汽车耦合空气弹簧悬架系统动力学模型的研究  

A Study on Dynamics Model for Coupled Air Springs Suspension System

作　　者：鲍卫宁[1] 陈立平[1] 张云清[1] 张广世[2] 

机构地区：[1]华中科技大学CAD中心 [2]四方车辆研究所,青岛266031

出　　处：《汽车工程》2008年第3期231-234,共4页Automotive Engineering

基　　金：国家自然科学基金项目(60674067)、(60574053)资助

摘　　要：推导了空气弹簧、高度阀、连接管路子模块的力学方程,提出了模块化的耦合空气弹簧悬架模型,该模型考虑了高度阀的死区、饱和特性以及节流管路的流量特性等非线性的影响,仿真结果表明,耦合空气弹簧动力学模型能反映空气弹簧相互作用和高度阀充排气对车体抗侧倾的影响,因而可以更加真实反映空气悬架系统的动力学特性。The mechanics equations for air spring, leveling valve and connecting pipe sub-modules are derived, and a modulized model for coupled air springs suspension is proposed, which takes into account the effects of nonlinearity such as the dead zone and saturation characteristics in leveling valve and the non-steady flow in connecting pipe. The results of simulation show that the coupled model can reflect the interaction between air springs and the effects of charging and discharging in leveling valve on the roll resistance of vehicle body, and hence can more truly reflect the dynamics character/stics of air suspension system.

关 键 词：汽车悬架系统 动力学模型 耦合空气弹簧 

分 类 号：U463.33[机械工程—车辆工程]