两种典型轿车前悬架运动特性的对比研究  

A Comparative Study on the Kinematic Characteristics of Two Typical Front Suspensions of Sedan

作　　者：熊飞[1,2] 兰凤崇[1] 陈吉清[1] 李罡[1,2] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640 [2]广州汽车工业集团汽车工程研究院,广州511434

出　　处：《汽车工程》2015年第10期1161-1166,1201,共7页Automotive Engineering

基　　金：广东省战略性新兴产业专项资金项目资助

摘　　要：为了从定性和定量的角度全面揭示麦弗逊式和双横摆臂式两种悬架的运动特性及其影响规律,以最小化车轮定位参数、侧倾中心高度和抗点头率等参数梯度的绝对值为目标,采用悬架运动学参数对硬点坐标的灵敏度分析和运用遗传算法进行运动学特性优化相结合的方法,对比分析了这两种悬架的运动学特性,通过试验验证了优化结果,最后给出了汽车开发过程中对这两种悬架选型的建议。For qualitatively and quantitatively revealing the kinetic characteristics of McPherson suspension and double wishbone suspension and their law of influence,with minimizing the absolute values of gradients of wheel alignmemt parameters,roll center height and anti-dive rate as objective,the kinetic characteristics of two types of suspension are comparatively analyzed by using sensitivity analysis of suspension kinetic parameters to the coordinates of hard-points,combined with kinetic characteristics optimization with genetic algorithm.The results of optimization are verified by tests.Finally a recommendation on the selection of two types of suspension in the process of vehicle development is given.

关 键 词：轿车 前悬架 运动学特性 灵敏度分析 遗传算法 

分 类 号：U463.33[机械工程—车辆工程]