基于状态空间法的四分之一车辆模型分析  

The quarter car model analysis based on the state space method

作　　者：彭伟[1] 何惠龙[1] 

机构地区：[1]电子科技大学中山学院,广东中山528402

出　　处：《汽车实用技术》2015年第7期27-30,共4页Automobile Applied Technology

摘　　要：悬架系统是车辆行驶系统中的一个重要组成部分,主要用于吸收和缓冲车辆行驶过程中来自车轮和路面接触产生的振动,车辆行驶的平顺性主要靠悬架系统来保证。本文采用两自由度四分之一车辆模型对悬架系统动力学模型进行建模,结合状态空间分析法分析不同悬架等效刚度和阻尼、不同轮胎等效刚度、不同车辆载重等情况下对车辆行驶平顺性的影响,为悬架的优化设计提供参考。A suspension system is one important part of the vehicle driving system. The main effect of the suspension system is to absorb and buff the vibration from the contact between the vehicle tire and road surface for guaranteeing the ride comfort during cars’ running. In this paper, the quarter car model, which is simplified as a two-freedom vibratory system, is used to model the suspension system for conducting dynamic analysis. A design optimization reference for the suspension system is provided by considering the effects to the ride comfort from equivalent stiffness and damping of the suspension, equivalent stiffness of the tire, and vehicle load based on the space state method.

关 键 词：状态空间 四分之一车辆 悬架系统 平顺性 

分 类 号：U463.3[机械工程—车辆工程]