橡胶衬套刚度对悬架特性的影响  

Influence of rubber bushing stiffness on suspension performance

作　　者：高晋[1] 宋传学[1] 

机构地区：[1]吉林大学汽车工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2010年第2期324-329,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划重点项目(20040332-2)

摘　　要：对ADAMS/Car中衬套刚度的计算进行了说明,在此基础上建立了一个双横臂悬架的刚弹耦合模型。通过ADAMS/Insight对各个衬套的刚度进行灵敏度分析,分析了衬套刚度的变化对车轮定位参数和悬架刚度的影响,得出车轮定位参数随橡胶衬套刚度变化的规律。选取刚度变化对车轮定位参数影响较大的衬套力比例因子作为设计变量,选取车轮外倾角、前束、主销内倾角、轮距为优化目标,对不同的衬套取不同的比例因子,通过ADAMS/Insight自动完成设计的空间组合,并进行仿真计算。根据目标函数对设计空间过滤,最终达到对车轮定位参数的优化设计。The calculation of bushing stiffness was introduced in the software ADAMS/Car,and based on it a rigid-flex coupling model was built for the automotive double wishbone suspension system.The sensitivity analyses of the siffness of different rubber bushings were done by the software ADAMS/Insight,and the influences of the rubber bushing stiffness on the wheel alignment parameters and the suspension stiffness were analyzed,and the change patterns of the wheel alignment parameters versus the rubber bushing stiffness were obtained.Taking the scale factors of the bushing forces that affects significantly on the wheel alignment parameters as the design variables,the camber angle,the toe angle,the kingpin inclination angle and the wheel track as the optimization targets,for the different scale factors of different bushings,the workspaces were achieved automatically by ADAMS/Insight,and the simulating calculation was performed.The wheel alignment parameters were optimized by filtering the workspaces according to the target functions.

关 键 词：车辆工程 汽车悬架 橡胶衬套 灵敏度分析 衬套刚度 

分 类 号：U463.33[机械工程—车辆工程]