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Volume 25 Issue 5
May  1999
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Journal of Beijing University of Aeronautics and Astronautics  > 1999  >  25(5): 543-545.
Gai Xiaodong, Yang Shiyan, Lei Lei, et al. Advanced ultra capacitor modeling method and applications[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(2): 172-175. (in Chinese)
Citation: Li Jing, Li Tian, Wu Zheet al. Fuzzy Optimization of the Geometrical Parameters of Fighter Inlet[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(5): 543-545. (in Chinese)
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Fuzzy Optimization of the Geometrical Parameters of Fighter Inlet

  • 1.

    Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics

  • 2. Shenyang Institute of Aircraft

  • Received Date: 13 Apr 1998
  • Publish Date: 31 May 1999
    Abstract
  • For two-dimensional, two-shock, all-external compression, supersonic, cheek-type inlet, the integrated aerodynamic-stealth design of geometrical parameters, such as width, ratio of width and height, angle of vertical compressing ramp, two cutting bevels of the lip plane and lip-position-angle, was investigated by considering those objectives such as the total pressure recovery coefficient, additional drag coefficient of supersonic overflow and the RCS(Radar Cross Section). The formulae for calculating the total pressure recovery coefficient, additional drag coefficient of supersonic overflow were derived. The satisfactory functions of the objectives and the restrictions were given, and then ,based on these functions, the multiobjective fuzzy optimization model was established.

     

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    • References(1)
  • 1. 陈大光,张 津.飞机-发动机性能匹配与优化.北京:北京航空航天大学出版社,1990 2. 赵鹤书.飞机进气道气动原理.北京:国防工业出版社,1989 3. 陈再新.空气动力学.北京:航空工业出版社,1993 4. 克拉特 E F著.雷达散射截面——预估、测量和减缩.阮颖铮 译.北京:电子工业出版社,1988
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