Three dimensional quasi-periodic noise barriers

Samaneh M.B. Fard, Herwig Peters, Nicole Kessissoglou, Steffen Marburg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Two dimensional noise barrier studies investigate the insertion loss in the shadow zone of an infinite noise barrier for a coherent line source. Such models are often preferred to avoid the high computational cost of three dimensional models. The major limitation of two dimensional barrier models is the constant cross section of the barrier in the third direction. This paper presents a new solution to evaluate the performance of 3D noise barriers that do not have a constant cross section. A quasi-periodic noise barrier model is developed to reduce the size of a 3D infinite boundary element model and thereby reduce the computational time. Different quasi-periodic noise barrier designs are developed and their acoustic performance at different frequencies and receiver positions are compared.

Original languageEnglish
Title of host publicationINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering
Subtitle of host publicationImproving the World Through Noise Control
EditorsJohn Davy, Marion Burgess, Charles Don, Liz Dowsett, Terry McMinn, Norm Broner
PublisherAustralian Acoustical Society
ISBN (Electronic)9780909882037
StatePublished - 2014
Externally publishedYes
Event43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 - Melbourne, Australia
Duration: 16 Nov 201419 Nov 2014

Publication series

NameINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control

Conference

Conference43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
Country/TerritoryAustralia
CityMelbourne
Period16/11/1419/11/14

Keywords

  • Boundary element method
  • Insertion loss
  • Noise barrier

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