The bearing load of a plane inclined sector-shaped hydrodynamic thrust bearing, under simultaneous translation and transverse vibration, is measured experimentally. The results are used to evaluate the lubrication theory solutions. Consequently, both the influences of the unsteady film inertia, measured by the squeeze Reynolds number Res, and the convective film inertia, measured by the modified Reynolds number Re*, on load amplitude and phase are investigated. It is found that the inertia-neglected lubrication solutions underestimate: (1) the oscillatory component of the bearing load by 6.5 percent at Res = 1.0 and by 1.4 percent at Re* = 1.0, and (2) the mean component of the bearing load by 0.7 percent at Res = 1.0 and by 2.0 percent at Re* = 1.0 Moreover, the fluid inertia induces an equivalent negative spring force component which shifts the phase of the bearing load by 9.5 deg at Res =1.0 and by 4 deg at Re* = 1.0 as compared to the lubrication theory predictions. Hence it can be an important consideration when designing bearings for vibration control purposes.
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July 1994
Research Papers
Experimental Evaluation of Sector-Shaped Hydrodynamic Thrust Bearings Under Translation and Transverse Vibration
Y. K. Wang,
Y. K. Wang
Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720
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C. D. Mote, Jr.
C. D. Mote, Jr.
Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720
Search for other works by this author on:
Y. K. Wang
Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720
C. D. Mote, Jr.
Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720
J. Tribol. Jul 1994, 116(3): 521-527 (7 pages)
Published Online: July 1, 1994
Article history
Received:
February 28, 1992
Revised:
December 21, 1993
Online:
June 5, 2008
Citation
Wang, Y. K., and Mote, C. D., Jr. (July 1, 1994). "Experimental Evaluation of Sector-Shaped Hydrodynamic Thrust Bearings Under Translation and Transverse Vibration." ASME. J. Tribol. July 1994; 116(3): 521–527. https://doi.org/10.1115/1.2928875
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