Duct-Borne noise control using active adaptive Helmholtz resonators array

Xu Wang, Cheuk Ming Mak, Yi Yun

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This article proposes a semi-active noise control method that involves the use of a periodic array of tunable Helmholtz resonators. This method is designed to be a more efficient, robust and broad-band adaptive attenuating effect than the traditional pass noise control methods used in duct-borne sound control. Based on the fundamental theory on sound waves propagating in a one-dimensional periodic duct system, the proposed control method combines band-gap attenuation using the side-branch resonators array with the autoadaptive system of noise control. The derived acoustic equations that take into account the plane sound wave propagation in viscous air within air duct walls are theoretically studied. Numerical computation is used to investigate the effectiveness of the proposed new semiadaptive noise control method for controlling transmission noise in a ventilation ductwork system.
Original languageEnglish
Title of host publication41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Pages3257-3264
Number of pages8
Volume4
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

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