and1(inclusive).Thesumofallappliedspeciesfractionsatanodemustalsobebetween0and1.GetICV.5020Thefollowingnode(s)havetheirInitialmassfractionoutofrange.(UsetheICcommand).Theinitialconditionsyouspecifiedforspeciestransportcapabilityareinerror.Thesevaluesmustbebetween0and1(inclusive).Thesumofallappliedspeciesfractionsatanodemustalsobebetween0and1.GmRes.5030Coefficientmatrixhasazerodiagonal.Probablycausedbyconductivityorviscositygoingtozero.Couldalsobecausedbyadivergentsolution.%/%C:1%I:2.Ifthismessageisencounteredearlyinthesolution,thereisaproblemwiththewaytheanalysisissetup.Ifitisencounteredpartwaythroughthesolution,theanalysisneedstobesolvedbetter.Restartingfromthesetofresultsjustbeforethedivergenceandspecifyingtighterconvergenceforeachiteration(pressureortemperaturesubiterations)mayallowconvergence.GmRes.5040Coefficientmatrixhasanegativediagonal.Probablyindicatesdivergentsolution.%/%C:1%I:2.Ifthismessageisencounteredearlyinthesolution,thereisaproblemwiththewaytheanalysisissetup.Ifitisencounteredpartwaythroughthesolution,theanalysisneedstobesolvedbetter.Restartingfromthesetofresultsjustbeforethedivergenceandspecifyingtighterconvergenceforeachiteration(pressureortemperaturesubiterations)mayallowconvergence.GmRes.5000Generalizedminimumresidualsolverdidnotmeetspecifiedconvergencecriterionwithinspecifiednumberofsweeps.Modelsizemayrequiremoresweeps.Checkdebugfilefordivergence.%/%C:1.Inlargeproblems,thedefaultvalueof500sweepsissometimesnotenough.Increasingthenumberfrom500to5000willsometimeshelp.Ifthismessageoccursinthelaterstagesofasolution,restartfromasetofresultsjustbeforethemessagewasencountered,allowingmoresweeps.Insomecases,themodelmaybeillconfiguredandunsolvable.GmRes.5020Generalizedminimumresidualsolverdidnotmeetspecifiedconvergencecriterionwithinspecifiednumberofsweeps.Modelsizemayrequiremoresweeps.Checkdebugfilefordivergence.%/%C:1.Inlargeproblems,thedefaultvalueof500sweepsissometimesnotenough.Increasingthenumberfrom500to5000willsometimeshelp.Ifthismessageoccursinthelaterstagesofasolution,restartfromasetofresultsjustbeforethemessagewasencountered,allowingmoresweeps.Insomecases,themodelmaybeill-configuredandunsolvable.ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.2–2Chapter2:ANSYSErrorMessagesInField.5030Adegreeoffreedomthatwasfoundinthe.rflfileisnotrequiredforthisanalysis.Willnotread.rflvaluesof%/%C:1.Thisisadatastructureconstructionerrormessagethatmeansextradegreesoffreedom(thatareunused)werefoundintheresultsfile,andthattheywillbeignored.Unuseddegreesoffreedomcanbecreatedwhenyouresumeanoldversionofthedatabasebeforethespeciesareadded.JacRatioWarn.3005%C:1element%I:2hasazeroorinvertedJacobiandeterminantatoneofitscornernodes.Midsidenodes,ifany,maybepoorlypositioned.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethana90degreearc.JacRatioWarn.3010%C:1element%I:2hasaJacobianratioof%G:3,whichexceedsthewarninglimitof%G:4.Midsidenodes,ifany,maybepoorlypositioned.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethea90degreearc.JacRatioWarn.3020%C:1element%I:2hasazeroorinvertedJacobiandeterminantatoneofitscornernodes.ThismaybeOKifyouaresimulatingastresssingularityusingquarterpointelements.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).SingularelementsgeneratedusingKSCONwillalsoinitiatethismessage.Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethea90degreearc.JacRatioWarn.3030%C:1element%I:2hasaJacobianratioof%G:3,whichexceedstheerrorlimitof%G:4.ThismaybeOKifyouaresimulatingastresssingularityusingquarterpointelements.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).SingularelementsgeneratedusingKSCONwillalsoinitiatethismessage.Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethea90degreearc.2–3ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.Chapter2:ANSYSErrorMessagesJacRatioWarn.3040%C:1element%I:2hasaJacobianratioof%G:3,whichexceedstheerrorlimitof%G:4.Midsidenodes,ifany,maybepoorlypositioned.