Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Research Center of Computational Mechanics
Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
JAXA Special Publication: Proceedings of 42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010
巻
JAXA-SP-10-012
発行年
2011-02-28
会議概要（会議名, 開催地, 会期, 主催者等）
第42回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2010 (2010年6月24日-25日. 米子コンベンションセンター BiG SHiP)
会議概要（会議名, 開催地, 会期, 主催者等）（英）
42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010 (June 24-25, 2010. Yonago Convention Center BiG SHiP), Yonago, Tottori Japan
抄録（英）
Numerical prediction and analysis of the acoustic environment inside of the payload fairing is of crucial importance. The authors have focused on the application of the Wave Based Method (WBM), which is a novel deterministic approach and which has been proposed for numerical predictions up to the mid-frequency range. However, the WBM is only capable of solving models with moderate geometrical complexity for the high computational efficiency. In order to overcome this issue, the hybrid Finite Element-Wave Based approaches have also been proposed. The hybrid approaches combine the advantages of both the WBM and the conventional Finite Element Method (FEM), that is, the high convergence properties of the WBM and no geometrical complexity limitations of the FEM. In this paper, a simple sound transmission model with a structural plate between two anechoic rooms (a source room and a receiving room) is considered, and numerical sound transmission predictions are performed using the 3-dimensional hybrid WB-FE models.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
ハイブリッド有限要素-波動ベース法に基づいた音響構造連成解析による音響透過予測
64967004.pdf
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