Turbulent Lubrication of Tilting-Pad Thrust Bearings With Thermal and Elastic Deformations

[+] Author and Article Information
H. Hashimoto

Department of Mechanical Production Engineering, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa-ken, Japan

S. Wada

School of Science and Engineering, Waseda University, Shinjuku-ku, Tokyo, Japan

J. Tribol 107(1), 82-86 (Jan 01, 1985) (5 pages) doi:10.1115/1.3261006 History: Received March 12, 1984; Online October 29, 2009


Pad deformations of sector-shaped, tilting-pad thrust bearings affecting turbulent lubrication are discussed theoretically. Solving the lubrication and energy equations with turbulence and centrifugal forces and the elastic and moment balance equations of a pad simultaneously, film pressure and temperature distributions, thermal and elastic deformations and inclinations of a pad are obtained. Film thicknesses at a pivot under a constant shaft speed become larger due to pad deformations, whereby pad inclinations increase and friction torque coefficients decrease outstandingly. It is important to introduce the effects of pad deformations when analysing performances of such bearings running in the turbulent conditions.

Copyright © 1985 by ASME
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