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Applicability and reliability of an experimental method measuring underwater acoustic radiation efficiency of floating box-type plate structures in a reverberant water tank
被引：4
|作者：
Lee, Joo-Yeob
[1
]
Kim, Kookhyun
[2
]
Park, Sung-Ju
[2
]
Cho, Dae-Seung
[1
,3
]
机构：
[1] Pusan Natl Univ, Dept Naval Architecture & Ocean Engn, Busan, South Korea
[2] Tongmyong Univ, Dept Marine Mobil, Busan, South Korea
[3] Pusan Natl Univ, Global Core Res Ctr Ships & Offshore Plants GCRC S, Busan, South Korea
关键词：
Underwater acoustic radiation efficiency;
Experimental method;
Reverberant water tank;
Floating plate structure;
Numerical validation;
D O I：
10.1016/j.ijnaoe.2023.100553
中图分类号：
U6 [水路运输];
P75 [海洋工程];
学科分类号：
0814 ;
081505 ;
0824 ;
082401 ;
摘要：
This paper aims to investigate the applicability and reliability of an experimental method measuring the underwater acoustic radiation efficiencies of floating plate structures in a reverberant water tank. For the purpose, an experimental method for estimating the acoustic power of a source in a reverberant sound field has been introduced and applied to measure the acoustic radiation efficiencies of two floating boxtype plate structures excited by a logarithmic sine sweeping force in a water tank. The validity of the adopted experimental method has been examined by the comparison with numerical results obtained by a fully coupled vibroacoustic analysis with an infinite radiation boundary condition for the structures. From the results, it is confirmed that the experimental method for measuring the underwater acoustic radiation efficiency of floating plate structures in a reverberant water tank is reliably applicable for highfrequency ranges above the Schroeder frequency of the water tank. (c) 2023 Society of Naval Architects of Korea. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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页数：12
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