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RESEARCH PAPERS

Squeeze Film Damper Characteristics for Gas Turbine Engines

[+] Author and Article Information
R. A. Marmol

Government Products Division, Pratt and Whitney Aircraft Group, West Palm Beach, Fla.

J. M. Vance

Department of Mechanical Engineering, University of Florida, Gainesville, Fla.

J. Mech. Des 100(1), 139-146 (Jan 01, 1978) (8 pages) doi:10.1115/1.3453878 History: Received June 01, 1977; Online October 21, 2010

Abstract

A mathematical model for squeeze film dampers is developed, and the solution results are compared with data from four different test rigs. A special feature of the analysis is the treatment of several different types of end seals and inlets, with inlet feedback included. A finite difference method is used to solve the Reynolds equation, with a banded matrix inversion routine. The test data are taken from a new high-speed free-rotor rig, and from three previously tested controlled-orbit rigs.

Copyright © 1978 by ASME
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