Nonlinear Dynamic Behaviors of a Complex Rotor-Bearing System

[+] Author and Article Information
T. Zheng

Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433, P.R. China

N. Hasebe

Department of Civil Engineering, Nagoya Institute of Technology, Gokiso-Cho, Showa-Ku, Nagoya 466, Japan

J. Appl. Mech 67(3), 485-495 (Nov 26, 1999) (11 pages) doi:10.1115/1.1286208 History: Received April 28, 1998; Revised November 26, 1999
Copyright © 2000 by ASME
Topics: Force , Bearings , Rotors
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Grahic Jump Location
Sketch showing one bearing arch of a journal bearing
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Sketch of the rotor-bearing system for calculation
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Leading Floquet multiplier versus nt for ω 494 rad/s
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Journal orbits of two bearing stations calculated by a different reduced model for ω=494 rad/s
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A jump phenomenon—showing time series of velocities of station D1 for ω=6720 rad/s
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A jump phenomenon—showing journal orbits of station D1, B1, D5, and B2 for ω=6720 rad/s
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Wave lines of horizontal velocity of station D1 for several subharmonic motions
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Orbits of station D1 for several subharmonic motions
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Torus and torus bifurcation—second and ninth-order of modal phase plains of Poincaré map
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Time series and corresponding FFT spectrum of first order of modal velocity for a chaotic state (ω=12623 rad/s)
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Chaotic motion—trajectory of four typical order of phase plains for ω=12623 rad/s




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