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Effects of velocity-slip and viscosity variation on journal bearings

Published online by Cambridge University Press:  17 February 2009

R. Raghavendra Rao  and
K. R. Prasad
R. Raghavendra Rao
Affiliation:
Department of Mathematics, S.V. University College of Engineering, Tirupati 517502, India; e-mail: rrrsvu@sify.com.
K. R. Prasad
Affiliation:
Department of Mathematics, S.V. University College of Engineering, Tirupati 517502, India; e-mail: rrrsvu@sify.com.
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Abstract

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A generalised form of the Reynolds equation for two symmetrical surfaces is derived by considering slip at the bearing surfaces. This equation is then used to study the effects of velocity-slip for the lubrication of journal bearings using half-Sommerfeld boundary conditions. Expressions for pressure and load capacity and the coefficient of friction are obtained and numerically analysed for various parameters. It is found that the load capacity decreases with slip. This is unfavourable for lubrication. The coefficient of friction decreases with a high viscous layer and increases with slip.

Type
Research Article
Information
The ANZIAM Journal , Volume 46 , Issue 1 , July 2004 , pp. 143 - 155
Copyright
Copyright © Australian Mathematical Society 2004

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