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Volume 38 Issue 5
May  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(5): 688-691,696.
Xiao Zhiyuan, Li Zhengneng. Parameters estimation method of radial transformable airship[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(5): 688-691,696. (in Chinese)
Citation: Xiao Zhiyuan, Li Zhengneng. Parameters estimation method of radial transformable airship[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(5): 688-691,696. (in Chinese)
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Parameters estimation method of radial transformable airship

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 07 Mar 2012
  • Publish Date: 30 May 2012
    Abstract
  • To break the crucial technical difficulties of controllable aerostat in near space, and make it possible of controlling aerostat going and returning between ground and near space, the conception of solar powered radial transformable airship was raised, and it-s parameters estimation method was given. The method was based on Archimedes theory and Li-style transformable airship theory. The self-adapting and controllable-transformation of sectional area was actualized by radial transformation of structure, net lift was changed by controlling the volume of airship. Controllable aerodynamic configuration was consistently kept through the change of volume ,thereby the controls for ascending, descending and staying of airship were actualized. Size of inside ballonet and outside ballonet were accounted by designing transformation project, length of airship was accounted by analyzing dynamics balance and energy balance. Based on study out design parameter, an overall design project for solar powered radial transformable airship was given, feasibility and practicality of the method was validated by example.

     

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