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RESEARCH PAPERS

The Design Optimization of Cam Mechanisms With Oscillating Flat-Face Followers Under Curvature Constraints

[+] Author and Article Information
J. Angeles, S. K. Saha, M. Gonzalez-Palacios

Department of Mechanical Engineering and McGill Research Centre for Intelligent Machines, McGill University, 817 Sherbrooke Street W., Montreal, Canada H3A 2K6

C. S. Lopez-Cajun

Instituto Mexicano del Transporte, Queretaro, Mexico

J. Mech. Des 116(1), 311-314 (Mar 01, 1994) (4 pages) doi:10.1115/1.2919364 History: Received June 01, 1992; Online June 02, 2008

Abstract

This paper follows an accompanying one on the constrained minimization of cam profiles with translating flat-face followers. Here, the corresponding problem for oscillating flat-face followers is discussed. The unconstrained optimization of this type of cam mechanisms, aimed at the minimization of the area of the cam disk, has been reported elsewhere. In this paper we recognize that unconstrained cam-size minimization can lead to profiles with curvature discontinuities, i.e., cusps, which should be eliminated, for they give rise to inadmissibly large contact stresses. The conditions under which curvature discontinuities arise are derived. These conditions lead to a simple constrained minimization procedure, whose application is illustrated with a fully solved numerical example.

Copyright © 1994 by The American Society of Mechanical Engineers
Topics: Design , Optimization
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