An efficient oil film damper known as porous squeeze film damper (PSFD) is developed based on conventional squeeze film damper (SFD) for more effective and reliable rotor vibration control and especially for improving the blade loss dynamics for rotor support system. The permeability of the outer race of PSFD could remarkably improve the squeeze film damping properties. The transient response of a simple rigid rotor and flexible Jeffcott’s rotor supported on PSFD and SFD subjected to sudden unbalance of blade loss are investigated. Time transient simulation show that PSFD could operate effectively under much greater unbalance as compared with SFD, especially under relative large impact loading of blade loss. Furthermore, the effective eccentricities of PSFD with small transmissibilities (T<1.0) extend to a range of ε<0.9, and optimum film stiffness and damping distribution within the whole film clearance could be achieved.
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July 1992
Research Papers
Development of Porous Squeeze Film Damper Bearings for Improving the Blade Loss Dynamics of Rotor-Support Systems
Shiping Zhang,
Shiping Zhang
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
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Litang Yan,
Litang Yan
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
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Qihan Li
Qihan Li
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Search for other works by this author on:
Shiping Zhang
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Litang Yan
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Qihan Li
Jet Propulsion Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
J. Vib. Acoust. Jul 1992, 114(3): 347-353 (7 pages)
Published Online: July 1, 1992
Article history
Received:
April 1, 1990
Online:
June 17, 2008
Citation
Zhang, S., Yan, L., and Li, Q. (July 1, 1992). "Development of Porous Squeeze Film Damper Bearings for Improving the Blade Loss Dynamics of Rotor-Support Systems." ASME. J. Vib. Acoust. July 1992; 114(3): 347–353. https://doi.org/10.1115/1.2930268
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