Influence of nonlinear subunits on the resonance frequency band gaps of acoustic metamaterial
Sign Up to like & getrecommendations! Published in 2018 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-018-4263-5
Abstract: Recently, a significant attention has been directed toward so called ‘acoustic metamaterials’ which have large similarity with already-known ‘electromagnetic metamaterials’ which are applied for elimination of the electromagnetic waves. The stop of electromagnetic waves is… read more here.
Keywords: system; acoustic metamaterial; frequency; effective mass ... See more keywords
Wave modulation in a nonlinear acoustic metamaterial
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Non-Linear Mechanics"
DOI: 10.1016/j.ijnonlinmec.2021.103788
Abstract: Abstract The nonlinear modulation of waves in a metamaterial mass-in-mass lattice model is studied. The governing continuum nonlinear equation is obtained from the original discrete model. The important differences in the modulated nonlinear wave dynamics… read more here.
Keywords: modulation; nonlinear acoustic; wave modulation; modulation nonlinear ... See more keywords
Sound transmission of acoustic metamaterial beams with periodic inertial amplification mechanisms
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2021.116009
Abstract: Abstract This paper presents the improved sound insulation performance obtained from a new type of acoustic metamaterial, built by attaching periodic inertial amplification (IA) mechanisms to a host beam. The IA mechanism is a triangular… read more here.
Keywords: periodic inertial; sound transmission; inertial amplification; beam ... See more keywords
On control of harmonic waves in an acoustic metamaterial
Sign Up to like & getrecommendations! Published in 2021 at "Mechanics Research Communications"
DOI: 10.1016/j.mechrescom.2021.103745
Abstract: Abstract Generation of harmonic waves in a mass-in mass model of an acoustic metamaterial is considered. It is shown numerically that outside the band gap, the boundary harmonic excitation gives rise to a formation of… read more here.
Keywords: control harmonic; harmonic waves; band gap; waves acoustic ... See more keywords
Complementary Acoustic Metamaterial for Penetrating Aberration Layers.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c06227
Abstract: Impedance-matched acoustic materials were developed to improve ultrasound penetration through the aberration layer. The traditional ultrasound layer matching material is called a couplant, which can only enhance ultrasound transmission to soft biological media such as… read more here.
Keywords: acoustic metamaterial; aberration; bone; complementary acoustic ... See more keywords
Broadband impedance matching using acoustic metamaterial with a helical hole
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5119414
Abstract: By utilizing a unit cell helical hole acoustic metamaterial, we illustrate the realization of broadband transmission without the need for the interlayer spacing or gradient structure. Its transmission property is evaluated analytically and numerically based… read more here.
Keywords: acoustic metamaterial; broadband impedance; impedance matching; broadband ... See more keywords
A reconfigurable magnetorheological elastomer acoustic metamaterial
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0015645
Abstract: Resonant acoustic metamaterials (AMMs) are structures with intrinsic resonances designed to interact with acoustic wavefields to enable applications like low-frequency sound mitigation using materials much smaller than the wavelength affected. However, the addressable frequency range… read more here.
Keywords: acoustic metamaterial; frequency; magnetorheological elastomer; reconfigurable magnetorheological ... See more keywords
Experimental characterization of a one-dimensional nonreciprocal acoustic metamaterial with anti-parallel diodes
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Physics"
DOI: 10.1063/5.0019896
Abstract: Characterization of a newly developed class of passive nonreciprocal acoustic metamaterials is presented in an attempt to quantify their ability of controlling the flow and distribution of acoustic energy in acoustic cavities and systems. The… read more here.
Keywords: acoustic metamaterial; one dimensional; nonreciprocal acoustic; experimental characterization ... See more keywords
Broadband bandgap and shock vibration properties of acoustic metamaterial fluid-filled pipes
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/5.0030179
Abstract: This paper describes the design of an acoustic metamaterial fluid-filled pipe with periodically variable materials. The aim of this design is to improve the broadband vibration attenuation frequency range of fluid-filled pipes by combining the… read more here.
Keywords: fluid filled; acoustic metamaterial; vibration; filled pipes ... See more keywords
Multibands acoustic metamaterial with multilayer structure
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/aad6d7
Abstract: A multiband acoustic metamaterial (AM) with negative modulus is presented. To realize the multibands, we conduct the unit structure of a resonator with multilayers in which we adjust the number of layers of local resonance… read more here.
Keywords: acoustic metamaterial; layer; metamaterial multilayer; physics ... See more keywords
Ultra-open acoustic metamaterial silencer based on Fano-like interference
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.024302
Abstract: Recently, with advances in acoustic metamaterial science, the possibility of sound attenuation using subwavelength structures, while maintaining permeability to air, has been demonstrated. However, the ongoing challenge addressed herein is the fact that among such… read more here.
Keywords: ultra open; like interference; fano like; acoustic metamaterial ... See more keywords