Pressurized Oil Squeeze Film Dampers

[+] Author and Article Information
A. Kent Stiffler

Department of Mechanical Engineering, Mississippi State University, Mississippi State, Miss. 39762

J. of Lubrication Tech 102(1), 41-47 (Jan 01, 1980) (7 pages) doi:10.1115/1.3251435 History: Received June 08, 1979; Online November 17, 2009


A pressurized oil squeeze film damper supporting a rigid rotor mounted in antifriction bearings is investigated. Orifice and inherent feed inlets are examined, and it is shown that the clearance determines the inlet resistance for a groove or slot. The film stiffness and damping forces are determined as a function of the restrictor coefficient, rotor unbalance speed and the supply pressure using the short bearing approximation. These forces are related to the system transmissibility. A design methodology for low transmissibilities is presented.

Copyright © 1980 by ASME
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