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《薄壁钣金零件铆接过程变形建模与仿真-《中国航空学报英文版》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、ChineseJournalofAeronautics24(2011)369-377ContentslistsavailableatScienceDirectChineseJournalofAeronauticsjournalhomepage:www.elsevier.com/locate/cjaRivetingProcessModelingandSimulatingforDeformationAnalysisofAircraft’sThin-walledSheet-metalPartsZHANGKaifu*,CHENGHui,LIYuanTheKeyLaboratoryofConte
2、mporaryDesignandIntegratedManufacturingTechnology,MinistryofEducation,NorthwesternPolytechnicalUniversity,Xi’an710072,ChinaReceived7July2010;revised19August2010;accepted29October2010AbstractTherivetingjointisoneoftheimportantjointmethodstopermanentlyfastentwothin-walledsheet-metalparts.Itismostb
3、a-sictoefficientlyanalyzeandestimatethedeformationoftherivetingjointfortheperformance,fatiguedurabilityanddamageoftherivetingstructureintheaircraft.Thispaperresearchestherivetingprocessmathematicsmodelingandsimulatingtomoreaccuratelyanalyzedeformationofthin-walledsheet-metalparts.First,themathem
4、aticsandmechanicsmodelsfortheelasticdeformation,plasticdeformationandspringbackoftherivetarebuiltbymechanicstheory.Second,onthebasisofABAQUSsystem,afiniteelementsystem,aninstancemadeupoftherivetandtwothin-walledsheet-metalpartsofaluminumalloyisusedtoanalyzeandsimulatethestressanddeformation.What
5、’smore,acomparisonismadebetweentheresultsobtainedbythemathematicsandmechanicsmodelsandthosebyfiniteelementmethod(FEM).Themodelsareprovedtruebythecalculatingandsimulationresultsoftheinstance.Keywords:riveting;deformation;mechanicsmodeling;finiteelementmethod;thin-walledstructure;aircraft1.Introdu
6、ction1analyze,estimateandcontrolthedeformationofrivetsandsheet-metalpartsforrivetingprocess.TherivetingjointisoneoftheimportantwaystoAkeystepforexactlyexpressingdeformationbe-keepfasteningthethin-walledsheet-metalpartsper-havioroftherivetingjointistobuildthemodelsthat[1]manently.Therearemanyadva
7、ntages,suchassimpleexplaintherivetingprocess.BedairaandEastaughjointingprocess,reliablejointingintensity,highwork-presentedanumericalprocedurefortheanalysisofingefficiency,andsoon,soitisuseddiffuselyintherivetedsplicejoints,
