下控制臂橡胶衬套刚度对双横臂独立悬架影响外文文献翻译、中英文翻译

附录InfluenceofFrontDoublewishboneIndependentSuspensionPerformanceonFrontRubberBushingStiffnessofLowerControlArmLiuXintian，HungHu,WangJichang，ZhaoLihui，GaoHui，WangYansongAbstract--FrontdoublewishboneIndependentsuspensionisbuiltaccordingtohardpointparametersofacar.Aftertherubberbushingstiffnessoflowercontrolarmischanged．ThesuspensionperformanceisanalyzedanddiscussedwithmultibodydynamicandSuspensionKinematicstheory.Theconclusioncanbedrawnasfollows：whenwheelsarehoping,Allthestiffnessoflowercontrolarmhavenoeffectoncamberangle，casterangleandkingpin_incl_angle，andtorsionstiffnessofrubberbushinghasheavyeffectontoeangle，butaxial，radialstiffnesshavenoeffect,Whilesteering，allthestiffnessoflowercontrolarmrubberbushinghavenoeffectoncamberangleandtoeangle，torsionstiffnesshasaffectsoncamberangle,axialstiffnesshasalittleandradialstiffnesshasheavy,axialandtorsionstiffnesshavenoneonkingpin_incl_angle，butradialstiffnesshasheavy．Duringtheanalyzeoftractionforceandbrakeforce,torsionstiffnessoflowercontrolarmrubberbushinghasnoeffectoncamberangle,kingpin_incl_angleandtoeangle,axialstiffnesshasalittle,andradialstiffnessheavy,AccordingtothecurveofcasterangleVSbrakeforce,radialandaxialstiffnessofrubberbushinghavealittleaffectsoncasterangle,buttorsionstiffnessnoneKeywords-FrontDoubleWishboneIndependentSuspension,rubberbushing,stiffnessINTRODUCTIONDoublewishboneindependentsuspensioniswidelyusedonautomobilenow.Twowishboneshaveequallengthornot.EquallengthofdoublewishboneindependentsuspensionisNotusuallyusednow,Unequallengthofdoublewishboneindependentsuspensioncankeepgoodroadabilityandreducetheinterferencebetweensuspensionandsteerbar,withreasonablestructuralparametersandProperarrangementstomaketheparameterofwheelspinandwheellocationfloatinginPermissiblerange.therefore,itiswidelyusedinfrontsuspensionofcarandsmalltruck.Frontdoublewishboneindependentsuspensionisregardasresearchobjectusingmulti—bodydynamicsandSuspensionKinematicstheorytoanalyzeanddiscustheinfluenceofsuspensionperformancebyaxial,torsion,radicalstiffnessofrubberbushing.IITHEMODELOFTHEMULTI—BODYDYNAMICSMultibodydynamicstheoryisthesubjectthatstudyonthemovementruleoftheobjectinsystem.Itiscomposedofmulti_rigid_bodydynamicsandmulti_fexible_bodydynamics:Whereq,,aresystem’ssystemposition,speed,accelerationvector,islangrangemultiplier,tRdenotethetime,Mdenoteinertiamatrixofmechanicalsystem,deonteconstraintjaclbianmatrix,Qdenoteoutsideforcevector,denotelocationconstraintequation.;;Wherev(q,t)isspeedrightside,isacclerationrightside.Initialconditionq(0)=(0)=Puttingtheinitialconditioninto(2)and(3),therigidmovementcanbecalculatedbyabovefunctionsIIIFRONTDOUBLEWISHBONEINDEPENDENTSUSPENSIONMODELFigure1,frontdoublewishboneindependentsuspensionmodelAccordingtothesuspensionkeyhardpointvalueofacertaincar,frontdoublewishboneindependentsuspensionKinematicsmodelisbuiltasshownFigure1.Thecharacteristicsoflocationparametersareanalyzedinsomeoperatingconditions.Duringtheanalysis,axial,torsion,radicalstiffnessofrubberbushingisrespectivelyincreasingto5timesoforiginal,andthencomparisonandanalysiswiththeoriginal.IVTHEINFLUENCEOFWHEELLOCATIONPARAMETERSBYLOWERCONTROLARMFRONTBUSHINGSTIFFNESSWhenfrontrubberbushingstiffnessoflowercontrolarmischanged，theinfluenceofwheellocationparametersarediscussedseparatelyundertheconditionsofwheelhop,steering,tractionforceandbrakingforce.WheelhopCamberangleVSwheeltravelCasterangleVSwheeltravelKingpin_incl_angleVSWheeltravelToeangleVSWheeltravelFigure2.Thecurveofrubberbushingstiffnessoflowercontrolarm,wheellocationparametersandwheeltravel.Infig2,thefourcurvesareundertheconditionsofunchanginglowercontrolarmrubberbushingstiffnessandradial，axial，torsionstiffnessincreasing5times(thechangesoflowercontrolarmrubberbushingstiffnessarealsolikethisinfig.3,4and5).Infig.2whilewheelsishoping,accordingtothecurveofcamberanglevswheeltravel,casteranglevswheeltravelandkingpin_incl_anglevswheeltravel,theconclusionisdrawnthatradial,axialandtorsionstiffnessofrubberbushinghasnothetoeangle,Radicalstiffnessofrubberbushinghasheavyonthetoeangle,butaxialandtorisionstiffnesshavealittlefromthecurveoftoeanglevswheeltravel.BSteeringanalyzeCamberangleVSSteeringangleCasterangleVSSteeringangleKingpin_incl_anglevssteeringangleToeanglevssteeringangleFigure3.Thecurveofrubberbushingstiffnessoflowercontrolarm,wheellocationparametersandSteeringangleInfig.3,Whilesteering,accordingtothecurveofCamberangleVSSteeringangleandToeangleVSSteeringangle,radial,axialandtorsionstiffnessofrubberbushinghasnoeffectoncamberangleandtoeangle.InthecurveofcasterangleVSSteeringangle,torsionstiffnessofrubberbushinghasnoeffectoncasterangle,radicalstiffnesshasalittlebutaxialstiffnessheavy.Axialandtorsionstiffnessofrubberbushinghasnoeffectonkingpin_incl_angle,butaxialstiffnesshasheavybythecurveofkingpin_incl_angleVSSteeringangle.CbrakeforceanalyzeCasteranglevsbrakeforceKingpin_incl_anglevsbrakeforceToeanglevsbrakeforceFigure4.Thecurveofrubberstiffnessoflowercontrolarm,wheellocationparametersandbrakeforceInfig.4,whenbraking,accordingtothecurveofCamberangleVSBrakeforce,kingpin_incl_angleVSBrakeforceandToeangleVSBrakeforce，torsionstiffnessofrubberbushinghasnoeffectonthecamberangle,kingpin_incl_angleandtoeangle,axialstiffnesshasalittle,butradialstiffnessheavy.InthecurveofcasterangleVSBrakeangle,radialandaxialstiffnessofrubberbushinghavealittleeffectoncasterangle,buttorsionstiffnesshasnone.DtractionforceanalyzeCamberanglevstractionforceCasteranglevstractionforceKingpin_incl_anglevstractionforceToeanglevstractionforceFigure5.Thecurveofrubberbushingstiffnessoflowercontrolarm,wheellocationparametersandtractionforceInfig.5,whilebraking，accordingtothecurveofCamberangleVSTractionforce，kingpin_incl_angleVSTractionforceandToeangleVStractionforce,torsionstiffnessofrubberbushinghaslittleeffectonthecamberangle,kingpin_incl_angleandtoeangle，axialstiffnesshasalittle，butradialstiffnessheavy.InthecurveofcasterangleVSTractionangle，radialandaxialstiffnesshavealittleeffectoncasterangle,andtorsionstiffnesshasnone.V.CONCLUSIONSUsingmulti-bodydynamicsandsuspensionKinematicstheorytoanalyzetheinfluenceofwheelslocationparameter.whentheradial,axialandtorsionstiffnessoflowercontrolarmfront,rearrubberbushingischanging.whenwheelshop，accordingtotheanalyzeresultofradial，axial，torsionstiffnessoflowercontrolarmfrontrubberbushing,allthestiffnessoflowercontrolarmhavenoeffectoncamberangle，casterangle,casterangleandkingpin_incl_angle,andtorsionstiffnessofrubberbushinghasheavyeffectontoeangle,butaxialradialstiffnesshavenoeffect.whilesteering,allthestiffnessoflowercontrolarmrubberbushinghavenoeffectoncamberangleandtoeangle,torsionstiffnesshasnooncasterangle,axialstiffnesshaslittleandradialstiffnesshasheavy,axialandtorsionstiffnesshavenoneonkingpin_incl_angle,butradialstiffnesshasheavy.Intheanalyzeoftractionforceandbrakeforce,torsionstiffnessoflowercontrolarmrubberbushinghasnoeffectoncamberangle,kingpin_incl_angleandtoeangle,axialstiffnesshasalittle,andradialstiffnessheavy.AccordingtothecurveofcasterangleVSbrakeforce,radialandaxialstiffnessofrubberbushinghavealittleaffectsoncasterangle,buttorsionstiffnessnone.下控制臂橡胶衬套刚度对双横臂独立悬架影响摘要-前双横臂独立悬架的建立是根据汽车硬点参数，对性能进行了分析，并与多体动力学和悬架运动学进行了理论探讨。可以得出如下结论:当车轮需要运转时，所有的下控制臂的刚度并没有影响外倾角，后倾角和主销内倾角，橡胶衬套和扭转刚度对前束角产生很大影响，而轴向，径向刚度没有任何效果。然而在转向时，所有的下控制臂衬套并无外倾角和前束角的影响，及扭转刚度对弯度角的影响，轴向刚度，径向刚度相对较大，轴向和扭转刚度对主销内倾角无影响，但径向刚度较大影响。在分析牵引力和制动力的时候，下控制臂扭转橡胶衬套刚度没有对车轮外倾角，主销内倾角和前束角产生影响，对轴向刚度影响的却很少，径向刚度大，根据后倾角与制动力曲线，径向和轴向橡胶衬套刚度对施力者有一个小角度的影响，但扭转刚度不变。关键词--前双横臂独立悬架，橡胶衬套，刚度I、简介如今，双横臂独立悬架被广泛用于汽车行业中。等长横臂和不等长横臂，现在等长的双横臂独立悬架通常不是很常用，不等长的双横臂独立悬架可以保持良好的能力和减少道路悬挂之间的干扰，如果能够设置合理的结构参数和适当安排，就可以以使车轮打滑和车轮定位参数在允许范围内浮动。因此，它被广泛应用于汽车和小卡车前悬架等。前双横臂独立悬架被做为研究对象，运用多体动力学和悬架运动学理论来分析悬浮轴，扭转，橡胶衬套刚度性能影响的激励方面等内容。II、多体运动学分析根据多体运动学研究物体运动规律:；；初始条件q(0)=(0)=III、前双横臂独立悬架模型依据某悬架关键点的重要性，建立前双横臂独立悬架运动学模型如图1所示.在某些工况下分析，寻找位置参数的特点。在分析过程中，轴向，扭转，橡胶衬套刚度分别比原来相比增长了5倍，然后比较，并与原有的数据分析。图a前双横臂独立悬架模型IV、下横臂对车轮定位参数的影响当橡胶衬套控制臂的刚度改变时，对车轮定位参数的影响进行了车轮下单独跳，转向，牵引力和制动力的条件等方面的讨论。轮跳车轮外倾角与车轮跳动主销后倾角与车轮跳动主销内倾角与车轮跳动车轮前束角与车轮跳动在图2中，在四条曲线下不变的情况下控制臂衬套刚度橡胶和径向，轴向，扭转刚度增加5倍（下控制臂衬套刚度也像3，4和5那样）。根据弯度角曲线与车轮