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Volume 30 Issue 09
Sep.  2004
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Journal of Beijing University of Aeronautics and Astronautics  > 2004  >  30(09): 905-908.
Liu Hu, Lu Xinlai, Wang Liang, et al. Center of gravity estimation in an object oriented aircraft conceptual design system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(09): 905-908. (in Chinese)
Citation: Liu Hu, Lu Xinlai, Wang Liang, et al. Center of gravity estimation in an object oriented aircraft conceptual design system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(09): 905-908. (in Chinese)
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Center of gravity estimation in an object oriented aircraft conceptual design system

  • 1.

    School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2. School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 26 Jun 2003
  • Publish Date: 30 Sep 2004
    Abstract
  • In order to evaluate such characteristics as weight and static stability of proposed concepts effectively and conveniently during aircraft conceptual design, the implementation of center of gravity and associated weight estimation in an computer aided aircraft conceptual design system, whose data organization is object oriented, was studied. The emphases were placed on the object oriented structure of center of gravity estimation and methods adopted in this part, especially the methods of estimating center of gravities of fuel and landing gear based on the design and modeling of relevant components. Through conducting weight and center of gravity estimation during the process of dynamic adjustment of concepts, the adaptability and reliability of this part, as well as the flexibility of designers’ interactive controls on estimation, were validated.

     

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  • [1] Raymer D P. Aircraft design:a conceptual approach [M]. 3rd Edition. Reston:AIAA Inc, 1999 [2] Nicolai L M. 飞机设计基本原理[M]. 赵先宁 译. 台北:徐氏基金会, 1983 Nicolai L M. Fundamentals of aircraft design[M]. Translated by Zhao Xianning. Taibei:Xu’s Foundation, 1983(in Chinese) [3] Chai S, Crisafulli P, Mason W H. Aircraft center of gravity estimation in conceptual/preliminary design . AIAA 95-3882, 1995 [4]Kaul R W, Rokhsaz K. A comparative analysis of the Boeing 727-100 using three advanced design methodologies . AIAA 96-5518, 1996 [5] 顾诵芬. 飞机总体设计[M]. 北京:北京航空航天大学出版社, 2001 Gu Songfen. Aircraft conceptual/preliminary design[M]. Beijing:Beijing University of Aeronautics and Astronautics Press, 2001(in Chinese) [6] Liu Hu, Bai Zhendong, Wu Zhe. Method for estimating geometric characteristics of numerical conceptual aircraft models based on surface elements[J]． Transactions of Nanjing University of Aeronautics & Astronautics, 2003,20(2):140~146
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