Volume 32 Issue 3
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Modeling simulation and optimization of oil system based on MATLAB/Simulink[J]. Journal of Aerospace Power, 2017, 32(3): 740-748. doi: 10.13224/j.cnki.jasp.2017.03.028
Citation: Modeling simulation and optimization of oil system based on MATLAB/Simulink[J]. Journal of Aerospace Power, 2017, 32(3): 740-748. doi: 10.13224/j.cnki.jasp.2017.03.028
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Modeling simulation and optimization of oil system based on MATLAB/Simulink

doi: 10.13224/j.cnki.jasp.2017.03.028
  • Received Date: 2015-07-18
  • Publish Date: 2017-03-28
    Abstract
  • In order to analyze the oil systems characteristics and study the coperative working and design problems involving aero-engine, a general simulation block library for its components was developed in MATLAB/Simulink based on flow rate, pressure and heat transfer characteristics. Then a full-system simulation model was established, including supply, return， air and thermal system. Taking a certain turbofan engine and its oil system as example, the main working parameters of the oil system were calculated under high temperature taking off condition. Compared with the calculated values of Flowmaster model, the relative error was less than 3.8%. Through the extension ability of the full-system simulation model, a co-simulation with GasTurb engine model was successfully implemented and the oil systems design parameters were optimized through genetic algorithm. The highest temperature of return oil decreased by 4.12% by changing the oil supply ratio. This method can provided a reference for oil system design and improvement.

     

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