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethea90degreearc.MemoryErrorMessagesSeeANSYSMemoryErrorMessagesintheANSYSBasicAnalysisGuideforacompletelistofmemoryerrormessages.MidParOffsWarn.3040%C:1element%I:2hasamidsidenodewhichisoff-centerbyadistanceratioof%G:3.ThismaybeOKifyouaresimulatingastresssingularityusingquarterpointelements.Thismessageindicatesageometryorelementshapeproblem.Anunacceptablyshapedelementisbeingstored(oronethatisalreadystoredisbeingtested).Iftheelementwasproducedautomatically(viathemesherorVMESH)generatingafinermeshmayeliminatetheproblem,otherwise,thegeometrymayrequiremodification,simplificationorrepair.Avoidcurved-sidedelementsthatspanmorethea90degreearc.NNewVisLaw.5020Non-Newtonianviscositycomputedtobenon-positive.Thismessageprobablymeansthatthecoefficientsspecifiedforthenon-Newtonianviscosityvariationsarewrong,sincethevaluehascomeouttobezeroorless,whichismeaningless.Ifithappensrightaway,itin-dicatesaninputerror.Ifithappensfurtheronintothesolution,itprobablyindicatesdivergence.NNewVisLaw.5040Non-Newtonianviscositycomputedtobeunreasonable,pleasecheckcoefficients.Thismessageprobablymeansthatthecoefficientsspecifiedforthenon-Newtonianviscosityvariationsarewrong,sincethevaluehascomeouttobezeroorless,whichismeaningless.Ifithappensrightaway,itin-dicatesaninputerror.Ifithappensfurtheronintothesolution,itprobablyindicatesdivergence.PropCond.5000Negativeorzerotemperaturedetected.Thismaybecausedbyadivergingsolutionorbyanincorrecttemperatureorpropertyvalue.Atemperatureoffsetmayalsoberequired.(TOFFST)%/%C:1%I:2.Yourtemperaturehasdippedbelowzero.Ifthismessageisencounteredearlyonintheanalysis,itisprobablyduetosomesortofbadinput(lackofaTOFFST,toolowareferencetemperature).Lateronintheanalysis,itcouldindicatedivergence.Thereareanumberofwaystoavoidthiscondition:1)turnoncappingfortemperatureorpressureuntilthevaluesstabilize,2)useatransientalgorithm,3)increaseyourreferencetemperature/pressure,4)refineyourmesharoundtheproblemarea.ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.2–4Chapter2:ANSYSErrorMessagesPropCond.5010Negativeconductivitycalculated.Solutionterminated.Thiscouldbecausedbyapropertyerrorordivergentsolution.%/%C:1%I:2.Ifyourconductivityistemperaturedependentandthetemperaturedipsbelowzero,aninvalidconductivityvaluewillbegenerated.Ifthismessageisencounteredearlyonintheanalysis,itisprobablyduetosomesortofbadinput(lackofaTOFFST,toolowareferencetemperature).Lateronintheanalysis,itcouldindicatedivergence.Thereareanumberofwaystoavoidthiscondition:1)turnoncappingfortemperatureorpressureuntilthevaluesstabilize,2)useatransientalgorithm,3)increaseyourreferencetemperature/pressure,4)refineyourmesharoundtheproblemarea.PropDens.5030Negativedensitycalculated.Solutionterminated.Thiscouldbecausedbyapropertyerrororadivergentsolution.%/%C:1%I:2.Whenthismessageoccursearlyinthesolution,itprobablymeansthatthepropertieswerespecifiedincor-rectly.Whenitoccursafterafewiterations,itprobablymeansdivergence(whichcouldalsobeduetoabadspecification).YoucanswitchvariabledensityOFFtoallowanyswingsinthesolutiontostabilize,andthenrestarttheanalysis.PropSpHt.5000Negativeorzerotemperaturedetected.Thismaybecausedbyadivergingsolutionorbyanincorrecttemperatureorpropertyvalue.Atemperatureoffsetmayalsoberequired.(TOFFST)%/%C:1%I:2.Yourtemperaturehasdippedbelowzero.Ifthismessageisencounteredearlyonintheanalysis,itisprobablyduetosomesortofbadinput(lackofaTOFFST,toolowareferencetemperature).Lateronintheanalysis,itcouldindicatedivergence.Thereareanumberofwaystoavoidthiscondition:1)turnoncappingfortemperatureorpressureuntilthevaluesstabilize,2)useatransientalgorithm,3)increaseyourreferencetemperature/pressure,4)refineyourmesharoundtheproblemarea.PropSpHt.5010Negativeorzeropressuredetectedduringpropertyupdate.Thismaybecausedbyadivergentsolutionorbyanincorrectpropertyvalue.Thereferencepressuremayneedtobeincreased.%/%C:1%I:2.Yourpressurehasdippedbelowzero.Thisisproblematicsincelateronintheanalysis,densitywillbeupdatedasanegativenumberforcompressibleflows.Ifthismessageisencounteredearlyonintheanalysis,itisprobablyduetosomesortofbadinput(lackofaTOFFST,toolowareferencetemperature).Lateronintheanalysis,itcouldindicatedivergence.Thereareanumberofwaystoavoidthiscondition:1)turnoncappingfortemperatureorpressureuntilthevaluesstabilize,2)useatransientalgorithm,3)increaseyourreferencetemperature/pressure,4)refineyourmesharoundtheproblemarea.2–5ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.Chapter2:ANSYSErrorMessagesPropSpHt.5020NegativeSpecificHeatcalculated.Solutionterminated.Thiscouldbecausedbyapropertyerrorordiver-gentsolution.