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Influences of Recess Geometry and Restrictor Dimension on Flow Patterns and Pressure Distribution of Hydrostatic Bearings

[+] Author Affiliations
Cheng-Hsien Chen

Army Academy, Taiwan

Yuan Kang, Yeon-Pun Chang, De-Xing Peng

Chung Yuan Christian University, Jhongli, Taiwan

Ding-Wen Yang

Vanung University, Chung-li, Taiwan

Paper No. GT2007-28219, pp. 1045-1053; 9 pages
doi:10.1115/GT2007-28219
From:
  • ASME Turbo Expo 2007: Power for Land, Sea, and Air
  • Volume 5: Turbo Expo 2007
  • Montreal, Canada, May 14–17, 2007
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4794-2 | eISBN: 0-7918-3796-3
  • Copyright © 2007 by ASME

abstract

This paper studies the influences of recess geometry and restrictor dimensions on the flow patterns and pressure distribution of lubricant film, which are coupled effects of hybrid characteristics of a hydrostatic bearing. The lubricant flow is described by using the Navier-Stokes equations. The Galerkin weighted residual finite element method is applied to determine the lubricant velocities and pressure in the bearing clearance. The numerical simulations will evaluate the effects of the land-width ratio and restriction parameter as well as the influence of modified Reynolds number and the jet-strength coefficient on the flow patterns in the recess and pressure distribution in lubricant film. On the basis of the simulation drawn from this study, the simulated results are expected to help engineers make better use of the design of hydrostatic bearing and its restrictors.

Copyright © 2007 by ASME

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