Axial Current Induced Pinch Effect on the Squeeze-Film Behavior for Porous Annular Disks

[+] Author and Article Information
J. L. Gupta, P. C. Sinha

Department of Mathematics, Indian Institute of Technology, New Dehli, India

J. of Lubrication Tech 97(1), 130-133 (Jan 01, 1975) (4 pages) doi:10.1115/1.3452518 History: Received March 08, 1974; Online October 18, 2010


An analysis of the effect of axial current induced pinch on the squeeze-film behavior between two annular disks, when the upper disk which has a porous facing and is parallel to the stationary nonporous disk moves normal to itself approaching the lower disk, is presented. The analytical results for the pressure distribution, load-carrying capacity, and the film thickness as a function of time are obtained and the effect of pinch on these quantities is studied. It is found that a load proportional to the square of the axial current can be sustained even when there is no flow.

Copyright © 1975 by ASME
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