Compression of a Single Transverse Ridge in a Circular Elastohydrodynamic Contact

[+] Author and Article Information
R. P. Glovnea, J. W. Choo, A. V. Olver, H. A. Spikes

Tribology Section, Department of Mechanical Engineering, Imperial College of Science, Technology and Medicine, London, UK

J. Tribol 125(2), 275-282 (Mar 19, 2003) (8 pages) doi:10.1115/1.1506325 History: Received April 09, 2002; Revised July 10, 2002; Online March 19, 2003
Copyright © 2003 by ASME
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Schematic of the experimental set-up
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Measured profile of the ridge obtained with a stylus profilometer
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Interferometric image of the contact
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Film thickness profiles at different viscosities
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Film profiles at slide/roll ratio=1, for PAO2 at 100°C
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Film profiles at slide/roll ratio=1, for PAO2 at 25°C
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Film profiles at slide/roll ratio=1, for PAO3 at 21°C
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Pressure field during the passage of the asperity
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Entrapment height as a function of average film thickness
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The inlet gap in the presence of the ridge
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Film perturbation and the compressed ridge
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Amplitude ratio as a function of film thickness




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