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Purely squeezing film characteristics in partial porous journal bearings with infinite length

Chi‐Ren Hung (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, People’s Republic of China)
Long‐Jin Liang (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, People’s Republic of China)
Tong‐Bou Chang (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, People’s Republic of China)
Jaw‐Ren Lin (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, People’s Republic of China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 1 April 2004

353

Abstract

The influences of viscous shear stresses on the squeezing film behaviors in porous journal bearings with infinite length are analyzed. Based on the Brinkman model, two general coupled Reynolds‐type equations derived between two curved surfaces are applied to evaluate the bearing characteristics. According to the results obtained, the Brinkman model predicts quite different squeezing film performances to those obtained by using the slip‐flow model and the Darcy model. In addition, the quantitative effects of viscous shear stresses of the Brinkman model upon the porous squeezing film characteristics are more pronounced for porous journal bearings with moderate permeability parameters and higher eccentricity ratios.

Keywords

Citation

Hung, C., Liang, L., Chang, T. and Lin, J. (2004), "Purely squeezing film characteristics in partial porous journal bearings with infinite length", Industrial Lubrication and Tribology, Vol. 56 No. 2, pp. 107-113. https://doi.org/10.1108/00368790410524056

Publisher

:

Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited

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