车辆非线性8-DOF模型的简化分析  

Simplification Analysis on the Nonlinear 8-DOF Vehicle Model

作　　者：刘刚[1] 王常乐[1] 郑凯锋[2] 王文竹[1] 

机构地区：[1]沈阳航空航天大学机电工程学院,辽宁沈阳110136 [2]中国北方车辆研究所,北京100072

出　　处：《重庆交通大学学报（自然科学版）》2015年第4期147-150,165,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：沈阳航空航天大学大学生创新计划项目(dcx2014192)

摘　　要：在对车辆侧向动力学的研究中,多采用非线性8自由度(8-DOF)模型,但车辆主要的4个自由度(纵向、侧向、横摆和侧倾)运动微分方程在使用中常需要不同程度的简化,针对这些简化形式,建立了完整的非线性8-DOF模型,对比了各类简化项对整车动力学响应特性的影响,最后给出一种合理的最简形式。Nonlinear eight degree of freedom（ 8-DOF） vehicle model has been widely used to study the motion of vehicle and to develop various vehicle control systems. Referring to many literatures,it was found that the longitudinal,lateral,yaw and roll equations of motion in the 8-DOF model had a large difference. Aiming at these simplification forms,a full nonlinear 8-DOF vehicle model was developed and the effect of different simplified terms on the whole vehicle dynamic response characteristics was discussed. At last,a reasonable simplest form was given.

关 键 词：车辆工程 非线性8-DOF模型 简化分析 最简形式 

分 类 号：U461.1[机械工程—车辆工程]