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TECHNICAL PAPERS

Stability and Stability Degree of a Cracked Flexible Rotor Supported on Journal Bearings

[+] Author and Article Information
G. Meng

Institute of Mechatronics Engineering, Foshan University, Guangdong, P. R. of China

R. Gasch

Institute of Aeronautics and Astronautics, Technical University, Berlin, Germany

J. Vib. Acoust 122(2), 116-125 (Dec 01, 1999) (10 pages) doi:10.1115/1.568448 History: Received May 01, 1992; Revised December 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Schematic diagram of a cracked flexible rotor supported on journal bearings
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Influence of gravity parameter on the diagram of stability degree, without crack case (ΔKξ=0.0,ΔKη=0.0,De=0.01,So=2.0,α=0.2)
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Lobes bearing, influence of gravity parameter and fixed Sommerfeld number on the diagram of stability degree, without crack case (ΔKξ=0.0,ΔKη=0.0,De=0.01,α=0.2)
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Position of crack ridge zones, influence of mass ratio for large gravity parameter (4-lobes bearing, ΔKξ=0.7,ΔKη=0.0,De=0.01,So=0.1,Wg=5.0)
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Position of crack ridge zones, influence of mass ratio for small gravity parameter (tilting pad bearing, ΔKξ=0.5,ΔKη=0.0,De=0.01,So=0.1,Wg=0.001)
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Position of crack ridge zones, influence of stiffness ratio (tilting pad bearing, ΔKη=0.0,De=0.01,So=0.1,α=0.2,Wg=0.001)
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Influence of gravity parameter on the diagram of stability degree (ΔKξ=0.7,ΔKη=0.0,De=0.01,So=2.0,α=0.2)
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4-Lobes bearing, influence of fixed Sommerfeld number and gravity parameter on the diagram of stability degree (ΔKξ=0.5,ΔKη=0.0,De=0.01,α=0.2)
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Tilting pad bearing, influence of stiffness change ratio and gravity parameter on the diagram of stability degree (ΔKη=0.0,De=0.01,So=2.0,α=0.2)

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