RESEARCH PAPERS: Mechanisms Papers

Coulomb Friction in High-Speed Cam Systems

[+] Author and Article Information
A. P. Pisano

Mechanical Engineering Department, University of California, Berkeley, CA 94720

J. Mech., Trans., and Automation 106(4), 470-474 (Dec 01, 1984) (5 pages) doi:10.1115/1.3258596 History: Received June 13, 1984; Online November 19, 2009


Coulomb friction in the rocker arm pivot of a high-speed cam system was quantified and its effect on high-speed response was examined. Experimental dynamic data from an automotive valve train was used to determine the static and dynamic coefficients. A lumped-parameter dynamic model was used to determine the role of Coulomb damping in actuation forces and valve toss.

Copyright © 1984 by ASME
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