用拆杆拆副法作平面多杆复杂机构的运动分析

任何平面多杆复杂机构，通过假想的拆杆拆副，均可转化为自由度增加了的纯双杆组机构。在调用双杆组子程序的基础上，按照应遵从的几何等同条件，利用线性内插法可有效逼近原机构的精确位置。接着，利用线性叠加法则，不难求解原机构的速度和加速度。文中引有算例，说明方法的简易可行。

KINEMATIC ANALYSIS OF PLANAR MULTI-LINK COMPLEX MECHANISMS VIA METHOD OF DISCONNECTING CERTAIN LINKS&PAIRS

Any planar multi-link non-dyad complex mechanism can be transformed into dyad mechanism with increasing number of degrees-of-freedom by the method of imaginarily disconnecting certain links and pairs. According to the geometric identity conditions established for the transformed dyad mechanism, the position analysis of the original mechanism can be carried out with high accuracy via successive linear interpolation .According to the velocity and acceleration identity conditions, the velocity and acceleration analysis of the original mechanism is easy to accomplish via the principle of linear superposition .This method of kinematic analysis is quite easy and general. In the paper two examples are given to show the effectiveness of the method.