Japan Aerospace Exploration Agency(JAXA)
Japan Aerospace Exploration Agency(JAXA)
Japan Aerospace Exploration Agency(JAXA)
出版者
日本機械学会
雑誌名
日本機械学會論文集 C編
巻
79
号
808
ページ
4880 - 4889
発行年
2013-12
抄録（英）
In spacecraft development, acoustically induced vibration of spacecraft equipment panel is one of the criticaldesign consideration. The prediction of the vibroacoustics is necessary to specify the environment during spacecraftlaunch. Joint acceptance which is based on the integral calculus with the mode shape has been proposed for theprediction method by the authors. However, the prediction accuracy of the approach is poor for the complex structure inhigh frequency because of the uncertainty in the mathematical model. This paper is concerned with the approach usingsimplified joint acceptance employing radiation efficiency and spacecraft panel mass, not based on the integral calculus.The approach is applied to diffuse acoustical excitation of spacecraft panel, and is compared with the results of acousticexcitation test, conventional approach of joint acceptance and SEA. It is shown that the result provide good predictionsin high frequency.
音響放射効率とパネル質量を用いたジョイントアクセプタンスの簡易式による宇宙機構体パネルの音響振動解析
PA1410060.pdf
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