Volume 37 Issue 1
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HAO Wang, WANG Zhanxue, ZHANG Xiaobo, ZHOU Li, WANG Jingkai. Ground starting modeling and control law design method of variable cycle engine[J]. Journal of Aerospace Power, 2022, 37(1): 152-164. doi: 10.13224/j.cnki.jasp.20210132
Citation: HAO Wang, WANG Zhanxue, ZHANG Xiaobo, ZHOU Li, WANG Jingkai. Ground starting modeling and control law design method of variable cycle engine[J]. Journal of Aerospace Power, 2022, 37(1): 152-164. doi: 10.13224/j.cnki.jasp.20210132
shu

Ground starting modeling and control law design method of variable cycle engine

doi: 10.13224/j.cnki.jasp.20210132
  • 1.

    Shaanxi Key Laboratory of Internal Aerodynamics in Aero-Engine， School of Power and Energy，Northwestern Polytechnical University，Xi'an 710129，China

  • 2.

    Shenyang Engine Research Institute， Aero Engine Corporation of China，Shenyang 110015，China

  • Received Date: 2021-04-02
  • Publish Date: 2022-01-28
    Abstract
  • To solve the problem of discontinuous isentropic efficiency of rotating components，a method of using correct torque instead of isentropic efficiency was proposed.The extrapolation method of low speed characteristics of rotating components was given，and the full speed characteristics of rotating components were obtained.A burner stability model considering ignition and burn stability was proposed.Finally，a component-level starting model of the variable cycle engine was established.Considering the eight variable parameters of the variable cycle engine，the differential evolution algorithm was used to optimize the starting process of the variable cycle engine in the double bypass and single bypass modes.The results showed that the starting time of the variable cycle engine in the double bypass and single bypass modes was 17.2 s and 12.8 s，respectively.In the double bypass mode，the fuel flow，nozzle throat area and outer bypass area of rear variable area bypass injector need to be adjusted.In the single bypass mode，the fuel flow，nozzle throat area and low pressure turbine inlet guide vane area need to be adjusted.When the free stream Mach number was equal to 0.04，the starting time of the variable cycle engine in the double bypass and single bypass modes was 0.2 s less than the static state.

     

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