Stability and Bifurcation of a Rotor-Fluid Film Bearing System With Squeeze Film Damper

[+] Author and Article Information
Jiazhong Zhang, Qingyu Xu, Tiesheng Zheng

Department of Engineering Mechanics Xi’an Jiaotong University Xi’an Shaanxi Province P. R. of China 710049

J. Vib. Acoust 120(4), 1003-1006 (Oct 01, 1998) (4 pages) doi:10.1115/1.2893907 History: Received November 01, 1996; Online February 26, 2008


The dynamical behaviors of a flexible rotor supported by two plain cylindrical bearings surrounded by squeeze film damper are investigated. In this study, the Hopf bifurcation theory is used to investigate the stability of the equilibrium position of the system, then the unbalanced rotor response is determined by the shooting method and the stability of these solution is examined using the Floquet transition matrix method. It is shown that the quasi-periodic motion and period-doubling motion may be excited by the rotor unbalance.

Copyright © 1998 by The American Society of Mechanical Engineers
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