普通级轿车前悬架(麦弗逊式)设计毕业论文

沈阳理工大学学士学位论文I摘要悬架是现代汽车上的重要总成之一，它把车架（或车身）与车轴（或轮胎）弹性地连接起来。它的主要作用是传递作用在车轮和车身之间的一切力和力矩，比如支撑力、制动力和驱动力等，并且缓和由不平路面传给车身的冲击载荷、衰减由此引起的振动、保证乘员的舒适性、减小货物和车辆本身的动载荷。本文完成的是东方之子轿车前悬架设计，重点从东方之子轿车前悬架的选型、减振器的计算及选型、弹性元件形式的选择计算及选型和横向稳定杆的设计计算。首先，我把形式不同的悬架的优缺点进行了比较，然后定下东方之子轿车前悬架的形式—麦弗逊式悬架，最后围绕麦弗逊式悬架的部件进行设计。先是弹簧的设计计算，再是减振器的计算选型，最后是横向稳定杆的设计。关键词：悬架；麦弗逊式；设计沈阳理工大学学士学位论文IIAbstractSuspensionisanimportantelementofoneofthemodernautomobile,itflexiblytolinkthechassis(orbody)andaxle(ortires).Itsmainroleistheroleoftransmissioninthebodybetweenthewheelsandallthepowerandmoment,suchassupportof,systemdynamicsanddrivingforce,andeasingtheroadtothewholebodyimpactload,decayresultingvibration,ensurethecomfortofthecrew,cargoandvehiclesreducetheirmovingload.Themainstressisfrontsuspensiondesign，Trainingemphasisfromtheformercarmodels,andmodelsAbsorbercalculations,flexiblechoiceofcomponentsandmodelsandformsofstabilizerbardesigndata.Firstofall,IhaveadifferentformofasuspensionoftheadvantagesanddisadvantagescomparedtotheprevioussuspensionofthecarandthensetformEastaronsuspension.ThendesignaroundEastarsuspensioncomponents.First,thespring-loadeddesignterms,tobeabsorbercalculationmodels,ahorizontalstabilizerbarfinalcalculation.stabilizerbar.Keyword:Suspension,Macpherson,Design沈阳理工大学学士学位论文III目录摘要...............................................................................................................................IAbstract.........................................................................................................................II1绪论............................................................................................................................11.1课题背景和意义..............................................................................................11.2悬架的发展历史和现状..................................................................................21.3悬架的发展趋势..............................................................................................41.4课题主要内容和研究目的..............................................................................52悬架结构方案分析....................................................................................................62.1悬架总成分析..................................................................................................62.2独立悬架优缺点分析......................................................................................72.3独立悬架特点与分类......................................................................................82.3.1双横臂式悬架结构及特性分析............................................................82.3.2单横臂式悬架结构及特性分析............................................................92.3.3单纵臂式悬架结构及特性分析..........................................................102.3.4单斜臂式悬架结构及特性分析..........................................................112.3.5麦弗逊式悬架结构及特性分析..........................................................122.1.6扭转梁式悬架结构及特性分析..........................................................133麦弗逊式独立悬架设计..........................................................................................143.1麦弗逊式独立悬架设计概述........................................................................143.3麦弗逊悬架的结构分析................................................................................153.4悬架的弹性特性设计....................................................................................163.5悬架挠度fc的设计.....................................................................................173.5.1悬架静挠度fc的设计......................................................................173.5.2悬架动挠度fd设计............................................................................183.6悬架弹性元件设计........................................................................................183.6.1螺旋弹簧分析......................................................................................183.6.2螺旋弹簧的材料及许用应力选择......................................................193.6.3弹簧参数的计算选择..........................................................................203.6.4计算空载刚度......................................................................................20沈阳理工大学学士学位论文IV3.6.5计算满载刚度......................................................................................203.6.6按满载计算弹簧钢丝直径..................................................................213.6.7螺旋弹簧校核......................................................................................213.6.8小结......................................................................................................223.7导向机构设计................................................................................................233.7.1导向机构的设计要求..........................................................................233.7.2导向机构的布置参数..........................................................................243.7.3导向机构的受力分析..........................................................................273.7.4横臂轴线布置方式的选择..................................................................273.7.5横摆臂参数对车轮定位参数的影响..................................................283.7.