螺纹受力分布分析方法及其应用实例-郭卫凡

SCIENCE&TECHNOLOGYINFORMATION201017（400037）【】，，，TT。。【】；；；MethodologyofThreadStressDistributionAnalysisandCaseStudyGUOWei-fanHUANGWen-jian(ChongqingvocationalInstituteofEngineering,Chongqing,400037,China)【Abstract】Thisarticleshowsthecomparisonanalysisofloaddistributiononthreadwhenboltandnutareunderthreedifferentstressconditionsincludinganormalthreadedconnection,aextrusionboltwithTnutandacompressionboltwithTnut,throughfreespringsystemsimulationonthreadedconnection.Finallytheanalysisresultwillbeappliedtoanalyzethefailureofathreadtransmission.【Keywords】Thread；Stress；Analysis；Application0。。，。。，。，。1，。。[1]。[2]。[3]。，。，。，[4]。1Fig.1DiagramofThreadStressonExtrusionBolt，。，。，。，。，。。，。2Fig.2DiagramofThreadStressonCompressionBolt1，，，2。，，。T，3，，。，[5]。3TFig.3DiagramofThreadStressonExtrusionandCompressionBoltwithTNut1，。。。4。。。。，，。4Fig.4SimplifiedModuleofExtrusionBoltStress，5。KA，ka，KB，kb。：[K]{X}={F}○○70201017SCIENCE&TECHNOLOGYINFORMATION●[K]，，{X}7，{F}。5Fig.5SimulationDiagramofExtrusionBoltSpringSystem[K]{F}，{X}。。234.3，44.7，5.7，，，。，，[K]，。6，，。。，，。7，，。，。，T。6Fig.6ThreadStressDistributionunderDifferentLoadCondition7Fig.7ThreadStressDistributiononNormalExtrusionBoltwithDifferentThreadType3，，，3。35。。，。，，。。，。T，T。，，。，，。，。，。T。。。，，。，。，，。，T。T。，，。4。，。，。，。，，。【】［1］Hetenyi,M.,“TheDistributionofStressinThreadConnections”,Proc.SESA,Vol.1,No.1(1943),p.147.AlsoTransASME,Vol.65(1943),AppliedMechanicsSection,pp.A-93.［2］Miller,D.L.,K.M.Marshek,andM.R.Naji,“DeterminationofLoadDistributioninaThreadConnection,”MechanismandmachineTheory,Vol.18,No.6,pp.421-430,PergamonPress,England,1983.［3］Bretl,J.L.,Cook,R.D.,“FiniteElementAnalysisofThreadedConnections”,ASMEpublication80-DE-1,PresentedattheDesignEngineeringShow,Chicago,Ill,March1980.［4］YokoyamaT.,OishiK,KimuraM,IzumiS,SakaiS.,“EvaluationofLooseningResistancePerformanceofConicalSpringWasherbyThree-dimensionalFiniteElementAnalysis,”J.SolidMechMaterEng2008,2(1):38-40.［5］,.,..，1989.［：］○○71