Results 1 to 10 of about 13,251 (137)
Research Progress and Development Trends of Acoustic Metamaterials [PDF]
Molecules, 2021 Acoustic metamaterials are materials with artificially designed structures, which have characteristics that surpass the behavior of natural materials, such as negative refraction, anomalous Doppler effect, plane focusing, etc.
Hao Song +3 more
doaj +2 more sources
Sharkskin-Inspired Magnetoactive Reconfigurable Acoustic Metamaterials [PDF]
Research, 2020 Most of the existing acoustic metamaterials rely on architected structures with fixed configurations, and thus, their properties cannot be modulated once the structures are fabricated.
Kyung Hoon Lee +5 more
doaj +2 more sources
Digitally virtualized atoms for acoustic metamaterials [PDF]
Nature Communications, 2020 Tuning the constitutive parameters of metamaterials in real time depends on the ability to modify the structure or external circuits attached to the metamaterials.
Choonlae Cho +3 more
doaj +2 more sources
Ultra-low and ultra-broad-band nonlinear acoustic metamaterials [PDF]
Nature Communications, 2017 Linear acoustic metamaterials based on resonances are generally tunable but limited by their narrow bands. Here, Fang et al. fabricate one- and two-dimensional nonlinear acoustic metamaterials with a broadband, low-frequency, response—greatly suppressing
Xin Fang +4 more
doaj +2 more sources
Research Progress of Locally Resonance Acoustic Metamaterials [PDF]
E3S Web of Conferences, 2021 Bragg scattering phonon crystal and locally resonant acoustic metamaterials were introduced. In order to generate noise reduction, the lattice constant of Bragg scattering phonon crystal should be of the same order of magnitude as the wave length of the ...
Zhehua Du
doaj +1 more source
A review of underwater acoustic metamaterials for underwater acoustic equipment
Frontiers in Physics, 2022 Researchers use underwater acoustic equipment to explore the unknown ocean environment, which is one of the important means to understand and utilize the ocean.
Zhenjing Zhu +17 more
doaj +1 more source
Review and prospects of metamaterials used to control elastic waves and vibrations
Frontiers in Physics, 2022 Acoustic metamaterials, artificial composite structures with exotic material properties used to control elastic waves, have become a new frontier in physics, materials science, engineering and chemistry.
Huajie Dai +8 more
doaj +1 more source
AIP Advances, 2021 Acoustic metamaterials achieve the function of absorbing sound through equivalent negative parameters and bandgaps. Sound absorption is closely related to structural design.
Yan Du +4 more
doaj +1 more source
Bandgap optimization for chiral acoustic metamaterials based on material selection method
Zhongguo Jianchuan Yanjiu, 2023 ObjectivesThis study seeks to expand the bandgap frequency band, reduce the bandgap starting frequency and analyze and optimize the bandgap parameters of acoustic metamaterials.
Luyun CHEN, Xing XIE
doaj +1 more source
Transcranial Acoustic Metamaterial Parameters Inverse Designed by Neural Networks
BME Frontiers, 2023 Objective: The objective of this work is to investigate the mapping relationship between transcranial ultrasound image quality and transcranial acoustic metamaterial parameters using inverse design methods.
Yuming Yang +6 more
doaj +1 more source