Magnetohydrodynamic Squeeze Film Bearings

[+] Author and Article Information
F. T. Dodge

Department of Mechanical Sciences, Southwest Research Institute, San Antonio, Texas

J. F. Osterle

Carnegie Institute of Technology, Pittsburgh, Pa.

W. T. Rouleau

Department of Mechanical Engineering, Carnegie Institute of Technology, Pittsburgh, Pa.

J. Basic Eng 87(3), 805-809 (Sep 01, 1965) (5 pages) doi:10.1115/1.3650692 History: Received July 29, 1964; Online November 03, 2011


A theoretical analysis is given for squeeze film bearings which use an electrically conducting fluid, such as a liquid metal, as the lubricant and which are in the presence of a magnetic field. Electrical energy is added to the film by an exterior source. By considering infinitely long rectangular plates, the fluid film thickness is determined as a function of time, with the applied magnetic and electric fields as parameters. It is shown that the squeeze action is altered significantly when the electric field is symmetrical about the center of the bearing, and results are presented for various values of the Hartmann number.

Copyright © 1965 by ASME
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