预览加载中，请您耐心等待几秒...

法兰螺栓连接结构的ANSYS疲劳分析.docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

法兰螺栓连接结构的ANSYS疲劳分析 Abstract Inthispaper,theANSYSfatigueanalysismethodofflangeboltconnectionstructureisstudied.ThefiniteelementanalysissoftwareANSYSisusedtoestablishthemodelofaflangeboltconnectionstructure,andthefatiguelifeofthestructureispredictedbasedontheanalysisofthestressdistributionandfatiguestrength.Therelationshipsbetweenthestresslevelsandthefatiguelifearealsodiscussed.TheresultsshowthattheANSYSfatigueanalysismethodcanprovidevaluableinformationforthedesignandevaluationofflangeboltconnectionstructures. Keywords:ANSYS,fatigueanalysis,flangeboltconnectionstructure,stressdistribution,fatiguestrength,fatiguelife Introduction Flangeboltconnectionstructuresarewidelyusedinvariousindustrialapplications,suchaspetrochemical,powergeneration,andtransportation.Theyareessentialcomponentsintheconstructionofpressurevessels,pipelines,andmachinery.However,flangeboltconnectionsaresubjecttocyclicloadingandmayundergofatiguefailureovertime.Fatiguefailureoccurswhenamaterialissubjectedtorepeatedcyclicloadingbelowitsyieldstrength,resultingingradualdamageandeventualfracture. Toensurethesafetyandreliabilityofflangeboltconnectionstructures,itisnecessarytoevaluatetheirfatigueperformanceandpredicttheirfatiguelife.Inrecentdecades,finiteelementanalysissoftwarehasbeenwidelyusedfortheanalysisofmechanicalstructures,includingthepredictionoffatiguelife.ANSYSisoneofthemostpopularandpowerfulfiniteelementanalysissoftwarepackages,whichcanprovideaccuratestressandstrainanalysisincomplexstructures. Inthispaper,theANSYSfatigueanalysismethodofflangeboltconnectionstructureisinvestigated.Adetailedmodelingprocessispresented,andthestressdistributionandfatiguestrengthofthestructureareanalyzed.Therelationshipsbetweenthestresslevelsandthefatiguelifearealsodiscussedindetail. ModelingandAnalysisMethodology ThemodelingprocessoftheflangeboltconnectionstructureisshowninFigure1.Theconnectionstructureconsistsofaflange,twobolts,andagasket.Thediameteroftheflangeis200mm,andthethicknessis25mm.Thediameterandlengthofthebolts