【摘要】 结合传统图解法进行运动分析。介绍一种简便实用、作图误差小，且不必选速度比例尺、加速度比例尺，直接在机构运动简图上作速度多边形和加速度多边形的图解法。更多还原

【Abstract】 Conducting the motion analysis by the traditional graphic method, the article introduces one graphic method which is simple and convenient. The errors of drawing design are small and need not select the scale of speed and acceleration. We can draw speed and acceleration polygon on the motion sketch of mechanism.更多还原