Tribology and Lubricants

  • 제16권2호
  • /
  • Pages.75-83
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  • 2000
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  • 2713-8011(pISSN)
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  • 2713-802X(eISSN)
한국트라이볼로지학회 (Korean Tribology Society)
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슬롯 링을 장착한 전기유변 스퀴즈 필름 댐퍼의 감쇠성능 해석

Damping Performance Analysis of Electro-Rheological Squeeze Film Damper Sealed with Slotted Rings

  • 정시영 (인하공업전문대학, 항공기계과) ;
  • 김창호 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 이용복 (한국과학기술연구원 트라이볼로지연구센터)
  • 발행 : 2000.04.01
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초록

The present paper proposes a new type of an electro-rheological squeeze film damper (ER SFD) of which the damping capacity can be controlled by the application of electric field. The new ER .SFD- is sealed with slotted rings having electrodes at the inside of the constant gap. The ER SFD can provent the problem of electric short which might be occurred in a previous ER SFD. Reynolds lubrication equation for a Newtonian fluid and the end leakage equation for ER fluids are numerically solved to get the pressure distributions and the damping coefficients of the ER SFD. The results show that the damping coefficients greatly increase with increasing the yield shear stress of ER fluid. In addition, the unbalance response analysis of a flexible rotor supported on the new ER SFD implies that the rotor system can be operated with the minimum of rotor amplitude and force transmissibility by controlling the yield shear stress of ER fluids properly.

키워드

참고문헌

  1. Rotordynamics of Turbomachinery Vance, J. M.
  2. Trans. ASME v.99 no.1 Design of Nonlinear Squeeze Film Dampers for Aircraft Engines Gunter, E. J.;L. E. Barrett;P. E. Allaire
  3. Trans. ASME v.99 no.4 Steady State Performance of Squeeze Film Damper Supported Flexible Rotors Rabinowitz, M. D.;E. J. Hahn
  4. J. of Vibration and Acoustics v.120 no.Jan. Unbalance Response of a Flexible Rotor Supported by a Squeeze Film Damper Zhao, J. Y.;Linnett, I. W.;McLean, L. J.
  5. J. of Non-Newtonian Fluid Mechanics v.8 The Electro- Rheological Effect and its Possible Uses Shulman, J. P.;Gordkin, R. G;Korobko, E. V.;Gleb, V. K.
  6. IEEE Trans. on Electrical Insulation v.24 no.5 Electrorheology Jordan, T. C.;Shaw, M. T.
  7. J. of Vibration and Acoustics v.112 An Electroviscous Damper for Rotor Applications Nikolajsen, J. L.;Hoque, M. S.
  8. STLE Triboogy Trans. v.38 no.4 Analysis of a Short Squeeze Film Damper Operating with Electrorheological Fluids Jung, S. Y.;Choi, S. B.
  9. 한국윤활학회지 v.13 no.2 무한 소폭 전기유변 스퀴즈 필름 댐버에 관한 이론적 근사해 정시영;최상규;강덕형
  10. STLE Tribology Trans. v.36 no.1 Behavior of a Squeeze Film Damper with an Electrorheological Fluid Tichy, J. A.
  11. J. of Vibration and Acoustic v.114 Controllable Squeeze Film Damper (An Application of Electro-Rheological Fluid) Morishita, S.;Mitsui, J.
  12. STLE Tribology Trans. v.35 no.4 Electrorheological Fluid-Controlled 'Smart' Journal Bearings Dimarogonas, A.;Kollias, A.
  13. J. of Physics D: Appl. Physics v.26 An Experimental Investigation of the Flow of an Electro-Rheological Fluid in a Rayleigh Stgep Bearing Leek, T. H.;Lingard, S.;Atkin, R. J.;Bullough, W. A.

피인용 문헌

  1. ER 유체 감쇠기를 이용한 유연 회전축 계의 진동제어 vol.12, pp.5, 2000, https://doi.org/10.5050/ksnvn.2002.12.5.365