소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

ER 스퀴즈 필름 댐퍼로 지지된 고속 회전 로터의 동적 계수에 관한 연구

Dynamic Coefficients of a High-Speed Rotor Supported by a Slotted ER Squeeze Film Damper

  • 이용복 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 정시영 (인하공업전문대학 항공기계과) ;
  • 이남수 (한양대학교 대학원 기계설계학과) ;
  • 최동훈 (한양대학교 기계설계학과)
  • 발행 : 2000.12.01
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초록

A new electro-rheological squeeze film damper (ER-SFD) has been sealed with slotted piston rings which have electrodes at the inside of the constant gap. The slotted ER-SFD can prevent the problem of electric discharge which might be occurred in the previous configuration of an ER-SFD. The current paper presents the extraction of linearized dynamic coefficients within small orbit where these coefficients are controlled by the application of electric strength. Test rig has been modified to isolate the damper section for dynamic coefficient extraction. The results show that rotordynamic coefficients, damping and inertia terms, increase with increasing supply voltages, while stiffness coefficients decrease with increasing supply voltages. notating speed of rigid shaft does not affect these coefficients.

키워드

참고문헌

  1. Rotordynamics of Turbomachinery Vance, J. M.
  2. Journal of Lubrication Technology Trans. ASME v.99 no.1 Design of Nonlinear Squeeze Film Dampers for Aircraft Engines Gunter, E. J.;Barrett, L. E.;Allaire, P. E.
  3. 7th ISROMAC Conference Vibration Control of a Pressurized, Sealed, ER Fluid SFD supported rotor Kim, C. H.(et al.)
  4. 고려대학교 석사학위 논문집 가압 밀봉된 스퀴즈 필름 댐퍼로 지지된 로터의 동특성 연구 최상호
  5. J. of Non-Newtonian Fluid Mechanics v.8 The Electro-rheological Effect and it Possible Uses Shulman, J. P.;Gordkin, R. G.;Korobko, E. V.;Gleb, V. K.
  6. IEEE Trans. on Electrical Insulation v.24 no.5 Electro-rheology 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 Tribology 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 소폭 전기유변 스퀴즈 필름 댐퍼에 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. 축 진동 감쇠 장치 김창호;이용복;정시영
  13. Asia-Pacific Vibration Conference '99 Test Results for Vibration Control of an Overhung Flexible Rotor Supported by a Discharge Free Slot Electro-rheological Squeeze Film Damper Lee, Yong-Bok;Lee, Nam-Soo;Kim, Chang-Ho;Jung, Si-Young
  14. International Conference on the Integration of Dynamics, Monitoring and Control Test Results for Vibration Control of an Overhung Rigid Rotor Supported by a Sealed and Electro-rheological Fluid Squeeze Film Damper Kim, C. H.(et al.)
  15. 한국소음진동공학회지 v.6 no.5 IV방법을 이용한 잡음이 포함된 베어링 실험 장치의 동특성 파라미터 추출 이용복;김창호;최동훈