Results 1 to 10 of about 1,533 (215)

Recent study progress of underwater sound absorption coating

Engineering Reports, 2023
Based on the recent development of underwater sound absorption coatings, this paper analyzes the evolution of underwater sound absorption coatings from two aspects: traditional structures and metamaterials.
Zhicheng Zhang, Yanbiao Zhao, Nansha Gao
doaj   +4 more sources

Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO₂ Coatings [PDF]

Biomimetics, 2022
Any surface immersed in sea water will suffer from marine fouling, including underwater sound absorption coatings. Traditional underwater sound absorption coatings rely heavily on the use of toxic, biocide-containing paints to combat biofouling.
Pan Cao, Huming Wang, Mingyi Zhu, Yifeng Fu, Chengqing Yuan   +4 more
doaj   +5 more sources

Multifunctional Integrated Underwater Sound Absorption Materials: A Review

Applied Sciences, 2023
Rapid improvements in underwater vehicle technology have led to a significant increase in the demand for underwater sound absorption materials. These materials, unlike their counterparts utilized in air, must have high hydrostatic pressure resistance ...
Xianmei Chen, Lei Meng, Zibo Liu, Feiran Yang, Xin Jiang, Jun Yang   +5 more
doaj   +6 more sources

A review on polymer-based materials for underwater sound absorption

Polymer Testing, 2021
Greater demands for underwater sound absorption materials have been growing due to the concern about underwater noise control in water. Among the range of existing materials, polymer-based materials are increasingly being utilized as underwater sound ...
Yifeng Fu, Imrana I. Kabir, Guan Heng Yeoh, Zhongxiao Peng   +3 more
doaj   +4 more sources

Numerical design and optimization of metamaterials for underwater sound absorption at various hydrostatic pressures

Journal of Low Frequency Noise, Vibration and Active Control, 2023
Underwater sound absorption materials with a stable performance at various hydrostatic pressures are important for marine applications. However, most studies about underwater sound absorption materials only focused on the performance at atmospheric ...
Yifeng Fu, Huming Wang, Pan Cao
doaj   +2 more sources

Grating‐like anechoic layer for broadband underwater sound absorption

International Journal of Mechanical System Dynamics, 2022
To address the challenging task of effective sound absorption in the low and broad frequency band for underwater structures, we propose a novel grating‐like anechoic layer by filling rubber blocks and an air backing layer into metallic grating.
Chenlei Yu, Mingyu Duan, Wei He, Xin Chen, Fengxian Xin, Tian J. Lu   +5 more
doaj   +2 more sources

Gradient index metamaterials for broadband underwater sound absorption

APL Materials
The underwater broadband anechoic coating is highly demanded in acoustic stealth for underwater vehicles. In this work, we propose a gradient index metamaterial for broadband underwater sound absorption, which is further experimentally validated under ...
Xiao Pan, Xinsheng Fang, Xuewen Yin, Yan Li, Yongdong Pan, Yabin Jin   +5 more
doaj   +2 more sources

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection [PDF]

Advanced Science
To resolve acoustic‐mechanical conflicts and integrate research gaps in underwater coatings. Inspired by the biomechanics of jumping spiders and human bones, we design an underwater composite structure subject to hydrostatic pressure. Based on mechanisms
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
doaj   +2 more sources

Physical Bounds on Underwater Sound Absorption by Coatings

Acoustics
The development of sound-absorbing coatings for underwater structures has attracted significant attention due to their critical role in stealth and noise mitigation.
James McDaniel, Gerson Amaya, Lisa Dangora, Elizabeth Magliula   +3 more
doaj   +2 more sources

On-demand prediction of low-frequency average sound absorption coefficient of underwater coating using machine learning

Results in Engineering
This study proposes an underwater coating with sound absorption ability in the middle-to-low frequency range and establishes an acoustic theoretical model combining the equivalent medium theory and the transfer matrix method.
Nansha Gao, Mou Wang, Xiao Liang, Guang Pan   +3 more
doaj   +3 more sources