The Analytics of the Working Characteristics of Planar Four Bar Linkage Mechanisms

The complex number vector analysis was employed to analyze the motion of crank rocker and crank slider mechanisms. Vector equations were established, from which the extreme angles, the positions of dead point and the minimum transmission angles of the mechanisms were analyzed. According to the angular relationship in the motion, the calculation equations were obtained. The idea is clear and the method is simple. The solution of the problem also makes clearer the position relationship between the links in the mechanism.