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Volume 38 Issue 10
Oct.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(10): 1321-1325.
Yan De, Yang Chao, Xiao Zhipenget al. Balanced external gust loads computation and analysis for elastic aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1321-1325. (in Chinese)
Citation: Yan De, Yang Chao, Xiao Zhipenget al. Balanced external gust loads computation and analysis for elastic aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1321-1325. (in Chinese)
shu

Balanced external gust loads computation and analysis for elastic aircraft

  • 1.

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

  • 2. Beijing Aeronautical Science & Technology Research Institute, Beijing 100083, China

  • Received Date: 19 Apr 2012
  • Publish Date: 30 Oct 2012
    Abstract
  • Continuous turbulence is one of gust models for gust loads analysis needed in various aviation regulations. But there exit some difficulties when the loads induced by continuous turbulence applied to aircraft structural design. Based on stationary random process assumption, utilizing power spectral density (PSD) method and von Karman continuous turbulence model, external gust loads were obtained by using force summation method. An approach was presented by introducing correlations and multiple sets of external load distributions due to continuous turbulence was generated. The results from an elastic aircraft encountering vertical continuous turbulence demonstrate that the external gust load distributions are strictly in banlance. These load distributions can be applied to structural stress analysis or design when the design conditions are identified through load envelope concept which is frequently applied in maneuvering flight loads analysis.

     

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