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Effect of Front Wheel Kingpin Alignment Parameters on Vehicle Steering Stability
Author(s): YAN Rui-lei, ZHAO Liang, WEI Yong
Pages: 168-
172,200
Year: 2014
Issue:
6
Journal: Computer Simulation
Keyword: Kingpin alignment parameters; Vehicle steering stability; Four degrees of freedom dynamic model; Yaw Rate; Computer simulation;
Abstract: 为研究前轮主销定位参数对车辆转向稳定性的影响,将车辆简化为四自由度动力学模型,并建立状态微分方程,基于Simulink对前轮力阶跃输入下的横摆角速度瞬态响应进行计算机仿真,分析不同车速下前轮主销定位参数对车辆转向稳定性的影响.结果表明,前轮主销后倾角的改变主要影响车辆在高速行驶时的稳定性,且后倾角越大横摆角速度的超调量越小,反应时间越短,而前轮主销内倾角的改变主要影响低速行驶车辆的稳定性,且内倾角越小,反应时间越短.结果可为车辆操纵稳定性设计提供依据.
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