Effect of Vibration Amplitude on the Friction of the Point Contact

Abstract:

The interaction between vibration and friction exists widely in the mechanical system. In order to research the effect of the vibration amplitude on the contact point friction in the mechanical system, a new apparatus is developed independently to measure the point contact friction influenced by the changing amplitude. The data acquired through the apparatus show that the friction at the contact point decreases with increasing of the amplitude. In terms of theoretical analysis in this paper, the increasing of the amplitude actually reduces the contact area at the point. In addition, the friction at the contact point is proportional to the contact area. So, the friction decreases with the decreasing contact area caused by the increasing amplitude.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 1211-1214
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.1211
• Online since: May 2014
• Authors: Jian Dong Lu*, Lu Hai Li, Gai Mei Zhang
• Keywords: Friction, Mechanical System, Point Contact, Vibration Amplitude

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