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dc.contributor.authorChung, Hen_NZ
dc.contributor.authorEmms, Gen_NZ
dc.date.accessioned2015-10-12T23:17:15Z
dc.date.available2015-10-12T23:17:15Z
dc.date.copyright2014-11-16en_NZ
dc.identifier.citation43rd International Congress on Noise Control Engineering held at Melbourne, Melbourne Australia, 2014-11-16to 2014-11-19, published in: The proceedings of the 43rd International Congress on Noise Control Engineeringen_NZ
dc.identifier.urihttp://hdl.handle.net/10292/9102
dc.description.abstractThis paper shows how to use a mathematical model to predict the vibration of lightweight timber-framed floor/ceiling systems (LTFSs) caused by mechanical excitation. The LTFS considered here is made up of an upper floor layer, a cavity space with timber joists and a ceiling. These components are joined by timber battens, ceiling furring channels and ceiling clips. The vibration in the structure is caused by a localized excitation on the top surface and the resulting vibration level of the ceiling surface will be analysed. The cavity space is filled with fibre infill for damping the sound transmitting through the cavity. A unique feature of the design and the model is the sand-sawdust mixture in the upper layer. The theoretical model and the experimental measurements show that the sand-sawdust dampens the vibration in the frequency range between 10 and 200 Hz. The damping by the sand-sawdust and the fibre infill are found by comparing the numerical simulations against the experimental measurements. We show that the simple linear frequency dependent loss factors can be used to predict the low-frequency vibrations of LTFSs.en_NZ
dc.publisherThe Australian Acoustical Society
dc.relation.urihttp://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/abstracts/session-papers.htm#p548
dc.rightsCopyright © 2014 The Australian Acoustical Society, PO Box 1843, Toowong DC QLD 4066, AUSTRALIA. Permission is hereby granted for any person to reproduce a fractional part of any paper herein provided that permission is obtained from its author(s) and credit is given to the author and to these proceedings. An author or their research sponsor may reproduce their paper in full providing they credit these proceedings. This permission is not assignable.
dc.subjectSound; Insulation; Transmission
dc.titleVibration reduction in lightweight floor/ceiling systems with a sand-sawdust damping layeren_NZ
dc.typeConference Contribution
dc.rights.accessrightsOpenAccessen_NZ
aut.publication.placeMelbourneen_NZ
pubs.elements-id189211


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