摘要
通过将轮胎简化为串联弹簧系统,对爆胎过程中轮胎径向特性变化进行了数学描述。结合爆胎轮胎切向力学特性变化,利用Simulink建立了14自由度爆胎整车模型。在100 km/h直线行驶与弯道行驶工况下,利用该模型对爆胎车辆侧向加速度、横摆角速度、车身侧倾角与Carsim进行对比仿真,所得结果较为一致。该模型对爆胎过程有了较为完整的数学描述,为爆胎车辆建模提供了基本框架。
Mathematical characterization of changes in tire radial fying tire to be a series spring system. Combining the changes properties when tire blow-out was made by simpliin shear mechanical properties of tire, a 14-DOF whole vehicle model was established using Simulink/Matlab. Under straight and curve drive condition at 100 km/h, lateral acceleration, yaw acceleration and roll angle of a vehicle with blown-out tire were simulated by the proposed model and the Carsim model. Results of the two models show a good agreement. The proposed model provides a relatively comprehensive mathematical characterization for tire blow-out course and a basic frame for modeling of vehicle with blown-out tire. Based on work in this paper ,further analysis in model expansion, vehicle dynamics after tire blow-out and stability control can be carried out.
出处
《机械科学与技术》
CSCD
北大核心
2012年第12期2003-2009,共7页
Mechanical Science and Technology for Aerospace Engineering
基金
教育部长江学者与创新团队发展计划项目(531105050037)
湖南大学汽车车身先进设计制造国家重点实验室自主课题项目(61075003)资助
关键词
串联弹簧系统
爆胎
轮胎径向特性
整车模型
series spring system
tire blow-out
tire radial properties
vehicle model
mathematical model
