对曲柄摇杆机构极位夹角定义的修正

A Correction of the Definition of the Angles between the Limited Positions in Crank-Rocker Mechanisms

本文对现行的机械原理教材中关于曲柄摇杆机构的极位夹角定义进行了讨论,指出了不妥之处,并提出了修正。

In this paper,the definition of the angles between the limited positions of crank-rocker mechanism in the textbook of Mechanical Principles adopted now was discussed,the improper points of view in it were pointed out,and the necessary corrections were made as well.