某微型电动汽车前悬架系统性能分析与优化研究  

Analysis and Optimization of Mini Electric Car Front Suspension

作　　者：石晶[1] 孙艳[1] 李卫民[2] 

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001 [2]辽宁工业大学机械工程与自动化学院,辽宁锦州121001

出　　处：《机械设计与制造》2015年第3期65-68,72,共5页Machinery Design & Manufacture

基　　金：辽宁省重点科技攻关项目(2013220022)

摘　　要：应用多体系统动力学软件ADAMS/Car建立某微型电动汽车前悬架仿真模型,并进行悬架性能分析研究。针对主销内倾角、前束角、磨胎半径随车轮跳动变化不理想的现象,应用ADAMS_Insight模块进行仿真模型的灵敏度试验分析,选定对前悬架运动特性灵敏度影响较大硬点坐标,采用DOE Response Surface控制策略拟合车轮定位参数及磨胎半径的二次响应面函数,结合MATLAB遗传算法工具箱进行硬点坐标优化。结果表明,ADAMS和MATLAB遗传算法工具箱在悬架定位参数优化中的联合应用,可使前悬架具有较理想的运动特性。A simulation model of a mini electric car front suspension is built with multi-body dynamic software ADAMS/Car, and performance analysis has been done. In view of the kingpin inclination angle, toe angle and scrub radius changing along with wheel runout are unreasonable, a sensitivity test analys!s has been done with ADAMS_Insight module and the most sensitive hard point coordinates are selected for the further optimization. DOE response surface is used to fit wheel alignment par.ameters and scrub radius quadratic funetion, and MATLAB genetic algorithm toolbox is combined to optimize the selected hard point coordinates. The results showed that the ADAMS and MATLAB genetic algorithm toolbox combined application in wheel alignment parameters optimization can achieve more ideal front suspension movement characteristics.

关 键 词：电动汽车 前悬架优化 车轮定位参数 遗传算法 

分 类 号：TH16[机械工程—机械制造及自动化]