Tribology and Lubricants

  • 제15권4호
  • /
  • Pages.304-313
  • /
  • 1999
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  • 2713-8011(pISSN)
  • /
  • 2713-802X(eISSN)
한국트라이볼로지학회 (Korean Tribology Society)
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가압 밀봉된 스퀴즈 필름 댐퍼로 지지된 로터의 동특성 연구

Rotordynamic Characteristics of A Rigid Rotor Supported by A Sealed and Pressurized Squeeze Film Damper

  • 김창호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 이남수 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 최상호 (만도기계(주)) ;
  • 장효환 (고려대학교 기계공학과)
  • 발행 : 1999.12.01
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초록

High-speed rotors set a lot of high vibration and stability problems especially when the speed of rotation is going through the first or the second critical speed. The aim of this paper is to investigate the possibility of an active control of a rigid rotor with squeeze film damper which has a good configuration of easily controlled end seal clearances and/or adjustment of a feed pressure. A theoretical method is presented and some numerical results are compared with test measurements. Both results show that the vibration or bit sizes are decreased when the end seal gap decreases with constant supply pressure, and when the supply oil pressure increases with constant seal gap. The experimental results show also a pleasing similarity on both orbit sizes and their decrement ratio compared with theoretical analysis. The possibility of an active control with the squeeze film damper was verified by adjusting the seal gap and the supply pressure.

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참고문헌

  1. STLE Trans. v.32 Cavitation Leading to a Two Phase Fluid in a Squeeze Film Damper Zeiden, F.;Vance, J.M.
  2. J. of Tribology, Trans. v.112 Cavitation and Air Entranment Effect on the Response of Squeeze Film Supported Rotors Zeiden, F.;Vance,J.M.
  3. Turbomachinery Rotordynamics Childs D.
  4. J. of Lub. Technology Paper No.76-Lub-25 Design of Nonlinear Squeeze-Flim Dampers for Aircraft Engines Gunter, E.J.;Barrett, L.E.;Allaire, P.E.
  5. ASME J. of Eng. for Industry v.96 Design of Squeeze Film Damper Suppodrts for Rigid Rotor Mohan, S.;Hahn, E.J.
  6. ASME J. of Eng. for Industry v.97 Design of a Squeeze Film Damper for Multimass Flexible Rotor Cunningham R.E.;Fleming, D.P.;Gunter, E.J.
  7. NASA CR-2548 Steady-State and Transient Analysis of a Squeeze Film Damper Bearing for Rotor Stability Barrett, L.E.;Gunter, E.J.
  8. ASME Paper No. 77-DET-25 Experimental and Analytical Investigation of Squeeze Film Bearing Damper Forces Induced by Offset Circular Whirl Orbits Bansal, P.N.;Hibner, D.H.
  9. NASA Conference Publication 3122 Measurements of Pressure Distributions and Force Coefficients in a Squeeze Film Damper part l;Fully Open Ended Configuration Jung S. Y.;Sna Andes L. A.;Vance J. M.
  10. NASA Conference Publucation 3122 Measurements of Pressure Distribution and Force Coefficients in a Squeeze Film Damperpart II; Partially Sealed Configuration Jung, S.Y.;San Andes L.A.;Vance J.M.
  11. Journal of Tribology;Transactions of the ASME v.107 The Damping Capacity of a Sealed Squeze Film Bearings Dogan M;Holmes R
  12. Proc. 3rd Asia-Pacific Vibration Conference Vibration Orbits of Sealed and End-Chambered Squeeze Film Supported Rotors Kim, C.H.;Holmes, R.