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Numerical Investigation of Slider Bearings With Limited Corrugation and Power-Law Lubricant

[+] Author Affiliations
B. P. Huynh

University of Technology, Sydney, Sydney, NSW, Australia

Paper No. IMECE2011-65272, pp. 271-275; 5 pages
doi:10.1115/IMECE2011-65272
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5492-1
  • Copyright © 2011 by ASME

abstract

Performance of slider bearings of infinite width but having corrugation of limited extent is investigated numerically, using a commercial Computational Fluid Dynamics (CFD) software package. Lubricant is assumed to be a fluid of power-law type. Over a range of the power-law index, effects of the corrugated section’s location on pressure distribution in the bearing’s fluid film and its load supporting capacity is considered. Load-supporting capacity increases with power-law index n, but saturates when n reaches about 1.7. Ratio of load-supporting capacities between corrugated bearing and smooth-surface bearing varies significantly with respect to n when n < [about 0.8], but stays nearly constant at higher n value. Larger corrugation-wave amplitude enhances the difference in load-supporting capacity between corrugated bearings and the smooth-surface one.

Copyright © 2011 by ASME

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