A method for flutter of the very flexible wing with high-aspect-ratio based on curve beam model

Jingbo Duan, Zhou Zhou, Tao Jiang

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

A method for flutter of the very flexible wing with a high-aspect-ratio is developed. Firstly, the very flexible wing subjected to aeroelastic load will undergo a large deformation. So the deformed wing can be regarded as a curve beam and divided into a couple of curve beam elements. The mean curvature of every beam element is obtained by mean of polynomial interpolation method. For each element, the flutter differential equations is established by combining the differential equations of the constant curvature beam vibration and the Therdorson' unsteady aerodynamics model. Then, using the distributed transfer function method and the finite element method, the equilibrium equations of the whole wing are obtained. Finally, the wing flutter was carried out by solving a eigenvalue problem. The results are good agreement to the literature solutions and indicate that the present method is accurate and efficient.

源语言英语
页(从-至)774-782
页数9
期刊Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
34
5
出版状态已出版 - 1 10月 2016

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