The insertion loss of perforated porous plates in a duct without and with mean air flow

Haydar Aygun, Attenborough

Research output: Contribution to journalArticle

Abstract

Perforated plates are very good at attenuating sound in the duct systems, especially treating HVAC duct systems where private conversations are conveyed to next room. Perforated plates should be mounted vertically or horizontally in the duct to reduce the sound transmission. A novel analytical model that takes into account the effect of perforations and the effect of the flexural vibrations in the plates has been formulated and used to calculate the insertion loss in the absence of air flow. The agreement between measured and predicted insertion loss of perforated porous plates in the absence of air flow is satisfactory.
Original languageEnglish
Pages (from-to)506-513
JournalApplied Acoustics
Volume69
Issue number6
DOIs
Publication statusPublished - 2008

Fingerprint Dive into the research topics of 'The insertion loss of perforated porous plates in a duct without and with mean air flow'. Together they form a unique fingerprint.

  • Cite this