Vibro-acoustic performance of different steel studs in double-leaf walls by Finite Element analysis

Hdl Handle:
http://hdl.handle.net/10545/621444
Title:
Vibro-acoustic performance of different steel studs in double-leaf walls by Finite Element analysis
Authors:
Nguyen, Van Bac; Morgan, Tertia; English, Martin; Castellucci, Michael
Abstract:
Cold-formed steel studs are often used in lightweight partition walls to provide structural stability but in the same time they change the acoustic performance of the whole system. The overall design of such lightweight structures for acoustic sound insulation becomes very complicated as the sound passing through stud needs to be quantified. One of the greatest challenges is to characterize the stud's geometric effects on the sound transmission of the partition walls. This paper presents a 2-D Finite Element modelling approach and results into the vibro-acoustic performance of different studs in double-leaf walls which are placed in between a reverberant source room and a receiving room. The acoustic medium inside rooms was modelled using fluid elements and the structure was modelled with plane strain elements. The interaction between the acoustic medium and the structure was modelled in a coupled structural-acoustic analysis. An FE modelling setup which includes appropriate model parameters to be used in the structural-acoustic analysis was presented. The FE sound reduction of double-leaf walls using two different stud profiles was then calculated. Experimental tests complying with standards ISO 717-1:1997 and 140-3:1995 were also carried out to evaluate the FE results. It has shown that the stud's shape have significant effects on the sound reduction of the double-leaf walls, and the FE results have similar trends are in fair agreement with the experimental results. A parametric study was conducted and the effects of the stud's shapes on the sound reduction were presented and discussed.
Affiliation:
Hadley Industries plc; University of Sussex
Citation:
Nguyen, Van Bac, et al (2015) 'Vibro-acoustic performance of different steel studs in double-leaf walls by Finite Element analysis', Building Acoustics, 22(2), pp. 65-80
Publisher:
Sage
Journal:
Building Acoustics
Issue Date:
Jun-2015
URI:
http://hdl.handle.net/10545/621444
Additional Links:
http://journals.sagepub.com/toc/buaa/22/2
Type:
Article
Language:
en
ISSN:
1351010X
Sponsors:
N/A
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorNguyen, Van Bacen
dc.contributor.authorMorgan, Tertiaen
dc.contributor.authorEnglish, Martinen
dc.contributor.authorCastellucci, Michaelen
dc.date.accessioned2017-02-21T15:05:42Z-
dc.date.available2017-02-21T15:05:42Z-
dc.date.issued2015-06-
dc.identifier.citationNguyen, Van Bac, et al (2015) 'Vibro-acoustic performance of different steel studs in double-leaf walls by Finite Element analysis', Building Acoustics, 22(2), pp. 65-80en
dc.identifier.issn1351010X-
dc.identifier.urihttp://hdl.handle.net/10545/621444-
dc.description.abstractCold-formed steel studs are often used in lightweight partition walls to provide structural stability but in the same time they change the acoustic performance of the whole system. The overall design of such lightweight structures for acoustic sound insulation becomes very complicated as the sound passing through stud needs to be quantified. One of the greatest challenges is to characterize the stud's geometric effects on the sound transmission of the partition walls. This paper presents a 2-D Finite Element modelling approach and results into the vibro-acoustic performance of different studs in double-leaf walls which are placed in between a reverberant source room and a receiving room. The acoustic medium inside rooms was modelled using fluid elements and the structure was modelled with plane strain elements. The interaction between the acoustic medium and the structure was modelled in a coupled structural-acoustic analysis. An FE modelling setup which includes appropriate model parameters to be used in the structural-acoustic analysis was presented. The FE sound reduction of double-leaf walls using two different stud profiles was then calculated. Experimental tests complying with standards ISO 717-1:1997 and 140-3:1995 were also carried out to evaluate the FE results. It has shown that the stud's shape have significant effects on the sound reduction of the double-leaf walls, and the FE results have similar trends are in fair agreement with the experimental results. A parametric study was conducted and the effects of the stud's shapes on the sound reduction were presented and discussed.en
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherSageen
dc.relation.urlhttp://journals.sagepub.com/toc/buaa/22/2en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectVibro-acousticen
dc.subjectSteel strengthen
dc.subjectDouble-leaf wallen
dc.subjectFinite Element analysisen
dc.titleVibro-acoustic performance of different steel studs in double-leaf walls by Finite Element analysisen
dc.typeArticleen
dc.contributor.departmentHadley Industries plcen
dc.contributor.departmentUniversity of Sussexen
dc.identifier.journalBuilding Acousticsen
All Items in UDORA are protected by copyright, with all rights reserved, unless otherwise indicated.