Design and Simulation Analysis of Sound Absorption Structure for Acoustic Detection-Based Underwater Gliders

The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of radiation noise of underwater gliders. Firstly,...

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Bibliographic Details
Published in水下无人系统学报 Vol. 32; no. 6; pp. 980 - 988
Main Authors Donghai ZENG, Xinyu WU, Chang YUAN, Yuxuan PENG, Jianxing ZHANG, Baoren LI
Format Journal Article
LanguageChinese
Published Science Press (China) 01.12.2024
Subjects
microperforated panel
porous material
radiation noise
sound absorption
underwater glider
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Summary:The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of radiation noise of underwater gliders. Firstly, the theoretical models of different sound absorption structures were established, and according to the sound absorption theories of microperforated panel and porous materials, the composite sound absorption structure for reducing the radiation noise of underwater gliders was proposed, and the simulation analysis of the composite sound absorption structure was carried out by using Comsol software for guiding the design of the composite sound absorption structure. The simulation results show that the composite sound absorption structure of porous material layer-air cavity-microperforated panel-parallel air cavity has the best performance in the range of 0–2 000 Hz, and its average sound absorption coefficient is 0.66
ISSN:2096-3920
DOI:10.11993/j.issn.2096-3920.2024-0092