麦弗逊前悬架优化设计  

Optimization Design of Macpherson Rear Suspension

作　　者：黄文涛[1,2] 高群[1,2] 

机构地区：[1]中山大学工学院,广东广州510006 [2]东莞中山大学研究院,广东东莞523808

出　　处：《机械设计与制造》2016年第4期167-170,174,共5页Machinery Design & Manufacture

基　　金：东莞市重大科技专项(2011215155);广东省战略科技攻关计划(2009A011604003);广东省科技计划项目(2011A010802003)

摘　　要：运用ADAMS/Car建立了某轻量化电动汽车的麦弗逊前悬架运动学模型,进行了平行轮跳仿真试验,分析了其定位参数外倾角、前束角、主销内倾角、主销后倾角以及轮距的变化范围。对于仿真结果中出现的前束角以及外倾角变化范围过大的问题,采用ADAMS/Insight分析摆臂的前点、后点、外点以及减振器上顶点四个硬点坐标对外倾角和前束角的影响,根据设计需求来修改硬点坐标,并通过取折中值得到最优解。优化后,由车轮跳动所引起的前束角和外倾角的变化范围得到减小,且其他悬架参数变化均在允许范围内,所做的优化设计正确、有效,悬架的运动学性能得到明显改善和提升。The macpherson front suspension kinematics model for a lightweight electric car was established using ADAMS/Car.The suspension parallel travel was simulated to analyze the range of front wheel camber angle,toe-in angle,kingpin inclination,caster angle and tread. To solve the problem of excessive change of camber and toe-in angle existing in the analysis,ADAMS/Insight was applied. Through analyzing the effects of four hard point coordinates（swing arm former point,rear point,outer point and damper vertex） on camber angle and toe-in angle,it modified hard point coordinates to fit the design needs,and got the optimal solution by taking compromise values. After optimization,the range of camber？angle and toe-in angle caused by wheel hop were effectively reduced,and other suspension parameters were also within the permissible range and effective design optimization was done. The suspension kinematics performance has improved significantly.

关 键 词：ADAMS/CAR 麦弗逊悬架 ADAMS/Insight 硬点 优化设计 运动学性能 

分 类 号：TH16[机械工程—机械制造及自动化] U463.33[机械工程—车辆工程]