EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT

Li Qihan; Zhao Fuan; Zhang Shiping

Volume 7 Issue 2

Apr. 1992

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Li Qihan, Zhao Fuan, Zhang Shiping. EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT[J]. Journal of Aerospace Power, 1992, 7(2): 103-107,191.

Citation:

Li Qihan, Zhao Fuan, Zhang Shiping. EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT[J]. Journal of Aerospace Power, 1992, 7(2): 103-107,191.

Li Qihan, Zhao Fuan, Zhang Shiping. EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT[J]. Journal of Aerospace Power, 1992, 7(2): 103-107,191.

Citation:

Li Qihan, Zhao Fuan, Zhang Shiping. EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT[J]. Journal of Aerospace Power, 1992, 7(2): 103-107,191.

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EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT

Beijing University of Aeronautics & Astronautics,Beijing 100083

Received Date: 1991-01-01
Publish Date: 1992-04-28

Abstract

Abstract

A rotor system with flexible damped support has been investigated experimentally under the conditions of simulated blade loss.Some results of the transient response dynamics are presented.Experiments under different sudden unbalances applied to the rotor system with various Squeeze Film Damper (SFD) film clearances were performed at different rotational speeds.The instability conditions characterized by limiting circle orbits for large amplitude at damper location can be determined,and some particular phenomena caused by nonlinearity of the rotor system such as lock up,bistable jump and subharmonic etc.have been observed.The effectiveness and the capability of SFD for suppressing instability of the rotor system are analyzed.