车辆通过减速带时的动力学特性仿真分析  

Dynamics simulation analysis of vehicle passing over speed bump

作　　者：王红艳 谢金乘 张育玮 苗凤娟[2] WANG Hong-yan;XIE Jin-cheng;ZHANG Yu-wei;MIAO Feng-juan(School of Mechanical and Electric Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China;College of Telecommunication and Electronic Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学机电工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔大学通信与电子工程学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2022年第5期1-5,10,共6页Journal of Qiqihar University(Natural Science Edition)

基　　金：黑龙江省自然科学基金项目(ZD2019F004);齐齐哈尔大学教育科学研究项目(GJQTZX2021007);2021年齐齐哈尔大学大学生创新训练计划项目(202110232616)。

摘　　要：研究了汽车通过减速带时的车速及减速带尺寸对其行驶平顺性能的影响。在MATLAB软件中利用SimMechanics模块建立了1/2车辆系统简化模型,利用Simulink模块建立了减速带和路面激励模型,通过联合仿真分析获得了汽车以不同车速通过减速带时的车身垂向加速度和俯仰角加速度。结果表明,相比于路面激励,汽车通过减速带时的车身垂向加速度和俯仰角加速度明显升高,行驶平顺性下降。车速低于4.5 m/s时,减小减速带宽度可以提高行车控速效果;车速高于5.5 m/s时,增加减速带宽度可以提高行车控速效果。This paper presents the study on the effect of the speed of the vehicle and the dimensions of the speed bump on the performance of the smoothness of the vehicle.A physical model of the 1/2 vehicle system is established in MATLAB/SimMechanics.The speed bump model and the road model are separately established in MATLAB/Simulink.The dynamics simulation of the system is performed to obtain the vertical acceleration and the pitch angular acceleration of the car body for different car speeds.The results show that when compared with the road excitation,the speed bump can achieve higher vertical acceleration and higher pitch angular acceleration of the car body,which implies a lower smoothness of the car body.When the vehicle speed is lower than 4.5 m/s,the speed bump with a narrower width shows higher speed control effect.When the vehicle speed is higher than 5.5 m/s,the speed bump with a wider width shows higher speed control effect.

关 键 词：减速带激励 路面激励 汽车 动力学性能 SIMMECHANICS SIMULINK 

分 类 号：TH113.1[机械工程—机械设计及理论] U463.33[机械工程—车辆工程]