Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/75008
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dc.contributorDepartment of Building Services Engineeringen_US
dc.creatorCai, Cen_US
dc.creatorMak, CMen_US
dc.date.accessioned2018-03-29T09:34:25Z-
dc.date.available2018-03-29T09:34:25Z-
dc.identifier.issn0965-9978en_US
dc.identifier.urihttp://hdl.handle.net/10397/75008-
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.rights© 2017 Elsevier Ltd. All rights reserved.en_US
dc.rights© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.rightsThe following publication Chenzhi, C. A. I., & Mak, C. M. (2018). Noise attenuation capacity of a Helmholtz resonator. Advances in Engineering Software, 116, 60-66 is available at https://doi.org/10.1016/j.advengsoft.2017.12.003en_US
dc.subjectFinite element methoden_US
dc.subjectHelmholtz resonatoren_US
dc.subjectNoise attenuation capacityen_US
dc.subjectTransmission lossen_US
dc.titleNoise attenuation capacity of a Helmholtz resonatoren_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage60en_US
dc.identifier.epage66en_US
dc.identifier.volume116en_US
dc.identifier.doi10.1016/j.advengsoft.2017.12.003en_US
dcterms.abstractHelmholtz resonator (HR) is one of the most basic acoustic models and has been widely used in engineering applications due to its simple, tunable and durable characteristics. The transmission loss index is mainly used to evaluate the acoustic transmission performance. Based on the transmission loss index, this paper proposes the noise attenuation capacity index as one of the key parameters to evaluate the noise attenuation performance of a HR. The noise attenuation capacity is defined as the integral of transmission loss in the frequency domain. The theoretical formula of a HR's noise attenuation capacity is first derived in this study. It indicates that the noise attenuation capacity of a HR is only related to geometries of the neck and duct's cross-sectional area. The cavity volume has no effects on its noise attenuation capacity. The proposed theoretical formula of a HR's noise attenuation capacity is validated by Finite Element Method (FEM) simulation using commercial software (COMSOL Multiphysics). The proposed noise attenuation capacity of a HR should therefore be considered as one of the main acoustic characteristics of a HR. It is hoped that the present study could provide a stepping stone for the investigation of the HR's or other silencers’ noise attenuation capacity and potential applications in all research areas in respect of the HR.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationAdvances in engineering software, Feb. 2018, v. 116, p. 60-66en_US
dcterms.isPartOfAdvances in engineering softwareen_US
dcterms.issued2018-02-
dc.identifier.scopus2-s2.0-85037972550-
dc.identifier.rosgroupid2017006399-
dc.description.ros2017-2018 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201803 bcmaen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberRGC-B3-0495-
dc.description.fundingSourceRGCen_US
dc.description.pubStatusPublisheden_US
dc.description.oaCategoryGreen (AAM)en_US
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