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Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board Member: Fetecau, Corina / Kiefer, Claus / Röpke, Gerd / Steeb, Willi-Hans

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1865-7109
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Squeeze Film Problems of Long Partial Journal Bearings for Non-Newtonian Couple Stress Fluids with Pressure-Dependent Viscosity

Jaw-Ren Lin
  • Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-22-59, Jhongli, Taiwan, R.O.C.
  • :
/ Li-Ming Chu
  • Department of Mechanical and automation Engineering, I-Shou University, Dashu, Kaohsiung, Taiwan, R.O.C.
/ Chi-Ren Hung
  • Department of Mechanical Engineering, Nanya Institute of Technology, No. 414, Sec. 3, Jhongshan E. Rd., Jhongli, 320, Taiwan, R.O.C.
/ Rong-Fang Lu
  • Department of Mechanical Engineering, Nanya Institute of Technology, No. 414, Sec. 3, Jhongshan E. Rd., Jhongli, 320, Taiwan, R.O.C.
Published Online: 2014-06-02 | DOI: https://doi.org/10.5560/zna.2011-0009

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.

Keywords : Partial Bearings; Pressure-Dependent Viscosity; Non-Newtonian Fluids; Squeeze Films.


Received: 2011-02-01

Revised: 2011-04-13

Published Online: 2014-06-02

Published in Print: 2011-09-01


Citation Information: Zeitschrift für Naturforschung A. Volume 66, Issue 8-9, Pages 512–518, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.5560/zna.2011-0009, June 2014

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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