资源描述：
《hypermesh载荷集解释-nastran》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、NastranInHyperMesh,therearetwotypesofloadcollectorsforNastran:•Specificloadcollectorswithacardimage•GenericloadcollectorswithoutacardimageGenericloadcollectorsareusedtocollectloadsandconstraintsfordisplaypurposesandtoassignanIDtotheloads.Specificloadcollectorsareusedforspecializedloadingcards,suchas
2、SPCADD,MPCADD,EIGRL,EIGB,EIGC,EIGP,EIGR,FREQ,FREQ1,LOAD,GRAV,RFORCE,andTEMPD. Specificloadcollectorshavecardimageswhichcanbeeditedtodothefollowing:•Groupotherloadcollectorstogetherforsimultaneousapplicationinasinglesubcase•Providespecialinformationforaspecificanalysistype(suchasmodalanalysis)General
3、boundaryconditions,suchasloadsandconstraints,shouldnotbecollectedintospecificloadcollectors.WhenreadinginaNastrandeck,loadsthathavethesameSIDarecollectedintothesameloadcollector. IfaloadcollectoralreadyexistsinthedatabasewiththesameSID,oneofthefollowingcanoccur:Ifoverwriteisoff(default),thenewloadco
4、llector’sIDisoffsetandallloadsinthatcollectorwillhaveanewSIDuponexport.Ifoverwriteison,thenewloadcollectorreplacestheexistingloadcollector. Theoriginalloadcollectorandtheloadsitcontainsaredeleted.SupportedCardsSolverDescriptionSupportedParametersHyperMeshNotesDAREADefinesscale(area)factorsforstatica
5、nddynamicloads. SupportedasconstraintsDELAYDefinesthetimedelaytermintheequationsofthedynamicloadingfunction SupportedasconstraintsDLOADDefinesadynamicloadingconditionforfrequencyresponseortransientresponseproblemsasalinearcombinationofloadsetsdefinedviaRLOAD1orRLOAD2entriesforfrequencyresponseorTLOA
6、D1orTLOAD2entriesfortransient responseDPHASEDefinesthephaseleadtermintheequationofthedynamicloadingfunction SupportedasconstraintsEIGBDefinesdataneededtoperformbucklinganalysis EIGCDefinesdataneededtoperformcomplexeigenvalueanalysis EIGPDefinespolesthatareusedincomplexeigenvalueextractionbytheDet
7、erminantmethod EIGRDefinesdataneededtoperformrealeigenvalueanalysis EIGRLDefinesdataneededtoperformrealeigenvalue(vibrationorbuckling)analysiswiththeLanczosmethod FREQDefinesasetoffrequenciestobeus
