Applicability and reliability of an experimental method measuring underwater acoustic radiation efficiency of floating box-type plate structures in a reverberant water tank

IF 2.3 3区工程技术 Q2 ENGINEERING, MARINE International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI:10.1016/j.ijnaoe.2023.100553

Joo-Yeob Lee , Kookhyun Kim , Sung-Ju Park , Dae-Seung Cho

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Abstract

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 box-type 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 high-frequency ranges above the Schroeder frequency of the water tank.

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一种测量浮动箱型板结构水声辐射效率的实验方法的适用性和可靠性

本文旨在研究测量混响水箱中浮板结构水下声辐射效率的实验方法的适用性和可靠性。为此，介绍了一种估算混响声场中声源声功率的实验方法，并将其应用于测量水箱中两个浮箱式板结构在对数正弦扫掠力激励下的声辐射效率。通过与具有无限辐射边界条件的结构全耦合振动声分析的数值结果的比较，验证了所采用的实验方法的有效性。从结果中可以证实，测量混响水箱中浮板结构的水声辐射效率的实验方法可靠地适用于高于水箱Schroeder频率的高频范围。

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来源期刊

International Journal of Naval Architecture and Ocean Engineering ENGINEERING, MARINE-

CiteScore

4.90

自引率

4.50%

发文量

审稿时长

12 months

期刊介绍： International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.