5-DOF dynamic model of vehicle shimmy system with clearance at universal joint in steering handling mechanism

被引：19
|
作者：
Lu, Jianwei [1 ,2 ]
Xu, Yi [1 ]
Hu, Chen [1 ]
Vakakis, Alexander F. [2 ]
Bergman, Lawrence A. [3 ]
机构：
[1] Hefei Univ Technol, Sch Mech & Automot Engn, Hefei 230009, Anhui, Peoples R China
[2] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL USA
[3] Univ Illinois, Dept Aerosp Engn, Urbana, IL USA
来源：
SHOCK AND VIBRATION | 2013年 / 20卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Universal joint; clearance; nonlinear; vehicle shimmy;
D O I：
10.1155/2013/469497
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A 5-DOF dynamic model of vehicle shimmy system with clearance in universal joint of steering handling mechanism is presented. The sub model of cross shaft universal joint with clearance is built based on Hertz' theory, and two-state model is applied to describe the contact force. The sub model of the universal joint is combined with the simplified dynamic model of steering system, and a 5-DOF dynamic model of vehicle shimmy system with consideration of assembling clearance in universal joint of steering handling mechanism is presented. Based on this model, numerical analysis is carried out to evaluate the influence of clearance in universal joint on the dynamic behavior of the vehicle shimmy system. The results show that the clearance and some other parameters, such as vehicle speed, have coupled contribution to the dynamic behavior of the vehicle shimmy system. The conclusions provide theoretical basis for effective attenuation of vehicle shimmy, especially for those in-service vehicles.
引用
收藏
页码：951 / 961
页数：11
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