Surface roughness effects on squeeze films in curved circular plates

Surface roughness effects on squeeze films in curved circular plates The stochastic theory of hydrodynamic lubrication of rough surfaces is used to study the effect of surface roughness on the performance of the squeeze film between circular curved plate and a flat plate. In the context of stochastic theory, two types of one‐dimensional roughness patterns (circumferential and radial roughness) are considered. The stochastic Reynolds equation for the two types of roughness patterns is derived. The closed form expressions for the mean squeeze film pressure, mean load carrying capacity and the squeeze film time are obtained. It is found that, the circumferential one‐dimensional surface roughness pattern increases the mean squeeze film pressure and the load carrying capacity whereas the radial one‐dimensional roughness pattern affects the squeeze film characteristics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Surface roughness effects on squeeze films in curved circular plates

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Publisher
Emerald Publishing
Copyright
Copyright © 2004 Emerald Group Publishing Limited. All rights reserved.
ISSN
0036-8792
DOI
10.1108/00368790410558266
Publisher site
See Article on Publisher Site

Abstract

The stochastic theory of hydrodynamic lubrication of rough surfaces is used to study the effect of surface roughness on the performance of the squeeze film between circular curved plate and a flat plate. In the context of stochastic theory, two types of one‐dimensional roughness patterns (circumferential and radial roughness) are considered. The stochastic Reynolds equation for the two types of roughness patterns is derived. The closed form expressions for the mean squeeze film pressure, mean load carrying capacity and the squeeze film time are obtained. It is found that, the circumferential one‐dimensional surface roughness pattern increases the mean squeeze film pressure and the load carrying capacity whereas the radial one‐dimensional roughness pattern affects the squeeze film characteristics.

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Dec 1, 2004

Keywords: Films (states of matter); Surface texture; Hydrodynamics; Lubrication

References

  • Surface roughness effect on the dynamic stiffness and damping characteristics of compensated hydrostatic thrust bearings
    Lin, J.R.
  • Effect of surface roughness on the static characteristics of rotor bearing with couple stress fluids
    Naduvinamani, N.B.; Hiremath, P.S.; Gurubasavaraj, G.

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