Friction-Induced Oscillations of a Non-Asbestos Organic Pin Sliding on a Steel Disc

Oleksii Nosko; Takuo Nagamine; Hiroki Mori; Yuichi Sato

doi:10.1515/ama-2015-0014

Friction-Induced Oscillations of a Non-Asbestos Organic Pin Sliding on a Steel Disc

Abstract

Friction-induced oscillations result in deterioration of performance of disc brakes and are generally undesired. We conduct experimental study of friction-induced oscillations in a non-asbestos organic material / steel pair used in disc brakes of motor vehicles. The tests are done by use of a pin-on-disc machine which has the pin sample supported on a deformable beam. The adjustable friction parameters are the disc velocity, contact pressure and temperature. The tests show that the friction coefficient decreases with the sliding velocity and increases with the temperature. The friction-induced tangential oscillation of the pin sample occurs with a frequency equal to the first natural frequency of the beam. The effects of the disc velocity and temperature on the oscillation characteristics are investigated. The oscillation amplitude increases with the disc velocity on the interval of velocities below 2 m/s. Temperature change of several tens of degrees Celsius can result in the oscillation occurrence / decay. The obtained results can be useful for prognostication of friction-induced oscillations in disc brakes with non-asbestos organic pads.

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Authors (4)

Oleksii Nosko dr hab. inż.
- KTH Royal Institute of Technology
Takuo Nagamine
Hiroki Mori
Yuichi Sato

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Details

Category:: Articles
Type:: artykuły w czasopismach
Published in:: Acta Mechanica et Automatica no. 9, pages 84 - 88,
ISSN: 1898-4088
Language:: English
Publication year:: 2015
Bibliographic description:: Nosko O., Nagamine T., Mori H., Sato Y.: Friction-Induced Oscillations of a Non-Asbestos Organic Pin Sliding on a Steel Disc// Acta Mechanica et Automatica -Vol. 9,iss. 2 (2015), s.84-88
DOI:: Digital Object Identifier (open in new tab) 10.1515/ama-2015-0014
Verified by:: Gdańsk University of Technology