Eccentric Operation of the Squeeze-Film Damper

[+] Author and Article Information
Coda H. T. Pan

Shaker Research Corporation, Ballston Lake, N. Y.

Jorgen Tonnesen

Technical University of Denmark, Department of Machine Elements, Lynby, Denmark

J. of Lubrication Tech 100(3), 369-377 (Jul 01, 1978) (9 pages) doi:10.1115/1.3453187 History: Received July 05, 1977; Online October 20, 2010


The squeeze-film damper, undergoing a whirl orbit as may be caused by rotor unbalance, resists eccentricity of the whirl orbit with a static stiffness which is proportional to the dynamic force carried by the squeeze-film. In addition, the fluid film force would develop nonsynchronous components. The short bearing analysis is applied to treat this problem. Implications regarding the unbalance dynamics of a rigid rotor in the presence of a static load are examined.

Copyright © 1978 by ASME
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