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RESEARCH PAPERS: Mechanisms Papers

Force Reduction by Motion Design in Spring-Loaded Cam Mechanisms

[+] Author and Article Information
R. C. Johnson

Rochester Institute of Technology, Rochester, NY

J. Mech., Trans., and Automation 106(3), 278-284 (Sep 01, 1984) (7 pages) doi:10.1115/1.3267408 History: Received April 27, 1984; Online November 19, 2009

Abstract

A strategy of motion synthesis is developed for reducing critical forces in relatively rigid high-speed spring-loaded cam mechanisms. A special motion is specifically presented to illustrate application of the developed strategy, for the dwell-rise-dwell displacement case. Critical force graphs are presented for a numerical industrial probelm in three examples, comparing the developed special motion with the commonly used cycloidal and modified trapezoidal motions. Maximum values of cam contact force, inertia force, and spring force are all appreciably reduced by the special motion.

Copyright © 1984 by ASME
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