Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain

Abstract In view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns deposited in a silicone rubber plate with periodic holes and calculate its bandgap...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hai-Fei Zhu, Xiao-Wei Sun, Ting Song, Xiao-Dong Wen, Xi-Xuan Liu, Jin-Shan Feng, Zi-Jiang Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/002dfb68203542edbf179423750fd909
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:002dfb68203542edbf179423750fd909
record_format	dspace
spelling	oai:doaj.org-article:002dfb68203542edbf179423750fd9092021-12-02T18:03:14ZTunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain10.1038/s41598-021-87904-62045-2322https://doaj.org/article/002dfb68203542edbf179423750fd9092021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87904-6https://doaj.org/toc/2045-2322Abstract In view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns deposited in a silicone rubber plate with periodic holes and calculate its bandgap characteristics by finite element method. The low-frequency bandgap mechanism of the designed model is discussed simultaneously. Accordingly, the influence of geometric parameters of the phononic crystal plate on the bandgap characteristics is analyzed and the bandgap adjustability under prestretch strain is further studied. Results show that the new designed phononic crystal plate has lower bandgap starting frequency and wider bandwidth than the traditional single-sided structure, which is due to the coupling between the resonance mode of the scatterer and the long traveling wave in the matrix with the introduction of periodic holes. Applying prestretch strain to the matrix can realize active realtime control of low-frequency bandgap under slight deformation and broaden the low-frequency bandgap, which can be explained as the multiple bands tend to be flattened due to the localization degree of unit cell vibration increases with the rise of prestrain. The presented structure improves the realtime adjustability of sound isolation and vibration reduction frequency for phononic crystal in complex acoustic vibration environments.Hai-Fei ZhuXiao-Wei SunTing SongXiao-Dong WenXi-Xuan LiuJin-Shan FengZi-Jiang LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hai-Fei Zhu Xiao-Wei Sun Ting Song Xiao-Dong Wen Xi-Xuan Liu Jin-Shan Feng Zi-Jiang Liu Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
description	Abstract In view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns deposited in a silicone rubber plate with periodic holes and calculate its bandgap characteristics by finite element method. The low-frequency bandgap mechanism of the designed model is discussed simultaneously. Accordingly, the influence of geometric parameters of the phononic crystal plate on the bandgap characteristics is analyzed and the bandgap adjustability under prestretch strain is further studied. Results show that the new designed phononic crystal plate has lower bandgap starting frequency and wider bandwidth than the traditional single-sided structure, which is due to the coupling between the resonance mode of the scatterer and the long traveling wave in the matrix with the introduction of periodic holes. Applying prestretch strain to the matrix can realize active realtime control of low-frequency bandgap under slight deformation and broaden the low-frequency bandgap, which can be explained as the multiple bands tend to be flattened due to the localization degree of unit cell vibration increases with the rise of prestrain. The presented structure improves the realtime adjustability of sound isolation and vibration reduction frequency for phononic crystal in complex acoustic vibration environments.
format	article
author	Hai-Fei Zhu Xiao-Wei Sun Ting Song Xiao-Dong Wen Xi-Xuan Liu Jin-Shan Feng Zi-Jiang Liu
author_facet	Hai-Fei Zhu Xiao-Wei Sun Ting Song Xiao-Dong Wen Xi-Xuan Liu Jin-Shan Feng Zi-Jiang Liu
author_sort	Hai-Fei Zhu
title	Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
title_short	Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
title_full	Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
title_fullStr	Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
title_full_unstemmed	Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
title_sort	tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/002dfb68203542edbf179423750fd909
work_keys_str_mv	AT haifeizhu tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT xiaoweisun tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT tingsong tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT xiaodongwen tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT xixuanliu tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT jinshanfeng tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain AT zijiangliu tunablecharacteristicsoflowfrequencybandgapsintwodimensionalmultivibratorphononiccrystalplatesunderprestrain
_version_	1718378787853303808

Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain

Ejemplares similares