传动轴弯曲固有频率理论计算方法研究

Research on the Theoreical Calculation Method of Bending Natural Frequency of Transmission Shaft

随着我国社会的快速发展,人们生活水平的提高,司乘人员对商用车的驾乘舒适性要求越来越高,商用车越发关注整车NVH性能。文章主要介绍与传动轴振动密切相关的弯曲固有频率的理论计算方法,并将理论计算结果与台架试验、CAE结果做比较,说明理论计算结果的准确性。

With the rapid development of our society and improvement of people’s living standard,passengers and drivers have higher requirements on the comfort type of commercial vehicles,commercial vehicles are increasingly focused on full vehicle NVH performance.This paper mainly introduces the theoretical calculation method of bending natural frequency which is closely related to the vibration of transmission shaft,and the results of theoretical calculation are compared with bench test and CAE,thus,the accuracy of the theoretical calculation results is illustrated.