Design of a Squeeze-Film Damper for a Multi-Mass Flexible Rotor

[+] Author and Article Information
Robert E. Cunningham, David P. Fleming

NASA Lewis Research Center, Cleveland, Ohio

Edgar J. Gunter

University of Virginia, Charlottesville, Va.

J. Eng. Ind 97(4), 1383-1389 (Nov 01, 1975) (7 pages) doi:10.1115/1.3438794 History: Received May 23, 1975; Online July 15, 2010


A single mass flexible rotor analysis was used to optimize the stiffness and damping of a flexible support for a symmetric five-mass rotor. The flexible support attenuates the rotor motions and forces transmitted to the support bearings when the rotor operates through and above its first bending critical speed. An oil squeeze-film damper was designed based on short bearing lubrication theory. The damper design was verified by an unbalance response computer program. Rotor amplitudes were reduced by a factor of 16 and loads reduced by a factor of 36 compared with the same rotor on rigid bearing supports.

Copyright © 1975 by ASME
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