한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제13권6호
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  • Pages.484-489
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  • 2003
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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전자석을 이용한 가제어형 스퀴즈필름댐퍼

Controllable Squeeze Film Damper Using an Electromagnet

  • 안영공 (부경대학교 기계공학부) ;
  • 하종룡 (부경대학교 대학원 기계공학부) ;
  • 양보석 (부경대학교 기계공학부) ;
  • 김동조 (부경대학교 대학원)
  • 발행 : 2003.06.01
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초록

The paper represents stability of a rotor system with the squeeze film damper (SFD) using an electromagnet. The electromagnet is installed in the inner damper of the SFD. The proposed SFD has basically the property of a conventional SFD and variable damping property according to variation of the applied electric current. Therefore, when the applied current Is controlled, the whirling vibration of the rotor system can be effectively reduced in a wide operational speed range. In the present work, the performance of the SFD was experimentally investigated according to changing the magnetic field strength. As the applied current increased, damping ratios increased, while whirling amplitudes greatly reduced.

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참고문헌

  1. Transactions of the ASME, Journal of Vibration and Acoustics v.112 no.3 An Electroviscous Damper for Rotor Applications Nikolajsen,J.L.;Hoque,M.S. https://doi.org/10.1115/1.2930126
  2. Transactions of the ASME, Journal of Vibration and Acoustics v.114 no.3 Controllable Squeeze Film Damper (An Application of Electrorheological Fluid) Morishita,S.;Mitsui,J. https://doi.org/10.1115/1.2930269
  3. 한국소음진동공학회논문집 v.11 no.2 ER 유체를 이용한 이방성 스퀴즈필름 댐퍼의 특성 안영공;양보석;Morishita,S.
  4. KSME International Journal v.12 no.6 Directionally Controllable Squeeze Film Damper Using Liquid Crystal Ahn,Y.K.;Morishita,S.;Yang,B.S.
  5. IFToMM Sixth International Conference on Rotor Dynamics Dynamics of Over-hung Rotor with a Disc-Type Magneto-rheological Fluid Damper Zhu,C.;Robb,D.A.;Ewins,D.J.
  6. Transactions of the ASME, Journal of Engineering for Gas Turbines and Power v.122 Experimental Measurements of Actively Contolled Bearing Damping with an Electrorheological Fluid Vance,J.M.;Ying,D. https://doi.org/10.1115/1.483212
  7. Transactions of the ASME, Journal of Engineering for Gas Turbines and Power v.122 Actively Controlled Bearing Dampers for Aircraft Engine Applications Vance,J.M.;Ying,D.;Nikolajsen,J.L. https://doi.org/10.1115/1.1286922
  8. Proc. ImechE v.193 no.31 Investigation of an Electromagnetic Damper for Vibration Control of a Transmission Shaft Nikolajsen,J.L.;Holmes,R.;Gondhalekar,V. https://doi.org/10.1243/PIME_PROC_1979_193_035_02
  9. Transactions of the ASME, Journal of Engineering for Gas Turbines and Power v.112 A Magnetic Damper for First-mode Vibration Reduction in Multimass Flexible Rotors Kasarada,M.E.F.;Allaire,P.E.;Humphris,R.R.;Barrett,L.E. https://doi.org/10.1115/1.2906190
  10. Transactions of the ASME, Journal of Dynamic Systems, Measurement, and Control v.114 Modal Testing and Suboptimal Vibration Control of Flexible Rotor Bearing System by Using a Magnetic Bearing Lee,C.H.;Kim,J.S. https://doi.org/10.1115/1.2896521
  11. Transactions of the ASME, Journal of Vibration and Acoustics v.116 Operation of an Electromagnetic Eddy-current Damper with a Supercritical Shaft Frederick,J.R.;Darlow,M.S. https://doi.org/10.1115/1.2930467
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  13. The Transactions of The Institute of Electrical Engineers of Japan v.119 no.5 A Magnetic Damper Based on Magnetic See-saw Principles and Its Analysis Using Bessel Function Murakami,C.;Satoh,I.