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本科毕业论文（设计）题目汽车悬架系统建模与优化学院工程技术学院专业车辆工程年级2011学号姓名指导教师成绩2015年5月31日西南大学本科毕业设计(论文)I目录摘要...........................................................................................................................3Abstract..........................................................................................................................................50文献综述....................................................................................................................................50.1前言.......................................................30.1.1悬架组成元件和分类.....................................30.2国内外有关汽车悬架的研究情况...............................40.2.1国外研究情况...........................................40.2.2国内研究情况...........................................41引言.............................................................................................................................................52双横臂式前独立悬架模型的创建......................................................................................62.1创建新的模型................................................72.2工作环境的设置..............................................72.3设计点（Point）的创建.......................................72.4主销的创建..................................................82.5上横臂的创建................................................92.6下横臂的创建................................................92.7拉臂的创建.................................................102.8转向拉杆的创建.............................................102.9转向节的创建...............................................102.10车轮的创建................................................102.11测试平台的创建............................................112.12弹簧的创建................................................122.13球副的创建................................................132.14固定副的创建..............................................132.15旋转副的创建和修改........................................142.16移动副的创建..............................................152.17点-面约束副的创建.........................................15西南大学本科毕业设计(论文)II2.18模型的保存................................................162.19模型的验证................................................163前悬架模型的仿真分析.....................................................................................................163.1添加驱动...................................................173.2主销内倾角的测量...........................................173.3主销后倾角的测量...........................................193.4前轮外倾角的测量...........................................203.5前轮前束角的测量...........................................223.6车轮接地点侧向滑移量的测量.................................233.7车轮跳动量的测量...........................................253.8前悬架特性曲线的创建.......................................263.8.1主销内倾角-车轮跳动量相对变化曲线.....................263.8.2主销后倾角-车轮跳动量相对变化曲线.....................283.8.3前轮外倾角-车轮跳动量相对变化曲线.....................293.8.4前轮前束角-车轮跳动量相对变化曲线.....................293.8.5车轮接地点侧向滑移量-车轮跳动量相对变化曲线...........303.9保存测试成功的前悬架模型...................................314前悬架模型的细化（将前悬架模型参数化）............................................................314.1设计变量的创建.............................................324.2设计点的参数化.............................................354.3物体的参数化...............................................385前悬架模型的优化..............................................................................................................405.1定义目标函数...............................................405.2参数的优化.................................................416结论..........................................................................................................................................467根据已有参数结合优化结果画出悬架的装配图.....................................................46致谢..............................................................................................................................................48西南大学本科毕业设计(论文)1汽车悬架系统建模与优化摘要：本设计以某轿车的双横臂式前独立悬架为研究对象,以降低汽车轮胎的磨损量为研究目标,对前悬架模型的几何参数进行优化设计。利用MSC.ADAMS/View软件对双横臂式前独立悬架进行了运动学的几何建模、模型参数化、仿真分析和优化设计。通过优化设计我们让车轮接地点的侧向滑移量降低到最小，从而降低了轮胎的磨损量，提高了车辆的行驶稳定性和安全性。利用ADAMS软件建立虚拟样机模型可以降低悬架系统研究的开发周期和成本，因此本次研究有一定的实际意义。关键词：ADAMS/View；悬架系统；运动学仿真；优化设计；虚拟样机西南大学本科毕业设计(论文)2ModelingandOptimizationofVehicleSuspensionAbstract:Thisdesignisbasedononestudyaboutacertaintypeofcar'swishbonetypeindependentsuspension,reducingtheamountofwearofautomobiletiresisselectedasourgoalforthestudy,afterthat,weoptimizethedesignofgeometricparametersofthefrontsuspensionmodel.IbuildaGeometricmodelwhichisbasedonMSC.ADAMS/Viewforthewishbonetypeindependentsuspension,parameterthemodel,makesimulationanalysisofitandthenoptimizethedesign.Wereducethelateraldisplacementofthewheelstoaminimumbyoptimizingthedesign,therebyreducingtheamountofwearofthetireandimprovingdrivingstabilityandsafetyofthecar.WecanuseADAMStoreducethetimeandcostofthestudybycreatingavirtualprototypeofthesuspensionsystem,thereforethisstudyhassomepracticalsignificance.KeyWords:ADAMS/View;SuspensionSystem;KinematicsSimulation;Optimaldesign;VirtualPrototyping西南大学本科毕业设计(论文)30文献综述0.1前言0.1.1悬架组成元件和分类悬架是现代汽车上的重要总成之一，它把车架