车辆随机振动响应分析  

Response Analysis of Vehicle Random Vibration

作　　者：吕士宝[1] 鲍春梅[1] 张丽[1] 

机构地区：[1]兰州交通大学数理与软件工程学院,甘肃兰州730070

出　　处：《洛阳理工学院学报（自然科学版）》2012年第3期72-75,共4页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

摘　　要：以1/4车辆单自由度模型为研究对象,根据牛顿第二定律,建立了车辆垂直方向的振动数学方程。通过虚拟激励法,构造路面虚拟激励,推导出频率响应函数,进而计算各响应量的统计学特征。经过实例仿真,表明车辆结构参数对系统响应量是有影响的,应当重视车辆结构参数的选取。Taking single degree of freedom model with 1/4 vehicles as the study subject, this paper has established the mathematical equations of vehicle vertical vibration umler Newton＇s Second Law. By Pseudo-excitation method, it has constructed the virtual excitation of the road and deduced the frequency response function, and then calculated the amount of statistical characteristics of each response. The simulation shows that the vehicle structure parameters affect the system response, so the selection of the vehicle structure parameters is worth more attention.

关 键 词：随机振动 虚拟激励法 结构参数 

分 类 号：O21[理学—概率论与数理统计]