Volume 25 Issue 4
Apr.  1999
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Li Yunhua, Wang Zhanlin, . Theoretical Analysis for Squeeze Film Damper withElectrohydraulic Active Control[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 422-425. (in Chinese)
Citation: Li Yunhua, Wang Zhanlin, . Theoretical Analysis for Squeeze Film Damper withElectrohydraulic Active Control[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 422-425. (in Chinese)

Theoretical Analysis for Squeeze Film Damper withElectrohydraulic Active Control

  • Received Date: 07 May 1998
  • Publish Date: 30 Apr 1999
  • Aiming at the problems existed in rotating machinery using traditional squeeze film damper combined with dynamic pressure bearing, a project of the hybrid oil film bearing composed of dynamic pressure and static pressure with piezoelectric crystal electrohydraulic active control supply orifice hole, i.e., electrohydraulic squeeze film damper(HSFD), is proposed. For this kind electrohydraulic squeeze film damper, the classical Sommerfeld assumption is not held. In order to solve its pressure distribution, a solution method applied to solve the Reynolds equation with hybrid action of static pressure and dynamic pressure is proposed. Based on this, the theoretical analysis for the rotor system to utilizing electrohydraulic squeeze film damper is carried out, on of the theoretical analysis of pressure distribution of this kind of electrohydraulic squeeze film damper is carried out, so the foundation to realize active control is established.

     

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  • 1. Zhao J Y ,Hahn E J. Subharmonic, quasi-periodic and chaotic motions of a rigid rotor supported by an eccentric squeeze film damper. Journal of Mech Engrs, 1993, 207(C3):383~392 2. Choi S K, Noah S T. Mode-locking and chaos in a Jeffcott rotor with bearing clearance. Journal of Applied Mechanics, 1994, 61(1):131~138 3. Hahn E J. Pressure distribution in squeeze film dampers with oil hole feed. Proc I Mech E, 1991, 208(J1):105~109 4. Adams M L. Attenuation of rotor vibration using controlled pressure hydrostatic squeeze film dampers. In:Hahn E J,ed. Proc 11th Biennial Conference on Mech Vibration & Noise. Boston:University of Boston,1987. 99~108 5. Levesley M C. The efficient computation of the vibration response of an aero-engine rotor-damper assembly. Proc I Mech E,1994, 208(G1):41~61 6. Krodkiewski J M. Improvement of stability of rotor system by introducing a hydraulic damper into an active journal bearing. International Journal of Rotating Machinery, 1997, 3(1):45~52 7. Pecheux B. Investigation about electrorheological squeeze film damper applied to active control of rotor dynamic. International Journal of Rotating Machinery,1997, 3(1):53~60 8. 晏砺堂,朱梓根,李其汉,等. 高速旋转机械振动 北京:国防工业出版社,1994 113~174 9. 祝长生 非线性挤压油膜阻尼器柔性转子系统中的周期分叉特性 振动工程学报,1997,10(3):343~349
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