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TECHNICAL PAPERS

A Mechanism of Low Subharmonic Response in Rotor/Stator Contact—Measurements and Simulations

[+] Author and Article Information
Götz von Groll, David J. Ewins

Department of Mechanical Engineering, Imperial College of Science, Technology and Medicine, London SW7 2BX, United Kingdom

J. Vib. Acoust 124(3), 350-358 (Jun 12, 2002) (9 pages) doi:10.1115/1.1467648 History: Received June 01, 2001; Revised January 01, 2002; Online June 12, 2002
Copyright © 2002 by ASME
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References

Figures

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A Jeffcott rotor with stator
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Force-displacement characteristics
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Rotor/stator interaction for friction>0
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Instability and its remedy
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Rotor and stator assembly in overhung configuration
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Measured periodic vibrations at 1/11Ω
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Measured quasi-periodic vibrations at ≈1/23Ω
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Measured periodic vibrations at 1/4 Ω
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Measured quasi-periodic vibrations at ≈1/32 Ω
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Orbits in of time-marching solutions at steady speeds
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Spectra of time-marching solutions at steady speeds

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