Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures

Acoustic artificial periodic structures, also known as phononic crystal, have been widely used in special acoustic problems such as low-frequency vibration reduction and noise reduction due to their bandgap characteristics. Different from previous researches, which focus on the bandgap characteristi...

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Autores principales:	Shuai Tang, Rui Wang, Jianning Han
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2019
Materias:	Metamaterial local resonance artificial structures phononic crystals Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/491292040fb442afaca1c972ff00dfcf
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spelling	oai:doaj.org-article:491292040fb442afaca1c972ff00dfcf2021-11-19T00:03:03ZDirectional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures2169-353610.1109/ACCESS.2019.2928988https://doaj.org/article/491292040fb442afaca1c972ff00dfcf2019-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/8763941/https://doaj.org/toc/2169-3536Acoustic artificial periodic structures, also known as phononic crystal, have been widely used in special acoustic problems such as low-frequency vibration reduction and noise reduction due to their bandgap characteristics. Different from previous researches, which focus on the bandgap characteristics, we designed a locally resonant artificial periodic structure, which can not only use the bandgap characteristics to design a directional transmission channel of acoustic waves, but also use its bandpass characteristics to generate multidirectional transmission of acoustic waves. The vibration mechanism of two-dimensional, three-components phononic crystal lattice structures was given, and a variety of directional transmission models of acoustic waves were constructed based on the unit cell. The simulation results showed that acoustic directional transmission characteristics were produced by the locally periodic resonance structure, and the transmission direction depends on the design of the structure. By taking advantage of the superposition properties of acoustic waves, the incident acoustic wave in the horizontal direction can be converted into the outgoing acoustic wave in the vertical direction without changing the position of the model, and this capability greatly expands the application range of the artificial periodic structure. In addition, the transmission characteristics of the directional transmission effect have a strong correlation with the frequency; that is, limited by the wavelength, the acoustic pressure distribution mode at different frequencies will be different. At the resonant frequency of the structure, the transmission efficiency of the acoustic wave will be highest. Moreover, similar to the traditional artificial periodic structure, the acoustic model proposed in this paper also has bandgap characteristics. Using bandgap characteristics, we designed an acoustic directional transmission channel to achieve uniform directional transmission of acoustic waves. These results greatly enrich the application space of artificial acoustic structures and provide new ideas for acoustic communication, acoustic detection, and acoustic stealth.Shuai TangRui WangJianning HanIEEEarticleMetamateriallocal resonanceartificial structuresphononic crystalsElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 7, Pp 94033-94038 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Metamaterial local resonance artificial structures phononic crystals Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Metamaterial local resonance artificial structures phononic crystals Electrical engineering. Electronics. Nuclear engineering TK1-9971 Shuai Tang Rui Wang Jianning Han Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
description	Acoustic artificial periodic structures, also known as phononic crystal, have been widely used in special acoustic problems such as low-frequency vibration reduction and noise reduction due to their bandgap characteristics. Different from previous researches, which focus on the bandgap characteristics, we designed a locally resonant artificial periodic structure, which can not only use the bandgap characteristics to design a directional transmission channel of acoustic waves, but also use its bandpass characteristics to generate multidirectional transmission of acoustic waves. The vibration mechanism of two-dimensional, three-components phononic crystal lattice structures was given, and a variety of directional transmission models of acoustic waves were constructed based on the unit cell. The simulation results showed that acoustic directional transmission characteristics were produced by the locally periodic resonance structure, and the transmission direction depends on the design of the structure. By taking advantage of the superposition properties of acoustic waves, the incident acoustic wave in the horizontal direction can be converted into the outgoing acoustic wave in the vertical direction without changing the position of the model, and this capability greatly expands the application range of the artificial periodic structure. In addition, the transmission characteristics of the directional transmission effect have a strong correlation with the frequency; that is, limited by the wavelength, the acoustic pressure distribution mode at different frequencies will be different. At the resonant frequency of the structure, the transmission efficiency of the acoustic wave will be highest. Moreover, similar to the traditional artificial periodic structure, the acoustic model proposed in this paper also has bandgap characteristics. Using bandgap characteristics, we designed an acoustic directional transmission channel to achieve uniform directional transmission of acoustic waves. These results greatly enrich the application space of artificial acoustic structures and provide new ideas for acoustic communication, acoustic detection, and acoustic stealth.
format	article
author	Shuai Tang Rui Wang Jianning Han
author_facet	Shuai Tang Rui Wang Jianning Han
author_sort	Shuai Tang
title	Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
title_short	Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
title_full	Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
title_fullStr	Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
title_full_unstemmed	Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures
title_sort	directional transmission characteristics of acoustic waves based on artificial periodic structures
publisher	IEEE
publishDate	2019
url	https://doaj.org/article/491292040fb442afaca1c972ff00dfcf
work_keys_str_mv	AT shuaitang directionaltransmissioncharacteristicsofacousticwavesbasedonartificialperiodicstructures AT ruiwang directionaltransmissioncharacteristicsofacousticwavesbasedonartificialperiodicstructures AT jianninghan directionaltransmissioncharacteristicsofacousticwavesbasedonartificialperiodicstructures
_version_	1718420666042023936

Directional Transmission Characteristics of Acoustic Waves Based on Artificial Periodic Structures

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