The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems

Xu Wang; Cheuk Ming Mak

The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

This paper investigates wave propagation in a duct with a periodic Helmholtz resonators array. For the resonators array, the Bloch wave theory and the transfer matrix method are used. It is found that this duct-resonator system has a unique attenuation characteristic brought about by structural periodicity. The results predicted by the theory fit well with the computer simulation using a three-dimensional finite element method. The long-term significance is that periodic resonators may more effectively control noise in ducts by broadening the bandwidth they attenuate and increasing the magnitude of sound attenuation.

Original language	English
Title of host publication	41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Pages	7695-7701
Number of pages	7
Volume	9
Publication status	Published - 1 Dec 2012
Event	41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012 - New York, NY, United States Duration: 19 Aug 2012 → 22 Aug 2012

Conference

Conference	41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Country/Territory	United States
City	New York, NY
Period	19/08/12 → 22/08/12

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

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title = "The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems",

abstract = "This paper investigates wave propagation in a duct with a periodic Helmholtz resonators array. For the resonators array, the Bloch wave theory and the transfer matrix method are used. It is found that this duct-resonator system has a unique attenuation characteristic brought about by structural periodicity. The results predicted by the theory fit well with the computer simulation using a three-dimensional finite element method. The long-term significance is that periodic resonators may more effectively control noise in ducts by broadening the bandwidth they attenuate and increasing the magnitude of sound attenuation.",

author = "Xu Wang and Mak, {Cheuk Ming}",

year = "2012",

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booktitle = "41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012",

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Wang, X & Mak, CM 2012, The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems. in 41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012. vol. 9, pp. 7695-7701, 41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012, New York, NY, United States, 19/08/12.

The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems. / Wang, Xu; Mak, Cheuk Ming.
41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012. Vol. 9 2012. p. 7695-7701.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Mak, Cheuk Ming

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N2 - This paper investigates wave propagation in a duct with a periodic Helmholtz resonators array. For the resonators array, the Bloch wave theory and the transfer matrix method are used. It is found that this duct-resonator system has a unique attenuation characteristic brought about by structural periodicity. The results predicted by the theory fit well with the computer simulation using a three-dimensional finite element method. The long-term significance is that periodic resonators may more effectively control noise in ducts by broadening the bandwidth they attenuate and increasing the magnitude of sound attenuation.

AB - This paper investigates wave propagation in a duct with a periodic Helmholtz resonators array. For the resonators array, the Bloch wave theory and the transfer matrix method are used. It is found that this duct-resonator system has a unique attenuation characteristic brought about by structural periodicity. The results predicted by the theory fit well with the computer simulation using a three-dimensional finite element method. The long-term significance is that periodic resonators may more effectively control noise in ducts by broadening the bandwidth they attenuate and increasing the magnitude of sound attenuation.

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M3 - Conference article published in proceeding or book

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BT - 41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012

T2 - 41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012

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The theoretical investigation of Helmholtz resonators array for broad-band noise control in ventilation systems

Abstract

Conference

ASJC Scopus subject areas

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