【作者】 赵艳辉； 董明明；

【Author】 Zhao Yanhui;Dong Mingming;Beijing Institute of Technology;

【机构】 北京理工大学机械与车辆学院；

【摘要】 本文提出了一种测量车身绕其质心的转动惯量的方法。该方法采用MTS公司激振台施加激励,通过对试验过程中采集到的车身垂直振动加速度信号进行频谱分析,得到其角振动固有频率。然后建立车身振动模型,通过计算得出其转动惯量。最后以某型号SUV为例,计算其转动惯量。更多还原

【Abstract】 This paper presents the method of testing the body’ s rotational inertia of cars,which is rotating around the center of mass.The vibrostand of MTS is used to provide incentives in this method During the testing,the spectrum of acceleration of vertical vibration is recorded,and then we can get the natural frequency of the angular vibration.After that we can establish the vibration model and gain rotational inertia through calculation.Finally take an SUV as example,to calculate it’ s rotational inertia.更多还原