Study on acoustic radiation response characteristics of sound barriers

The influence of acoustic radiation is considered in the prediction of noise attenuation effect of sound barrier, which provides a theoretical reference for further improving the insertion loss of sound barrier. Based on the theory of thin plate vibration, the vibration mode and natural frequencies...

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Autores principales:	Jin Jiyong, Zhu Congyun, Wu Rui, Liu Yanming, Li Miao
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	sound barrier two-dimensional beam function acoustic radiation sound power insertion loss Physics QC1-999
Acceso en línea:	https://doaj.org/article/c0594599fa204afc807e67bbfc54f3e4
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id	oai:doaj.org-article:c0594599fa204afc807e67bbfc54f3e4
record_format	dspace
spelling	oai:doaj.org-article:c0594599fa204afc807e67bbfc54f3e42021-12-05T14:11:02ZStudy on acoustic radiation response characteristics of sound barriers2391-547110.1515/phys-2021-0068https://doaj.org/article/c0594599fa204afc807e67bbfc54f3e42021-10-01T00:00:00Zhttps://doi.org/10.1515/phys-2021-0068https://doaj.org/toc/2391-5471The influence of acoustic radiation is considered in the prediction of noise attenuation effect of sound barrier, which provides a theoretical reference for further improving the insertion loss of sound barrier. Based on the theory of thin plate vibration, the vibration mode and natural frequencies of sound barrier under arbitrary boundary conditions are established by using two-dimensional beam function method, and the forced vibration response of the sound barrier is calculated based on the modal superposition method. MATLAB software (MathWorks Company, Natick, Massachusetts, USA) is used to calculate the natural frequencies and the radiated sound power level of the sound barrier, which indicated that the sound radiation caused by external excitation would significantly increase the sound pressure level at the received point, which should be considered as one of the influencing factors in the prediction of noise attenuation effect. The influence of diverse structural parameters on the radiated acoustic power is compared, providing an excellent reference for the design of sound barrier with low noise.Jin JiyongZhu CongyunWu RuiLiu YanmingLi MiaoDe Gruyterarticlesound barriertwo-dimensional beam functionacoustic radiationsound powerinsertion lossPhysicsQC1-999ENOpen Physics, Vol 19, Iss 1, Pp 602-608 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sound barrier two-dimensional beam function acoustic radiation sound power insertion loss Physics QC1-999
spellingShingle	sound barrier two-dimensional beam function acoustic radiation sound power insertion loss Physics QC1-999 Jin Jiyong Zhu Congyun Wu Rui Liu Yanming Li Miao Study on acoustic radiation response characteristics of sound barriers
description	The influence of acoustic radiation is considered in the prediction of noise attenuation effect of sound barrier, which provides a theoretical reference for further improving the insertion loss of sound barrier. Based on the theory of thin plate vibration, the vibration mode and natural frequencies of sound barrier under arbitrary boundary conditions are established by using two-dimensional beam function method, and the forced vibration response of the sound barrier is calculated based on the modal superposition method. MATLAB software (MathWorks Company, Natick, Massachusetts, USA) is used to calculate the natural frequencies and the radiated sound power level of the sound barrier, which indicated that the sound radiation caused by external excitation would significantly increase the sound pressure level at the received point, which should be considered as one of the influencing factors in the prediction of noise attenuation effect. The influence of diverse structural parameters on the radiated acoustic power is compared, providing an excellent reference for the design of sound barrier with low noise.
format	article
author	Jin Jiyong Zhu Congyun Wu Rui Liu Yanming Li Miao
author_facet	Jin Jiyong Zhu Congyun Wu Rui Liu Yanming Li Miao
author_sort	Jin Jiyong
title	Study on acoustic radiation response characteristics of sound barriers
title_short	Study on acoustic radiation response characteristics of sound barriers
title_full	Study on acoustic radiation response characteristics of sound barriers
title_fullStr	Study on acoustic radiation response characteristics of sound barriers
title_full_unstemmed	Study on acoustic radiation response characteristics of sound barriers
title_sort	study on acoustic radiation response characteristics of sound barriers
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/c0594599fa204afc807e67bbfc54f3e4
work_keys_str_mv	AT jinjiyong studyonacousticradiationresponsecharacteristicsofsoundbarriers AT zhucongyun studyonacousticradiationresponsecharacteristicsofsoundbarriers AT wurui studyonacousticradiationresponsecharacteristicsofsoundbarriers AT liuyanming studyonacousticradiationresponsecharacteristicsofsoundbarriers AT limiao studyonacousticradiationresponsecharacteristicsofsoundbarriers
_version_	1718371499986911232

Study on acoustic radiation response characteristics of sound barriers

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