Abstract: Optimal Control Theory is applied to high-speed cam-follower systems design in this paper. There are a number of important competing characteristics that a good cam design must satisfy. A performance index functional proposed in this paper is very effective to improve the competing characteristics. The optimization design approach developed, compared to current polydyne cam design, decreases the maximum contact force, contact stress, and energy loss 19%, 10% and 17% of the polydyne cam values, while increasing the can speed for cam-follower separation by 6%. Significant improvements are also made in the pressure angle, cam curvature, and the follower force.

Key words: 凸轮, 优化设计, 最优控制