Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Analysis, Real Time Simulation and Control of Medium-Scale Commercial Aircraft Turbofan Engine

  • Kong, Chang-Duk (Department of Aerospace Engineering, Chosun University) ;
  • Jayoung Ki (Department of Mechanical Engineering, Chosun University) ;
  • Chung, Suk-Chou (Department of Mechanical Design Engineering, Seoul National Polytechnic University)
  • Published : 2001.06.01
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Abstract

The turbofan engine performance analysis for a medium scale commercial aircraft was carried out and the LQR control scheme for performance optimization was studied. By using scaled component maps from well-known CF6 engine characteristics, the steady-state performance analysis result was compared with BR715-56 engine performance data. The transient performance analysis was performed with four fuel schedules. The linear simulation was done at the maximum take-off condition. The real time linear simulation was performed by interpolation of the system matrices, which used the least square method as the function of LPC rotational speed. By using linear system matrices of design point, the LQR controller which used control variables for the fuel flow and the LPC bleed air was designed.

Keywords

References

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