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A New Type Controllable Squeeze Film Damper Using an Electromagnet

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

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

J. Vib. Acoust 126(3), 380-383 (Jul 30, 2004) (4 pages) doi:10.1115/1.1759693 History: Received May 01, 2003; Revised January 01, 2004; Online July 30, 2004
Copyright © 2004 by American Institute of Physics
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References

Nikolajsen,  J. L., and Hoque,  M. S., 1988, “An Electroviscous Damper for Rotor Applications,” ASME J. Vibr. Acoust., 112(3), pp. 440–443.
Morishita,  S., and Mitsui,  J., 1992, “Controllable Squeeze Film Damper (An Application of Electro-Rheological Fluid),” ASME J. Vibr. Acoust., 114(3), pp. 354–357.
Ahn,  Young Kong, Yang,  Bo-Suk, and Morishita,  Shin, 2002, “Directional Controllable Squeeze Film Damper Using Electro-Rheological Fluid,” ASME J. Vibr. Acoust., 124, pp. 105–109.
Ahn,  Y. K., Morishita,  S., and Yang,  B. S., 1988, “Directionally Controllable Squeeze Film Damper Using Liquid Crystal,” KSME International Journal, 12(6), pp. 1097–1103.
Zhu, C., Robb, D. A., and Ewins, D. J., 2002, “Dynamics of Over-Hung Rotor with a Disc-Type Magneto-Rheological Fluid Damper,” IFToMM Sixth International Conference on Rotor Dynamics, pp. 607–614.
Vance,  J. M., and Ying,  D., 2000, “Experimental Measurements of Actively Controlled Bearing Damping with an Electrorheological Fluid,” ASME J. Eng. Gas Turbines Power, 122, pp. 337–344.
Wereley,  N., , J. Intell. Mater. Syst. Struct., 13(10), pp. 617–685.
Vance,  J. M., Ying,  D., and Nikolajsen,  J. L., 2000, “Actively Controlled Bearing Dampers for Aircraft Engine Applications,” ASME J. Eng. Gas Turbines Power, 122, pp. 466–472.
Nikolajsen,  J. L., and Holmes,  R., and Gondhalekar,  V., 1979, “Investigation of an Electromagnetic Damper for Vibration Control of a Transmission Shaft,” Proc. Inst. Mech. Eng., 193(31), pp. 331–336.
Kasarada,  M. E. F., Allaire,  P. E., Humphris,  R. R., and Barrett,  L. E., 1990, “A Magnetic Damper for First-Mode Vibration Reduction in Multimass Flexible Rotors,” ASME J. Eng. Gas Turbines Power, 112, pp. 463–469.
Lee,  C. H., and Kim,  J. S., 1992, “Modal Testing and Suboptimal Vibration Control of Flexible Rotor Bearing System by Using a Magnetic Bearing,” ASME J. Dyn. Syst., Meas., Control, 114, pp. 244–252.
Frederick,  J. R., and Darlow,  M. S., 1994, “Operation of an Electromagnetic Eddy-Current Damper with a Supercritical Shaft,” ASME J. Vibr. Acoust., 116, pp. 578–580.
Kligerman,  Y., and Gottlieb,  O., 1998, “Dynamics of a Rotating System with a Nonlinear Eddy-Current Damper,” ASME J. Vibr. Acoust., 120, pp. 848–853.
Murakami,  C., and Satoh,  I., 1999, “A Magnetic Damper Based on Magnetic See-Saw Principles and Its Analysis Using Bessel Function,” Trans. Inst. Electr. Eng. Jpn., Part A, 119(5), pp. 745–752.

Figures

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Rotor test rig with a controllable SFD
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Controllable SFD with an electromagnet
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Whirl orbits at first critical speed
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Time responses of free vibration

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