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The Influence of Vibration on Friction

Journal Article
ISSN: 1946-3995, e-ISSN: 1946-4002
Published October 11, 2009 by SAE International in United States
The Influence of Vibration on Friction
Citation: Hess, D., "The Influence of Vibration on Friction," SAE Int. J. Passeng. Cars – Mech. Syst. 2(2):10-16, 2010,
Language: English


This paper summarizes results from the author's work on friction in dry sliding contacts in the presence of vibration. A number of idealized models of smooth and rough contacts are examined. It is shown that vibration can cause up to a 10% reduction in average friction even with continuous contact. A larger reduction in friction occurs when there is intermittent contact loss. This is found to be true for both elastic and plastic contacts, and for adhesive and plowing mechanisms of friction. The results of this work are compared and validated with measurements from experiments. The results presented are fundamental, but applicable to machine components with contacts including brake systems.