Volume 35 Issue 1
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BAI Jie, LIU Shuai, WANG Wei. Identification method for parameter uncertain model of aero-engine[J]. Journal of Aerospace Power, 2020, 35(1): 178-184. doi: 10.13224/j.cnki.jasp.2020.01.021
Citation: BAI Jie, LIU Shuai, WANG Wei. Identification method for parameter uncertain model of aero-engine[J]. Journal of Aerospace Power, 2020, 35(1): 178-184. doi: 10.13224/j.cnki.jasp.2020.01.021

Identification method for parameter uncertain model of aero-engine

doi: 10.13224/j.cnki.jasp.2020.01.021
  • Received Date: 2019-06-11
  • Publish Date: 2020-01-28
  • The linear model of aero-engine is effective within a small application range. According to this problem, the identification method for parameter uncertainty model of aero-engine was proposed. The identification problem was solved by calculating nonlinear programming. The parameter uncertainty was considered in the identification method for an uncertainty model of aero-engine. A parameter uncertainty model of aero-engine with large range of application can be obtained. This method was used for DGEN380 aero-engine. Two parameters, the deviation parameter of actual working conditions and the maximum deviation parameter of model, were defined for describing error range. Compared with experimental data, the uncertainty model of DGEN 380 can simulate the real state of DGEN380 within 1% error range when the variation of the power lever angle was less than 22%.

     

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