NUMERICAL INVESTIGATION OF SLIDER BEARINGS WITH LIMITED CORRUGATION AND POWER-LAW LUBRICANT

Publisher:
ASME
Publication Type:
Conference Proceeding
Citation:
Proceedings of the 2011 ASME International Mechanical Engineering Congress & Exposition, 2011, pp. 1 - 5
Issue Date:
2011-01
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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. Loadsupporting 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 loadsupporting capacity between corrugated bearings and the smooth-surface one.
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