In this work, a magneto-rheological fluid based semi-active squeeze film damper (MR-SFD) is successfully applied to attenuate the excessive vibrations, especially unbalance responses, of a flexible rotor-bearing system. Using the linearized dynamic stiffness model of the MR-SFD, the optimal design and control algorithms that can effectively control excessive unbalance responses of flexible rotors are also proposed; the optimal damper location considering several flexible modes is systematically explored by means of the Structural Dynamics Modification technique. A simple, yet effective, control algorithm is also established in which the optimal input current levels are scheduled by using the singular value analysis. It is shown that the simulation and experimental results with a test rotor are in good agreement and that the proposed design and control algorithms of the MR-SFD are very effective in attenuation of unbalance response of the test rotor up to the second critical speed.
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ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 24–28, 2005
Long Beach, California, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4738-1
PROCEEDINGS PAPER
Unbalance Response Control of Rotor by Magneto-Rheological Fluid Based Squeeze Film Damper Available to Purchase
Keun-Joo Kim,
Keun-Joo Kim
LG Electronics, Inc., Seoul, Korea
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Chong-Won Lee
Chong-Won Lee
KAIST, Daejeon, Korea
Search for other works by this author on:
Keun-Joo Kim
LG Electronics, Inc., Seoul, Korea
Chong-Won Lee
KAIST, Daejeon, Korea
Paper No:
DETC2005-84526, pp. 1053-1060; 8 pages
Published Online:
June 11, 2008
Citation
Kim, K, & Lee, C. "Unbalance Response Control of Rotor by Magneto-Rheological Fluid Based Squeeze Film Damper." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Long Beach, California, USA. September 24–28, 2005. pp. 1053-1060. ASME. https://doi.org/10.1115/DETC2005-84526
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