E型多连杆后悬架系统振动分析及优化设计  

ANALYSIS AND OPTIMIZATION DESIGN OF THE VIBRATION OF E⁃TYPE MULTI⁃LINK REAR SUSPENSION SYSTEM

作　　者：李琤[1,2] 景园 LI Cheng;JING Yuan(College of Automobile and Rail,Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002,China;Collaborative Innovation Center for Intelligent Vehicle Technology,Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002,China)

机构地区：[1]安徽机电职业技术学院汽车与轨道学院,芜湖241002 [2]安徽机电职业技术学院智能汽车技术协同创新中心,芜湖241002

出　　处：《机械强度》2024年第5期1120-1127,共8页Journal of Mechanical Strength

基　　金：2024年度安徽省高校科研项目重点项目(2024AH050206);2022年度安徽省高校科研项目重点项目(2022AH052362)资助。

摘　　要：以某款国产SUV的E型多连杆后悬架系统为研究对象,分析其拓扑结构和运动学关系,并利用Adams/Car和Hypermesh建立刚柔耦合的后悬架系统运动模型。以车轮外倾角和外倾前束的变化量为优化目标,设置上控制臂和前束拉杆的内外点坐标值作为设计变量,在Adams/Insight中进行优化设计。通过优化前后仿真曲线对比,表明车轮外倾角、车轮前束变化量有所减小,运动学特性得到一定的改善。同时,在实车悬架平顺性试验中,进一步验证了仿真结果的准确性。Taking the E⁃type multi⁃link rear suspension system of a domestic SUV as the research object,its topological structure and kinematic relationship were analyzed.The rigid⁃flexible coupling rear suspension system motion model was established by using Adams/Car and Hypermesh software.Taking the change of wheel camber and camber toe⁃in as the optimization objective,the coordinate values of the inner and outer points of the upper control arm and toe tie rod were set as design variables.Then,the design was optimized in Adams/Insight.Through the comparison of simulation curves before and after optimization,it is shown that the change of wheel camber and toe is reduced,and the kinematics characteristics are improved to some extent.At the same time,the accuracy of the simulation results is further verified in the actual vehicle suspension ride test.

关 键 词：Adams/Insight E型多连杆后悬架 优化设计 平顺性试验 

分 类 号：U467.492[机械工程—车辆工程]