【作者】 李杰； 秦玉英； 赵旗；

【Author】 Li Jie;Qin Yuying;Zhao Qi;State Key Lab of Automobile Dynamic Simulation,Jilin University;

【机构】 吉林大学汽车动态模拟国家重点实验室；

【摘要】 基于汽车四自由度振动模型,论述了分析汽车随机振动统计特性的傅里叶法和虚拟激励法,建立了两种方法求解汽车振动响应量统计特性的公式,应用两种方法求解了某车型汽车振动响应量的统计特性,验证了虚拟激励法的正确性与简便性。更多还原

【Abstract】 Based on four degrees of freedom model of automobile vibration,Fourier method and pseudo-excitation method are discussed to analyze statistical characteristics of automobile random vibration.The formulas of automobile vibration response variables are respectively built according to the two methods.An automobile is selected to solve its statistical characteristics of automobile vibration response variables,and it is proved that pseudo-excitation method is right and convenient for analyzing statistical characteristics of automobile random vibration.更多还原