A Pendulating Model for Mechanisms With Clearances in the Revolutes

[+] Author and Article Information
M. A. Townsend

Department of Mechanical Engineering, University of Toronto, Toronto, Ontario, Canada

W. M. Mansour

Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada

J. Eng. Ind 97(1), 354-358 (Feb 01, 1975) (5 pages) doi:10.1115/1.3438563 History: Received May 24, 1974; Online July 15, 2010


A model is developed for evaluating impulsive forces and torques in mechanisms with clearances. It is built around the momentum-exchanges during impacts rather than following the traditional path of simulating the contacting surfaces by springs and dashpots. The spectrum of the impulses for a four bar mechanism is obtained for a number of cycles of the crank rotation. The model provides a proper design tool for investigating wear, life-expectancy, and noise characteristics of high-speed mechanisms with clearances.

Copyright © 1975 by ASME
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