非稳态侧风对高速汽车操纵稳定性影响的仿真研究  

Simulation Research on Effect of the Non-steady State Crosswinds on High-speed Vehicle Handling Stability

作　　者：冯永华[1] 赵又群[1] 吴杰[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《农业装备与车辆工程》2006年第11期14-17,共4页Agricultural Equipment & Vehicle Engineering

基　　金：高等学校博士学科点专项科研基金(20040287004);江苏省博士后科研资助计划项目(2004300)。

摘　　要：侧向风对高速汽车的操纵稳定性有明显的影响,其影响规律与风压中心和中性转向点的相对位置密切相关。根据多体系统动力学及运动学理论,在ADAMS软件平台上建立了侧风环境下仿真所需要的整车多体动力学模型。运用汽车侧风稳定性理论,对阶跃阵风作用下的敏感性试验进行了详细的仿真分析;进而引入了驾驶员模型,并对该模型的侧风响应特性进行了初步分析,为优化汽车操纵稳定性参数提供了借鉴依据。The crosswind produces great effect on the handling stability of vehicle at high speed, which is related to the relative location between pressure center of the crosswind and neutral-steer point of the vehicle. A multi-body vehicle dynamics model exposed to crosswinds is established by the ADAMS software. The effect of the step crosswind gusts is analyzed based on the stability theory. And some characteristics are also analyzed under the driver model The results offer important reference data for optimizing vehicle handling stahility with the crosswind.

关 键 词：侧风稳定性 多体动力学 风压中心 仿真分析 

分 类 号：U461.6[机械工程—车辆工程]