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TECHNICAL PAPERS

Directionally Controllable Squeeze Film Damper Using Electro-Rheological Fluid

[+] Author and Article Information
Young Kong Ahn, Bo-Suk Yang

School of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, Pusan 608-739, Korea

Shin Morishita

Department of Mechanical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan e-mail: shin@ynu.ac.jp

J. Vib. Acoust 124(1), 105-109 (Jul 01, 2001) (5 pages) doi:10.1115/1.1420702 History: Received February 01, 2001; Revised July 01, 2001
Copyright © 2002 by ASME
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References

Figures

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Mechanism of effective ER
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Experimental apparatus of the flexible rotor with squeeze film damper
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Construction of directionally controllable SFD
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Response to impact test with variation of applied electric fields
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Time histories with variation of damping coefficient by simulation
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Spectrum of impact response under various electric fields
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Variation of resonance frequency and damping ratio
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Variation of resonance frequency and damping ratio by simulation
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Mode shapes of flexible rotor
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Whirl orbits under various electric fields
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Whirl orbits under various support damping coefficients by simulation
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Vertical and horizontal amplitudes under various support damping coefficients by simulation

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