Mass-Air-Mass resonance cavity suppression using Helmholtz Resonators

ResearchSpace/Manakin Repository

Show simple item record Hall, A en Dodd, George en Schmid, G en
dc.contributor.editor Buret, M en
dc.contributor.editor Mitchell, A en
dc.coverage.spatial Melbourne, Australia en 2020-02-11T02:06:41Z en 2019-11-10 en
dc.identifier.citation Editors: Buret M, Mitchell A. Proceedings of the Annual Conference of the Australian Acoustical Society. The Australian Acoustical Society. 11 pages. 10 Nov 2019 en
dc.identifier.isbn 978-0-909882-09-9 en
dc.identifier.uri en
dc.description.abstract Densification of housing is leading to the construction of more medium-rise, multi-tenancy buildings. In order to minimise material and building cost but achieve the required structural performance, it is attractive to use light-weight construction methods based on materials such as plasterboard and light timber framing (LTF). LTF con-struction is traditional in NZ but where it is used for inter-tenancy walls in medium and high density housing we are finding that transmission of noise between dwellings is becoming a major problem. In this exploratory research project we report on initial encouraging results of using Helmholtz Resonators (HR) to reduce the loss of insulation in lightweight cavity walls in the region of the mass-air-mass (MAM) resonance. This resonance results from the two wall leaves enclosing an air spring on which they can resonate. Often the wall insulation in this critical low frequency band is significantly poorer than if it were only a single leaf wall. Such walls, although meeting code requirements, can be subjectively undesirable when insulating against sounds from low frequency loudspeakers which are a ubiquitous feature of modern living. So far the work has comprised using 3D printed HRs tuned to the MAM resonance and coupled into an experimental cavity to demonstrate proof of principle. en
dc.description.uri en
dc.publisher The Australian Acoustical Society en
dc.relation.ispartof Acoustics 2019: Sound decisions moving forward with acoustics en
dc.relation.ispartofseries Proceedings of the Annual Conference of the Australian Acoustical Society en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.rights.uri en
dc.title Mass-Air-Mass resonance cavity suppression using Helmholtz Resonators en
dc.type Conference Item en
dc.rights.holder Copyright: The Australian Acoustical Society en en
pubs.finish-date 2019-11-13 en
pubs.start-date 2019-11-10 en
dc.rights.accessrights en
pubs.subtype Proceedings en
pubs.elements-id 792629 en Engineering en Mechanical Engineering en
pubs.record-created-at-source-date 2020-01-21 en

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