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Studies on the influence of spar position on aeroelastic optimization of a large aircraft wing

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Abstract

Aeroelastic problems are encountered at the preliminary design stage of flexible wings for large aircraft. A three-dimensional finite element model of a high-aspect-ratio wing was built, and the influence of the front and rear spar positions on the results of the aeroelastic analysis and optimization was studied to improve the wing structure desgin. The most feasible and optimal solutions were effectively obtained by aeroelastic optimization. In particular, the position parameter of the front spar has a greater influence on the aeroelastic analysis and optimization than the rear spar. In addition, some key constraints became restrictive leading to a rapid increase in the structural weight. Therefore, reasonable constraints were necessary for the oprimization of results.

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Authors and Affiliations

  1. School of Aeronautic Science and Engineering, Beihang University, Beijing, 100191, China

    ZhiQiang Wan, DongYue Liu, ChangHong Tang & Chao Yang

Authors
  1. ZhiQiang Wan
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  2. DongYue Liu
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  3. ChangHong Tang
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  4. Chao Yang
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Correspondence to DongYue Liu.

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Wan, Z., Liu, D., Tang, C. et al. Studies on the influence of spar position on aeroelastic optimization of a large aircraft wing. Sci. China Technol. Sci. 55, 117–124 (2012). https://doi.org/10.1007/s11431-011-4584-9

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  • DOI: https://doi.org/10.1007/s11431-011-4584-9

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