@inproceedings{oai:jaxa.repo.nii.ac.jp:00005626,
 author = {高橋, 孝 and 村上, 桂一 and 青山, 剛史 and 相曽, 秀昭 and Takahashi, Takashi and Murakami, Keiichi and Aoyama, Takashi and Aiso, Hideaki},
 book = {宇宙航空研究開発機構特別資料: 第39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2007論文集, JAXA Special Publication: Proceedings of 39th Fluid Dynamics Conference/Aerospace Numerical Simulation Symposium 2007},
 month = {Feb},
 note = {This paper focuses on numerical prediction approaches for steady-state coupled interior vibro-acoustic problems, especially for spacecraft structural vibrations by acoustic loads with the wide frequency range acted during the liftoff. Lightweight and large area structures, such as solar arrays and antenna dishes, and some components with relatively high natural frequencies are sensitive to acoustic loads. Numerical prediction of vibro-acoustic responses enables us to partially cover the ground acoustic tests, and is therefore quite important to design and develop reliable spacecraft. For spacecraft vibro-acoustic simulations, there are deterministic prediction techniques such as Finite Element Method (FEM) and Boundary Element Method (BEM) applicable in the low frequency range, and statistical ones such as Statistical Energy Analysis (SEA) in the high frequency range. However, there generally exists mid-frequency range where no mature numerical methods are applicable. In this paper, a novel deterministic prediction method called the Wave Based Method (WBM) is applied to obtain detailed responses in vibro-acoustic analysis of spacecraft. Then we consider two simple models, an uncoupled acoustic model with a single cavity, and a coupled vibro-acoustic model with a spacecraft and a payload fairing. Using a two-dimensional WBM code developed in this study and commercial FEM software, these models are solved to compare the results. The results show that FEM is limited to apply in low frequency range, and WBM is quite practical and has high potential for the vibro-acoustic analysis with the wide frequency range., 資料番号: AA0063742020, レポート番号: JAXA-SP-07-016},
 pages = {125--130},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {搭載宇宙機の音響構造連成解析手法に関する研究},
 volume = {JAXA-SP-07-016},
 year = {2008}
}