Simplification Analysis on the Nonlinear 8-DOF Vehicle Model

doi:10.3969/j.issn.1674-0696.2015.04.29

Journal of Chongqing Jiaotong University(Natural Science) ›› 2015, Vol. 34 ›› Issue (4): 147-150.DOI: 10.3969/j.issn.1674-0696.2015.04.29

• Vehicle & Electromechanical Engineering • Previous Articles Next Articles

Simplification Analysis on the Nonlinear 8-DOF Vehicle Model

Liu Gang¹, Wang Changle¹, Zheng Kaifeng², Wang Wenzhu¹

1. School of Mechanical Engineering, Shenyang Aerospace University, Shenyang 110136, Liaoning, China; 2. Chinese North Vehicle Research Institute, Beijing 100072, China

Received:2013-08-20 Revised:2014-05-15 Online:2015-08-30 Published:2015-09-18

车辆非线性8-DOF模型的简化分析

刘刚¹，王常乐¹，郑凯锋²，王文竹¹

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

作者简介:刘刚（1975—），男，辽宁沈阳人，讲师，博士，主要从事悬架理论与控制方面的研究。E-mail:liugang_209209@163.com。
基金资助:
沈阳航空航天大学大学生创新计划项目（dcx2014192）

Abstract

Abstract: 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.

Key words: vehicle engineering;nonlinear 8-DOF vehicle model, simplification analysis, simplest form

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。

关键词: 车辆工程, 非线性8DOF模型, 简化分析, 最简形式

CLC Number:

U461.1

Liu Gang, Wang Changle, Zheng Kaifeng, Wang Wenzhu. Simplification Analysis on the Nonlinear 8-DOF Vehicle Model[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(4): 147-150.

刘刚，王常乐，郑凯锋，王文竹. 车辆非线性8-DOF模型的简化分析[J]. 重庆交通大学学报（自然科学版）, 2015, 34(4): 147-150.

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Simplification Analysis on the Nonlinear 8-DOF Vehicle Model

车辆非线性8-DOF模型的简化分析

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