積層パラメータを用いた複合材板翼の空力弾性特性最適化に関する研究(第1報) : 複合材板翼のフラッタ・ダイバージェンス特性

概要

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The present paper treats the flutter and divergence characteristics of composite plate wings with various sweep angles. In the first report of this paper, the effect of laminate configuration on the flutter and divergence characteristics is investigated for composite plate wings. Aeroelastic analysis of composite plates is based on the finite element method and the subsonic unsteady lifting surface theory. To examine the effect of laminate configuration, the flutter and divergence characteristics are represented on the lamination parameter plane, instead of using the composite fiber angle or the non-dimensional cross-coupling parameter. The representation gives a comprehensive explanation of the effects of principal-axis stiffness and bending-torsional coupling on the flutter and divergence characteristics.
社団法人日本航空宇宙学会の論文
2003-08-05