Abrasion, Clearance and Matlab-Aided Optimized Profile Design of Cam Mechanism

Abstract:

To demonstrate the importance of abrasion and clearance to machinery, this paper studied abrasion of Cam mechanism contact surface, illustrated how abrasion and clearance relate to each other and investigated how they influence kinematic accuracy of the mechanism. In the case of Cam mechanism with flat-bottomed translation follower, it elaborated abrasion styles and bad points and depicted heart-shaped abrasion rate curve. It proposed a mathematical model and optimized design for cam profile, taking abrasion design as an objective function. Aided by Matlab and its optimization toolbox, it also proposed a optimized solution to the objective function mathematical model. And powered by computing capabilities of Matlab, it determined the coefficients in a high-order five-term function and found the optimal value of the objective function quickly in need. By optimization, mechanism abrasion improves and its kinematic accuracy and reliability increase, prolong its life.

• Periodical: Applied Mechanics and Materials (Volumes 416-417)
• Pages: 1120-1125
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.416-417.1120
• Online since: September 2013
• Authors: Zhen Jun He, Peng Xu, Jian Rong Lu
• Keywords: Abrasion, Cam Mechanism, Clearance, MATLAB, Optimized Design

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