Volume 35 Issue 4
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SU Sanmai, CHEN Yaxin, SUN Zhanheng. Theoretical study on amplitude and frequency of compressor instability[J]. Journal of Aerospace Power, 2020, 35(4): 878-887. doi: 10.13224/j.cnki.jasp.2020.04.021
Citation: SU Sanmai, CHEN Yaxin, SUN Zhanheng. Theoretical study on amplitude and frequency of compressor instability[J]. Journal of Aerospace Power, 2020, 35(4): 878-887. doi: 10.13224/j.cnki.jasp.2020.04.021
shu

Theoretical study on amplitude and frequency of compressor instability

doi: 10.13224/j.cnki.jasp.2020.04.021
  • 1.

    School of Power and Energy,Northwestern Polytechnical University,Xi'an 710072,China

  • 2.

    Shanghai Aircraft Design and Research Institute，,Commercial Aircraft Corporation of China Limited,Shanghai 201210,China

  • 3.

    Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou Hunan,412002,China

  • Received Date: 2019-07-18
  • Publish Date: 2020-04-28
    Abstract
  • In order to accurately describe the amplitude and frequency characteristics of compressor stall and surge during active stability control and health monitoring based on the compressor system model and the configuration of the stall cell, the stall behavior was analyzed by the modal wave theory from the perspective of dynamics. The surging phenomenon was analyzed by the strong nonlinear theory, based on the one-dimensional oscillation characteristics of surge. The theoretical description of the amplitude and frequency of the compressor instability was derived and given in the process of analysis. Simulation results show that, the amplitude and frequency of compressor stall and surge are the functions of the compressor characteristics, flow parameters and structural parameters. In the process of stall, the lower modes order means the easier occurrence and stabilization of amplitude. The higher modes order means the bigger rotation frequency of disturbance. In the process of surge, the smaller coefficient of compressor outlet throttling means the bigger value of the surge amplitude and oscillation frequency.

     

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