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1、Chapter11MSC.Nastran/MSC.AdamsInterfaceTableofContentsPurposeofMSC.Nastran/AdamsFlexInterfaceFeaturesSupportedUser’sInterfaceOutputforMSC.AdamsMSC.AdamsUnitsMSC.Nastran/AdamsInterfaceExamplesExample1—ComponentasasuperelementExample2—ComponentasresidualstructureonlyExample
2、3—ComponentRestartingfromSOL106toSOL103GuidelinesandLimitationsPurposeofMSC.Nastran/AdamsFlexInterfaceIncorporatesreducedflexiblebodycomponentdynamicsfromMSC.NastranintoMSC.AdamsFlexForperformingsystemflexiblebodyanalysis—includinglargerigidbodymotionsTypicalApplications:
3、Elasto-kinematicanalysisofvehicularsuspensionsEnginecrankshaft-drivetraininteractionAircraftlandingconditionsSatellitepaneldeploymentPurposeofMSC.Nastran/AdamsFlexInterface(cont.)PriortoMSC.Nastran2004,thistypeofcouplingisatwostepsprocessGeneratesanoutput2filefromMSC.Nast
4、ranusingandmapalterConvertsthisoutput2fileintoanMSC.AdamsModalNeutralfile(MNFfile)usingOUT2MNFThisfileisthenreadablebyMSC.AdamsFlexIn2004,youcangeneratetheMNFfiledirectlyfromMSC.NastranFeaturesSupportedThecomponentcanbeasuperelementTheexteriorpointsaretheattachmentpointsS
5、upportsbothmainbulkandpartsuperelementsThecomponentcanberesidualstructureUseASET/ASETitodefineattachmentpointsSupportstheuseofstatsubforprestiffeningwithsmalldeflectioninSOL103SupportslargedisplacementwithpreloadRunSOL106withpreloadandsavedatabaseRestartinSOL103using“para
6、m,nmloop,x”User’sInterfaceOnlytwonewcommands/entriesarerequiredCaseControlcommandtogenerateMNFfileADAMSMNFFLEXBODY=YESBulkDataEntrytospecifyunitsusedbyADAMS/FlexDTI,UNITS,1,mass_unit,force_unit,length_unit,time_unite.g.,DTI,UNITS,1,KG,N,M,SECAdditionalfeatureswillbeshowni
7、ntheexamplesectionsUser’sInterface(cont.)FullADAMSMNFCaseControlcommandMostcommonlyusedoptionsOutputforMSC.AdamsThefollowingoutputaregeneratedforMSC.Adams:ModalstiffnessModalmassModalloadDiagonalmatrixofa-setunitboundarydisplacementPhysicalmassmatrixStressshapeStrainshape
8、MSC.AdamsUnitsMSC.AdamsisnotaunitlesscodeParam,wtmass,xisusedinMSC.Nastrantoscaleweight/massunit
