Mathematical modeling and optimization of cam mechanism in delivery system of an offset press

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• 作者：Tiancheng Ouyang^a ; ^b ; ^{ouyangtiancheng@163.com} ; Pan Wang^b ; Haozhong Huang^a ; Ning Zhang^b ; Nan Chen^b
• 关键词：Cam profile ; Optimization ; Modified trapezoidal curve ; Dynamic model ; Residual vibration
• 刊名：Mechanism and Machine Theory
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：110
• 期：Complete
• 页码：100-114
• 全文大小：1726 K
• 卷排序：110

文摘

A modified trapezoidal curve with an adjustable positive and negative acceleration is adopted to describe the multiple-dwell follower profile in delivery system of an offset press. A two degrees of freedom dynamic model which takes into account the torsional flexibility and damping of the cam and grippers, the contact compliance at the cam/roller and grippers/block interfaces, is established. A new method integrated a single objective optimization procedure with a dynamic model is introduced to improve the kinematic and dynamic characteristics of cam-follower mechanism. Comparisons are made between the original design and the optimal programme.