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

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-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 languageEnglish
Title of host publication41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Pages7695-7701
Number of pages7
Volume9
Publication statusPublished - 1 Dec 2012
Event41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012 - New York, NY, United States
Duration: 19 Aug 201222 Aug 2012

Conference

Conference41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
CountryUnited States
CityNew York, NY
Period19/08/1222/08/12

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this