Results 71 to 80 of about 9,256 (180)
Applied SciencesAcoustic metamaterials (AMs) are artificially structured materials composed of subwavelength units that enable acoustic phenomena not achievable with conventional materials and structures.
Ju-Hee Lee +3 more
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Sound reduction by metamaterial-based acoustic enclosure
AIP Advances, 2014 In many practical systems, acoustic radiation control on noise sources contained within a finite volume by an acoustic enclosure is of great importance, but difficult to be accomplished at low frequencies due to the enhanced acoustic-structure ...
Shanshan Yao +3 more
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Acoustic computational metamaterials [PDF]
Chinese Science Bulletin, 2021 Zengyao Lü +3 more
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Resonant Acoustic Metamaterials
Applied SciencesAcoustic applications of metamaterials have rapidly developed over the past few decades. The sound attenuation provided by metamaterials is due to the interaction between soundwaves and scatterers organized into a reticular grid, with a peak attenuation at a specific frequency band that is highly dependent on the scatterers’ diameter and reticular ...
Amelia Trematerra +9 more
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AIP AdvancesOptimization of acoustic metamaterial structures and prediction of acoustic absorption properties have received much attention in various fields. This thesis aims to optimize and predict the acoustic absorption performance of quasi-Helmholtz acoustic ...
Jianxin Xu +3 more
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Effective Negative Mass Nonlinear Acoustic Metamaterial with Pure Cubic Oscillator
Advances in Civil Engineering, 2018 Acoustic metamaterial, which can prohibit effectively the elastic wave propagation in the bandgap frequency range, has broad application prospects in the vibration and noise reduction areas.
Ming Gao, Zhiqiang Wu, Zhijie Wen
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, 2017 We consider wave propagation along fluid-loaded structures which take the form of an elastic plate augmented by an array of resonators forming a metasurface, that is, a surface structured with sub-wavelength resonators.
Colombi, A. +3 more
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An Integration Strategy for Acoustic Metamaterials to Achieve Absorption by Design
Applied Sciences, 2018 As much of metamaterials’ properties originate from resonances, the novel characteristics displayed by acoustic metamaterials are a narrow bandwidth and high dispersive in nature. However, for practical applications, broadband is often a necessity.
Min Yang, Ping Sheng
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Journal of Marine Science and Engineering, 2017 The characteristics of acoustic wave transmitting in a metamaterial-type seawater piping system are studied. The metamaterial pipe, which consists of a uniform pipe with air-water chamber Helmholtz resonators (HRs) mounted periodically along its axial ...
Boyun Liu, Liang Yang
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Relaxed micromorphic broadband scattering for finite-size meta-structures -- a detailed development
, 2019 The conception of new metamaterials showing unorthodox behaviors with respect to elastic wavepropagation has become possible in recent years thanks to powerful dynamical homogenization techniques.
Aivaliotis, Alexios +5 more
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