Volume 35 Issue 11
Nov.  2009
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Ma Yunpeng, Lü Mingyun, Wu Zhe, et al. Simulation of near-space airship based on wrinkle during ascent[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(11): 1298-1301. (in Chinese)
Citation: Ma Yunpeng, Lü Mingyun, Wu Zhe, et al. Simulation of near-space airship based on wrinkle during ascent[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(11): 1298-1301. (in Chinese)

Simulation of near-space airship based on wrinkle during ascent

  • Received Date: 15 May 2009
  • Publish Date: 30 Nov 2009
  • The material of the near-space airship film is nonlinear,anisotropic,viscoelastic and incompressible.Wrinkling will be present as the airship rises and inflates in the atmosphere.The expanding wrinkles can influence stress and strain of the film.Meanwhile,it can change dynamic action and thermodynamic distributing of film in the space environment.The principal stress-principal strain criterion for predicting the wrinkle states and the constitutive matrix equation with modified wrinkle unit were used to analyse wrinkle areas.The simulation result of the new method is more conform with the testing value through the test on the ground.An effective analysis method is provided for the design of the stratospheric balloon and near-space airship.

     

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