Research on Dynamics of Four-Bar Linkage with Clearances at Turning Pairs : 2nd Report, Analysis of Crank-Lever Mechanism with Clearance at Joint of Crank and Coupler Using Continuous Contact Model

A method employing the continuous contact model which was described in the 1st report is adapted for analysing the dynamic motion of a crank-lever mechanism with a clearance at the joint of crank and coupler. Results of numerical calculation of link motions and the input torque are shown. Comparison is made between theory and experimental results for the input torque, and it is shown that this model is sufficient for solving the dynamic motions of the mechanism with a clearance. Further, the effects of the amount of clearance, driving speed, and mass ratio of the coupler and the lever of the input torque are discussed for the design of a linkage.