Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures

Metamaterials have created a unique structure with enhanced capabilities in comparison to naturally occurring materials. Vibration attenuation which is of paramount importance in civil and mechanical engineering structures is one of the applications derived from metamaterials. This paper describes a...

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Autores principales:	Akintoye O. Oyelade, Olatunde J. Oladimeji
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Multiresonator Bandgaps Vibration attenuation Metamaterial Mechanics of engineering. Applied mechanics TA349-359 Technology T
Acceso en línea:	https://doaj.org/article/68fae65adcb74cf3a25347b41138233e
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spelling	oai:doaj.org-article:68fae65adcb74cf3a25347b41138233e2021-12-04T04:36:01ZCoupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures2666-359710.1016/j.finmec.2021.100052https://doaj.org/article/68fae65adcb74cf3a25347b41138233e2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666359721000433https://doaj.org/toc/2666-3597Metamaterials have created a unique structure with enhanced capabilities in comparison to naturally occurring materials. Vibration attenuation which is of paramount importance in civil and mechanical engineering structures is one of the applications derived from metamaterials. This paper describes a novel metamaterial consisting of a multiresonator mass-in-mass lattice system with inner masses coupled by a linear spring. To better understand the bandgap generation and wave attenuation zones, the dispersion relation is calculated using Bloch's theorem under the assumption of an infinite lattice. Results show that two additional bandgaps are formed compared to the conventional multiresonator lattice system. The roles played by the additional spring, and the ratio of the masses are investigated in this study. The accuracy of the proposed method is verified by the transmittance of the proposed finite model, and a parametric analysis is conducted to reveal the effect of various parameters on the bandgap performance. It is found that there is a good agreement between the infinite and finite models of the metamaterial. The present study is very helpful for the design and application of metamaterial in vibration isolation.Akintoye O. OyeladeOlatunde J. OladimejiElsevierarticleMultiresonatorBandgapsVibration attenuationMetamaterialMechanics of engineering. Applied mechanicsTA349-359TechnologyTENForces in Mechanics, Vol 5, Iss , Pp 100052- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Multiresonator Bandgaps Vibration attenuation Metamaterial Mechanics of engineering. Applied mechanics TA349-359 Technology T
spellingShingle	Multiresonator Bandgaps Vibration attenuation Metamaterial Mechanics of engineering. Applied mechanics TA349-359 Technology T Akintoye O. Oyelade Olatunde J. Oladimeji Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
description	Metamaterials have created a unique structure with enhanced capabilities in comparison to naturally occurring materials. Vibration attenuation which is of paramount importance in civil and mechanical engineering structures is one of the applications derived from metamaterials. This paper describes a novel metamaterial consisting of a multiresonator mass-in-mass lattice system with inner masses coupled by a linear spring. To better understand the bandgap generation and wave attenuation zones, the dispersion relation is calculated using Bloch's theorem under the assumption of an infinite lattice. Results show that two additional bandgaps are formed compared to the conventional multiresonator lattice system. The roles played by the additional spring, and the ratio of the masses are investigated in this study. The accuracy of the proposed method is verified by the transmittance of the proposed finite model, and a parametric analysis is conducted to reveal the effect of various parameters on the bandgap performance. It is found that there is a good agreement between the infinite and finite models of the metamaterial. The present study is very helpful for the design and application of metamaterial in vibration isolation.
format	article
author	Akintoye O. Oyelade Olatunde J. Oladimeji
author_facet	Akintoye O. Oyelade Olatunde J. Oladimeji
author_sort	Akintoye O. Oyelade
title	Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
title_short	Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
title_full	Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
title_fullStr	Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
title_full_unstemmed	Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
title_sort	coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/68fae65adcb74cf3a25347b41138233e
work_keys_str_mv	AT akintoyeooyelade coupledmultiresonatorsacousticmetamaterialforvibrationsuppressionincivilengineeringstructures AT olatundejoladimeji coupledmultiresonatorsacousticmetamaterialforvibrationsuppressionincivilengineeringstructures
_version_	1718372915137740800

Coupled multiresonators acoustic metamaterial for vibration suppression in civil engineering structures

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