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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Squeeze Film Problems of Long Partial Journal Bearings for Non-Newtonian Couple Stress Fluids with Pressure-Dependent Viscosity

  • Jaw-Ren Lin EMAIL logo , Li-Ming Chu , Chi-Ren Hung and Rong-Fang Lu

Abstract

According to the experimental work of C. Barus in Am. J. Sci. 45, 87 (1893) [1], the dependency of liquid viscosity on pressure is exponential. Therefore, we extend the study of squeeze film problems of long partial journal bearings for Stokes non-Newtonian couple stress fluids by considering the pressure-dependent viscosity in the present paper. Through a small perturbation technique, we derive a first-order closed-form solution for the film pressure, the load capacity, and the response time of partial-bearing squeeze films. It is also found that the non-Newtonian couple-stress partial bearings with pressure-dependent viscosity provide better squeeze-film characteristics than those of the bearing with constant-viscosity situation.

Received: 2011-2-1
Revised: 2011-4-13
Published Online: 2014-6-2
Published in Print: 2011-9-1

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