Clearance, Leakage, and Contact Temperature in a Thermoelastically Deformed Seal-Like Configuration

[+] Author and Article Information
R. A. Burton, V. Nerlikar

Department of Mechanical Engineering and Astronautical Sciences, Northwestern University, Evanston, Ill.

J. of Lubrication Tech 97(3), 546-551 (Jul 01, 1975) (6 pages) doi:10.1115/1.3452669 History: Received May 09, 1974; Online October 18, 2010


Equations are derived for clearance, leakage, and contact temperatures for conditions where initially flat rubbing surfaces are deformed thermally to produce a sequence of equally spaced contact patches, separated by regions where the surfaces withdraw from one another. One paradoxical result is that increased contact pressure or preload on the seal increases leakage when sliding takes place above a critical speed.

Copyright © 1975 by ASME
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