3D wing flutter analysis by bending-torsion beam model and unstructured CFD

Autor:	Machida, Kentaro, Miyaji, Koji
Jazyk:	japonština
Rok vydání:	2006
Předmět:	AGARD 445.6 model 後退翼 numerical analysis flutter analysis 数値解析 bending-torsion beam model 翼振動 計算流体力学 AGARD445.6模型 圧力分布 computational fluid dynamics 非構造CFD 残差切除法 sweptback wing pressure distribution torsional vibration wing oscillation 捩り振動 曲げ-捩り梁モデル unstructured CFD residual cutting method フラッタ解析
Zdroj:	宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2005論文集 = JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2005. :94-99
ISSN:	1349-113X
Popis:	A 3D flutter of a sweptback wing is numerically investigated by coupling inviscid flow simulations with a bending-torsion beam structure model. The beam model of a 3D wing is a natural extension of a widely used 2D 2-degree-of-freedom structure model and it considerably simplifies the structure analysis. Finite-volume unstructured CFD is used with the aim of applying various configurations in the future. The grid is dynamically deformed in accordance with the wing motion. A truss-analogy is applied to determine the new positions of interior points when the displacements of boundary points are specified. A well-known experiment using the AGARD standard aeroelastic configuration called 445.6 wing is selected for the validation. The developed methods successfully simulated the experimental flutter boundary. 資料番号: AA0049212015 レポート番号: JAXA-SP-05-017
Databáze:	OpenAIRE
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