轿车后轮定位参数动态特性试验测试方法研究.pdf

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第 36 卷第 2 期同济大学学报(自然科学版) Vol. 36 No. 2
2008 年 2 月 JOURNAL OF TON GJI UN IVERSITY(NATURAL SCIENCE) Feb. 2008
轿车后轮定位参数动态特性试验测试方法研究
魏传峰1 ,周金宏1 ,陈栋华1 ,陈祖山2
(1. 同济大学汽车学院,上海 201804 ; 2. 胶州市交通局,山东胶州 266300)
摘要: 以某典2型2中级轿车后轮为例,对轿车后轮定位参数动态特性试验测试方法进行了研究. 设计制定了基于电-
液伺服四通道车辆道路模拟试验台的后轮定位参数测量试验方案,在振动台2架上测定该车后轮前束角和外倾角的
动态变化特性,研究了扫频信号和随机信号加载和单双侧加载等不同的加载方式对2 测试结果的影响,并对试验结
果进行了误差分析. 研究表明,该车轮定位参数动态特性试验测量方法简单、可行,准确度较高,为车轮定位参数的
动态特性的测取提供了新思路.
关键词: 车轮定位; 前束角; 外倾角; 动态特性
中图分类号: U 467. 3 文献标识码: A 文章编号: 0253 374X(2008) 02 0236 05
Testing Method Research of Rear Wheel Alignment
Parameters Dynamic Characteristics of Car
W EI Chuanf eng1 , ZHOU Hong1 , CHEN Donghua1 , CHEN Zushan2
(1. School of Automotive Engineering , Tongji University , Shanghai 201804 ,China ;
Transportation Bureau ,Jiaozhou 266300 ,China)
Abstract : This paper presents a research of the dynamic characteristics testing method of the rear
wheel of a typical car and new experimental project and testing method based on the four post vehicle
road simulation system. The dynamic characteristics of the toe in and camber of the rear wheel were
measured on the vibration test table. The influences of different input manners were investigated such
as the swept input and the stochastic input , the single input and the dual input . And an analysis was
made of the testing resul