Show simple item record

dc.contributor.authorVilniškis, Tomas
dc.contributor.authorJanuševičius, Tomas
dc.date.accessioned2023-12-22T07:06:43Z
dc.date.available2023-12-22T07:06:43Z
dc.date.issued2023
dc.identifier.urihttps://etalpykla.vilniustech.lt/xmlui/handle/123456789/153773
dc.description.abstractThe excessive noise of machines and devices could be reduced with the use of acoustic enclosures. Additional requirement for enclosures: free air circulation through construction walls, which is important for device ventilation. The acoustic properties of the construction parts are essential to model their ability to reduce noise. The basic properties of airborne sound insulation of construction walls and absorption of used material should be experimentally tested. In this article, sound reduction modelling of acoustic enclosure with recycled materials covered walls was presented. Sound pressure level reduction of enclosure was modelled with Odeon software. A 3D model was created that includes the acoustic properties of the materials used. The enclosure walls consist of two different constructions. The side walls and roof were made from a single plasterboard covered with recycled rubber material. The back and front walls were constructed as louver construction, which plates were mounted with the ability to change the tilt angle which allows to create an air transparent construction. Acoustic properties of the materials used were tested in different ways. Sound absorption properties of 50 mm thick sample of recycled rubber and transmission loss parameters of used sound insulating walls were measured in the impedance tube. The results of the experimental test of the construction parts were included in the 3D model. The modelling results represented a decrease in sound pressure levels with an increasing distance from the enclosure on different sides. Four different enclosures with different tilt angle of louver plates (0°, 15°, 30°, 45°) were modelled. Results were presented in the 125–4000 Hz frequency range. According to the results, efficiency of enclosure sound reduction with 45° tilted plates could reach up to 12 dB.eng
dc.formatPDF
dc.format.extentp. 1-9
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.titleModelling of sound reduction of sound insulating enclosure with recycled rubber covered walls
dc.typeStraipsnis recenzuotame konferencijos darbų leidinyje / Paper published in peer-reviewed conference publication
dcterms.accessRightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dcterms.licenseCreative Commons – Attribution – 4.0 International
dcterms.references25
dc.type.pubtypeP1d - Straipsnis recenzuotame konferencijos darbų leidinyje / Article published in peer-reviewed conference proceedings
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyAplinkos inžinerijos fakultetas / Faculty of Environmental Engineering
dc.subject.researchfieldT 004 - Aplinkos inžinerija / Environmental engineering
dc.subject.studydirectionF03 - Medžiagų technologijos / Materials technology
dc.subject.vgtuprioritizedfieldsAE0202 - Aplinkos apsaugos technologijos / Environmental protection technologies
dc.subject.ltspecializationsL102 - Energetika ir tvari aplinka / Energy and a sustainable environment
dc.subject.enenclosure
dc.subject.ensound absorption
dc.subject.ensound insulation
dc.subject.ensound attenuation
dc.subject.enmulti-layered baffles
dcterms.sourcetitle12th International conference "Environmental Engineering", 27-28 April 2023, Vilnius Gediminas Technical University, Lithuania
dc.publisher.nameVilnius Gediminas Technical University
dc.publisher.cityVilnius
dc.identifier.doi10.3846/enviro.2023.915
dc.identifier.elaba181463120


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record