%/%C:1%I:2.Thismessagecanoccurwhenyouhavetemperaturedependentspecificheats--anegativespecificheatcanoccurwhenthetemperaturedipsbelowzeroorgoesoutofrangeofthespecifiedcurve/tableofspecificheatvs.temp.Ifthismessageisencounteredearlyonintheanalysis,itisprobablyduetosomesortofbadinput(lackofaTOFFST,toolowareferencetemperature).Lateronintheanalysis,itcouldindicatedivergence.Thereareanumberofwaystoavoidthiscondition:1)turnoncappingfortemperatureorpressureuntilthevaluesstabilize,2)useatransientalgorithm,3)increaseyourreferencetemperature/pressure,4)refineyourmesharoundtheproblemarea.PropVisc.5000Negativeorzerotemperaturedetected.Thismaybecausedbyadivergingsolutionorbyanincorrecttemperatureorpropertyvalue.Atemperatureoffsetmayalsoberequired.(TOFFST).Ifthismessageoccursearlyinthesolution,itprobablyindicatesabadinput,suchasforgettingtospecifyTOFFST,or,inacompressiblecase,amistakeintheinputcalculationsthatsetsupanimpossibleflow.Ifitoccurslateroninthesolution,itprobablyindicatesdivergence.PropVisc.5010Negativeviscositycalculated.Solutionterminated.Thiscouldbecausedbyapropertyerrorordivergentsolution.%/%C:1%I:2.Ifthismessageoccursearlyoninthesolution,ifprobablyindicatesaninputproblem.Ifitoccurslateroninthesolution,theanalysisisprobablydivergent.PrpCals.5010Negativeorzeromolecularweightfoundforspeciescalculations.Solutionterminated.%/%C:1%I:2.Thismessageisduetoaninputerror,sincethemolecularweightisaninputquantity.Pleasecheckyourinputdataandtrytheanalysisagain.accat3.5000DatamismatchduringACCAToperation.Somepreviousoperationstoredinconsistentareaorlinedata.Identifyingwhereorhowthisoccurredisdifficult.Often,thisconditioncanbecorrectedbyaSAVE/RESUMEcycle,orbysaving,exitingANSYSandrestarting.YoucanalsoperformaCDWRITE/CDREADcycle.UsingtheCDWRITE/CDREADorSAVE/RESUMEoperationsisoftenmoreeffectiveandlessproblematicthandeletingandredefiningtheincorrectentities.ardel2.5020AdatamismatchoccurredduringtheADELEToperation.Somepreviousoperationstoredinconsistentareaorlinedata.Identifyingwhereorhowthisoccurredisdifficult.Often,thisconditioncanbecorrectedbyaSAVE/RESUMEcycle,orbysaving,exitingANSYSandrestarting.YoucanalsoperformaCDWRITE/CDREADcycle.UsingtheCDWRITE/CDREADorSAVE/RESUMEoperationsisoftenmoreeffectiveandlessproblematicthandeletingandredefiningtheincorrectentities.ANSYSTroubleshootingGuide.ANSYSRelease10.0.002184.©SASIP,Inc.2–6Chapter2:ANSYSErrorMessagesbacsub.3000Thesparsesolversarenotavailablewith5.2CElogic.%/TheSOLUTIONisabandoned.Thismessageisproducedwhen/CONFIG,CEONFULL,1isactiveandthesolutionisattemptedwiththesparsesolver(EQSLV,SPARSE).Theconfigurationyouhavechosenforyouranalysisisnotsuitableforthissolver,thesolutionshouldbeperformedwiththeFrontalSolver.bacsub.3010ThemultiphysicsJCG/ICCGsolversarenotavailablewith5.2CElogic.%/TheSOLUTIONisabandoned.Thismessageisproducedwhen/CONFIG,CEONFULL,1isactiveandthesolutionisattemptedwiththeeithertheJCG,orICCGsolver.Theconfigurationyouhavechosenforyouranalysisisnotsuitableforthissolver,thesolutionshouldbeperformedwiththeFrontalSolver.bcssl4.3000Therearenoactivedegreesoffreedom.ThismessageindicatesthatallDegreesofFreedominthemodelareconstrained,orthatnoelementshavebeenselectedinthecurrentsetwhentheSOLVEcommandisissued.AlthoughtotalDOFconstraintcanbeacceptable,youshouldchecktheapplicationofforcesandconstraintsandtheselectionofelementsforthesolution.bcssl4.3070MemoryusedatthecurrentsubstepexceedsthatofthepreviousstepintheSparseMatrixDirectSolverlinearloop.Newfactorizationdone.ThisisaSparseDirectSolvermessageindicatingthatthenumberofnodesorelementshaschangedbetweeniterativestepsinthesolution.Themessagealertsyoutothisandadjuststhematrixasneeded.bcsswn.3030Errorinnumericfactorization.%/Thesystemmatrix,possibly,isnumericallysingular.WhenyouareintheSparseDirectSolver,thismessageindicatesthatthemodelisnotconstrained.VerifyyourspecificationsfortheDcommand.bhconv.5000CannotconvertB-Hdata.CheckthedatathatyouenteredfortheB-Hcurve.AB-HcurveisrepresentedbynonzeropairsofBandHvalues.Ifanyon