四自由度盘式制动系统的非线性动力学特性分析
Dynamic Characteristic Analysis of Four-degree-of-freedom Disc Brake System
贾哲 1王靖岳 1盛一涵 1李松格 1王军年2
作者信息
- 1. 沈阳理工大学 汽车与交通学院,沈阳110159
- 2. 吉林大学 汽车仿真与控制国家重点实验室,长春130025
- 折叠
摘要
为了研究非线性因素对盘式制动系统动力学的影响,建立了四自由度的非线性动力学模型.采用Stibeck模型及相关参数,并采用龙格-库塔法求解动力学方程,利用分叉图、频域图、相平面图、时域图、庞加莱截面图分析了不同工况下盘式制动器的振动特性.结果表明,制动压力的增大会导致系统的振动稳定性减弱;较低的车速更容易引发系统的振动;较大的制动片支承刚度会增大系统的振动特性.
Abstract
In order to investigate the influence of nonlinear factors on the dynamic characteristics of disc brake systems,a four-degree-of-freedom nonlinear dynamic model was established.The Stibeck model and related parameters were adopted and the dynamic equations were solved using the Runge-Kutta method.The vibration characteristics of the disc brake under different working conditions were analyzed using bifurcation diagrams,frequency domain diagrams,phase palne diagrams,time domain diagrams,and Poincaré section diagrams.The results show that an increase in brake pressure can lead to a decrease in the vibration stability of the system;lower vehicle speeds are more likely to trigger system vibrations;and a larger brake pad support stiffness can increase the vibration characteristics of the system.
关键词
盘式制动系统/非线性因素/制动压力/庞加莱截面图Key words
disc brake system/nonlinear factors/brake pressure/poincare section plot引用本文复制引用
基金项目
辽宁省自然科学基金项目(2020-MS-216)
汽车仿真与控制国家重点实验室开放基金资助(20191203)
出版年
2024
NETL
NSTL
万方数据