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TECHNICAL PAPERS

Dynamic Characteristics of Sealed Squeeze Film Damper With a Central Feeding Groove

[+] Author and Article Information
Keun-Joo Kim, Chong-Won Lee

Center for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering KAIST, Science Town, Daejeon, 305-701, Korea

J. Tribol 127(1), 103-111 (Feb 07, 2005) (9 pages) doi:10.1115/1.1828075 History: Received January 26, 2004; Revised June 30, 2004; Online February 07, 2005
Copyright © 2005 by ASME
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References

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Figures

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Configuration of the sealed SFD with a central feeding groove
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Cross section of a groove–squeeze film land
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Pressure field of a sealed SFD with a central feeding groove: single-stage liquid seal model: (a) 3-dimensional distribution; (b) axial distribution for θ=π
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Schematic of the sealed SFD with a central feeding groove
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Pressure field of a sealed SFD with a central feeding groove: two-stage liquid seal model: (a) 3-dimensional distribution; (b) axial distribution for θ=π
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Scheme of the experimental setup
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Cross-sectional view of the test SFD
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Excitation tests using the Filtered X-LMS algorithm: (a) f=10 Hz (b) f=40 Hz
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Measured signals versus fitted results using the least square error method
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Measured dynamic characteristics
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Predicted versus measured dynamic characteristics with seal gap varied (lines: predicted data, symbols: measured data)
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Active magnetic bearing system
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Block diagram of the Filtered X-LMS algorithm
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Frequency response functions of the AMB system: (a) FRFs in the vertical direction; (b) FRFs in the horizontal direction

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