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RESEARCH PAPERS

Experimental Study on the Effect of a Circumferential Feeding Groove on the Dynamic Force Response of a Sealed Squeeze Film Damper

[+] Author and Article Information
G. L. Arauz, Luis San Andres

Mechanical Engineering Department, Texas A&M University, College Station, TX 77843-3123

J. Tribol 118(4), 900-905 (Oct 01, 1996) (6 pages) doi:10.1115/1.2831626 History: Received September 14, 1994; Revised July 19, 1995; Online January 24, 2008

Abstract

The influence of a circumferential feeding groove on the dynamic force response of a sealed squeeze film damper is determined experimentally. The damper is sealed by means of a serrated piston ring located at the discharge end of the damper. Damper configurations with two different groove depths and journal orbit radii were tested at increasing whirl frequencies. Large levels of dynamic pressure were measured at the circumferential groove, and relatively large tangential (damping) forces are produced at the groove which contribute considerably to the damping characteristics of the test damper. Radial forces were also determined at the feeding groove and at the film land for uncavitated flow conditions.

Copyright © 1996 by The American Society of Mechanical Engineers
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