测量汽车传动轴临界转速的一种简易方法

A Simple Measurement Method for Critical Turning Speed of Motor Vehicle Propeller Shaft

介绍了用正弦激振测量传动轴的共振频率，从而确定汽车传动轴的临界转速的方法。以解放牌CA10型汽车传动轴为例，测得了共振频率和振型，并与理论计算值进行了比较。其结果证明此方法简单、安全、准确可靠，而且便于推广。

The method of sine exciting vibration combined with phose distinguish method hasbeen used for measurement of propeller shaft resonance frequency so as to determine the criticalturning speed of the motor vehicle propeller shaft. As an example,resonance frequency and vibra-tion pattern of the Jie-fang model CA10 truck propeller shaft has been measured,of which the re-sult is in conformity with the theoretical calculated values- Therefore it is further proved that themethod is simple,safe,accurate,reliable and easy to extend the application.