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Volume 26 Issue 3
Mar.  2000
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Journal of Beijing University of Aeronautics and Astronautics  > 2000  >  26(3): 344-347.
XIE Yong-he, WU Wen-zheng. Structure Optimization Design Study of Fuselage Main Frame[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(3): 344-347. (in Chinese)
Citation: XIE Yong-he, WU Wen-zheng. Structure Optimization Design Study of Fuselage Main Frame[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(3): 344-347. (in Chinese)
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Structure Optimization Design Study of Fuselage Main Frame

  • 1.

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

  • 2. Beijing University of Aeronautics and Astronautics, Research Institute of Unmanned Flight Vehicle Design

  • Received Date: 07 May 1999
  • Publish Date: 31 Mar 2000
    Abstract
  • The method of optimization theory based on dual method was transplanted to design fuselage main frame, and the optimizing model of fuselage main frame was established. The target function is the weight of fuselage main frame. There are three kinds of constraints: dimension, strength and flexural rigidity constraint. The program(SAAOP) based on optimization theory was designed. The numerical results show that the structural strength after fuselage main frame was optimized is fit, all so the flexural rigidity of wing juncture. So this program can be used to design the main strength frame of large-scale leptodermous fuselage in predesign.

     

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    • References(1)
  • [1] 杨玉祥.平面刚架结构优化设计的一种新途径 ．北京:北京航空学院飞行器设计与应用力学系,1986. [2]谢永河.飞机机身结构评估系统和优化设计研究 .北京:北京航空航天大学飞行器设计与应用力学系,1997. [3]Schmi L A,Chang K J. Optimum design sensitivity based on approximation concepts and dual methods[J]． International Journal For Numerical Methods In Engineering,1984,20:39~75.
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