猎豹CJY6470E越野车悬架系统的设计

本科生毕业设计I摘要本设计主要研究猎豹CJY6470E越野车前后悬架的设计分析及方法，同时兼顾舒适性和运货能力。汽车悬架是汽车的车架与车桥或车轮之间的一切传力连接装置的总称，其作用是传递作用在车轮和车架之间的力和力扭，并且缓冲由不平路面传给车架或车身的冲击力，并衰减由此引起的震动，以保证汽车能平顺地行驶。汽车悬架性能是影响汽车行驶平顺性、操纵稳定性和行驶速度的重要因素。本设计前悬架采用麦弗逊独立悬架，后悬架采用纵置钢板弹簧。经过查阅大量的资料，以及结合所学知识，对前、后悬架进行方案论证、结构方案分析以及设计计算。包括对减振器、螺旋弹簧、钢板弹簧、导向机构及横向稳定杆的设计计算。关键词：悬架；麦弗逊；减震器；钢板弹簧；螺旋弹簧本科生毕业设计IIAbstractThisdesignmainlyresearchthecheetahCJY6470Esuvsfordesignandanalysisofboththefrontandrearsuspensionmethod,Bothcomfortanddeliverycapacity.Automotivesuspensionistheframeandwheelaxleorbetweenalltheforceofthefloor-boardoftheconnecteddevice,theeffectisthetransferfunctionbetweenthewheelsandtheframeofthetorsionforceandtheforce,andthebufferbytheunevenroadsurfacetothefra-meortheimpactofthebody,andtheattenuationcausedbyvibration,toensurethatthecarca-nrunsmoothly.Automobilesuspensionperformanceisthecarridecomfort,handlingsta-bilityandspeedofimportantfactor.ThisdesignUSESthemacphersonindependentsuspension,frontsuspensionafterleafspringsuspensionusinglongitudinal.Throughaccesstoahugemassofdata,andcombiningwiththeknowledge,toschemecomparisonbeforeandafterthesuspension,structureschem-eanalysisanddesigncalculation.Includingforshockabsorberandcoilspring,leafspring,thecalculationinthedesignofsteeringmechanismandthelateralstabilizerbar.Keywords:suspension;Thepaper;Shockabsorber;Leafspring;Helicalspring本科生毕业设计目录摘要......................................................................................................................IAbstact................................................................................................................II第1章绪论.......................................................................................................11.1课题研究目的和意义...............................................................................................11.2课题研究现状...........................................................................................................11.3研究方法...................................................................................................................41.4设计的拟解决的主要问题.......................................................................................41.5预期结果...................................................................................................................4第2章悬架结构分析及选择.......................................................................................52.1悬架的作用...............................................................................................................52.2悬架的组成...............................................................................................................52.3悬架设计要求...........................................................................................................82.4悬架的分类及特点...................................................................................................82.4.1非独立悬挂系统............................................................................................92.4.2独立悬挂系统................................................................................................92.4.3比较选型......................................................................................................122.5本章小结.................................................................................................................12第3章悬架主要参数的布置.....................................................................................133.1悬架偏频的选择.....................................................................................................143.2悬架的静挠度fc....................................................................................................143.3悬架动挠度.............................................................................................................153.4悬架弹性特性.........................................................................................................153.5本章小结.................................................................................................................16第4章前麦弗逊独立悬架的设计...........................................................................174.1弹性元件的设计与校核.........................................................................................17本科生毕业设计4.1.1弹簧形式、材料的选择..............................................................................174.1.2螺旋弹簧的直径..........................................................................................174.1.3其他参数的计算..........................................................................................174.1.4弹簧的校验..................................................................................................184.2减振器的设计与校核.............................................................................................194.2.1相对阻尼系数Ψ的确定.............................................................................204.2.2阻尼系数δ的确定......................................................................................204.2.3最大卸荷力0F的确定................................................................................214.2.4筒式减振器工作缸直径D的确定.......