Stability of Rotor-Bearing Systems With Generalized Support Flexibility and Damping and Aerodynamic Cross-Coupling

[+] Author and Article Information
R. E. Warner

Rotors & Blading Development, Westinghouse Electric Corporation, Steam Turbine Division, Lester, Pa.

A. I. Soler

University of Pennsylvania, Philadelphia, Pa.

J. of Lubrication Tech 97(3), 461-469 (Jul 01, 1975) (9 pages) doi:10.1115/1.3452633 History: Received June 27, 1974; Online October 18, 2010


This paper examines stability of the flexible single mass rotor, acted on by motion induced forces due to aero-dynamic cross-coupling and supported most generally by oil film tilting pad bearings which are in turn mounted on flexible, damped supports. Plotted results include the frequency dependent spring and damping coefficients for the 4-pad tilting pad bearing, damping coefficients for the 360-deg squeeze bearing and stability plots of rotor-bearing systems including aerodynamic cross-coupling, the 4-pad tilting pad bearing and the 150-deg partial arc bearing with various support arrangements.

Copyright © 1975 by ASME
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