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Methods of Manipulation of Acoustic Radiation Using Metamaterials with a Focus on Polymers: Design and Mechanism Insights. [PDF]
Polymers (Basel)Deng Q, Du T, Gomaa H, Cheng Y, An C.
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Exploring oceanic depths: unveiling hidden treasures with IoT and ensembled deep hybrid learning model. [PDF]
Sci RepTada S, Jeevanantham V.
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Experimental investigation of composite metamaterial for underwater sound absorption
Applied Acoustics, 2023Nan-Sha Gao
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Underwater sound absorption characteristics of metamaterials with steel plate backing
Applied Acoustics, 2019Abstract Generally, the better sound absorption characteristics can be achieved in the low frequency band by embedding resonance units into the conventional anechoic coating. However, in this way, the frequency range of effective sound absorption is relatively narrow, which limits the application of anechoic coating in engineering.
Kangkang Shi, Guoyong Jin, Tiangui Ye
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Influence of hole shape on sound absorption of underwater anechoic layers
Journal of Sound and Vibration, 2018Abstract A theoretical model is established to evaluate the sound absorption performance of underwater anechoic layers containing periodically distributed axial holes. Based on the concept for homogenized equivalent layer and on the theory of wave propagation in viscoelastic cylindrical tubes, the transfer function method is used to obtain the ...
Fengxian Xin, Tian Jian Lu
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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
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Underwater sound absorption of a meta-absorption layer with double negativity
Applied Acoustics, 2021Abstract An underwater meta-absorption layer (MAPL) is presented which consists of multiple steel scatters and a rubber matrix. Double negativity of the MAPL can be found within multiple frequency ranges with the effective medium method due to local resonance and wave scattering.
Ting Wang, Junyi Liu, Meixia Chen
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Low-frequency underwater sound absorption metamaterial
Physica Scripta, 2022Abstract Air bubbles in liquid are known for exhibiting low-frequency resonance and can be considered as passive scatterers. In this paper, we design an acoustic metamaterial consisting of an air bubble in a water-filled metal shell with an opening to develop low frequency underwater sound absorber. Numerical simulation is carried out
Tian Wang +3 more
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Acoustically sticky topographic metasurfaces for underwater sound absorption
The Journal of the Acoustical Society of America, 2018A class of metasurfaces for underwater sound absorption, based on a design principle that maximizes thermoviscous loss, is presented. When a sound meets a solid surface, it leaves a footprint in the form of thermoviscous boundary layers in which energy loss takes place. Considered to be a nuisance, this acoustic to vorticity/entropy mode conversion and
Hunki, Lee +6 more
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