Dynamic Identification of Convergent Externally Pressurized Gas-Bearing Gaps

[+] Author and Article Information
P. Plessers, R. Snoeys

Department of Mechanical Engineering, Catholic University of Leuven, 3030 Heverlee, Belgium

J. Tribol 110(2), 263-270 (Apr 01, 1988) (8 pages) doi:10.1115/1.3261597 History: Received March 01, 1985; Online October 29, 2009


The dynamic behavior of externally pressurized gas bearings is described by means of frequency response functions, from which dynamic stiffness and damping coefficients are derived. A numerical method is presented to calculate the frequency response function for plane circular thrust bearings with convergent gap geometry. A test procedure is described for measuring the frequency response function of an air film in order to verify computational, results. The comparison reveals a fairly good agreement between measured and calculated frequency responses. Finally, the effect of bearing parameters on the frequency response function of the air film is investigated.

Copyright © 1988 by ASME
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