Detecting sound waves generated by leaks in buried water distribution pipes

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dc.contributor.authorKirby, Ray
dc.contributor.authorDuan, Wenbo
dc.contributor.authorKarimi, Mahmoud
dc.contributor.authorBrennan, Michael [UNESP]
dc.contributor.authorKessissoglou, Nicole
dc.contributor.institutionUniversity of Technology Sydney
dc.contributor.institutionBrunel University London
dc.contributor.institutionUniversity of New South Wales
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:51:38Z
dc.date.available2018-12-11T16:51:38Z
dc.date.issued2017-01-01
dc.description.abstractIt is common to use guided sound waves to detect leaks or cracks in pipelines. Applications include the nondestructive testing of oil and gas pipelines, which normally takes places at ultrasonic frequencies, as well as the detection of leaks and ruptures in water filled pipes at much lower audio frequencies. However, if the pipe is buried then sound leaks out of the pipe into the surrounding medium and this lowers the acoustic energy travelling along the pipe wall. This has the potential to limit the applications of this technology, and so it is necessary to develop knowledge of the acoustic properties of the guided waves in order to optimise detection techniques. Accordingly, this work examines the properties of sound waves propagating in an infinitely long fluid-filled buried pipe, with application to leak detection at low audio frequencies. A parametric study is undertaken to examine the sensitivity of sound propagation to the properties of the internal liquid, pipe walls and of the surrounding medium.en
dc.description.affiliationCentre for Audio Acoustics and Vibration University of Technology Sydney
dc.description.affiliationBrunel Innovation Centre Brunel University London
dc.description.affiliationSchool of Mechanical and Manufacturing Engineering University of New South Wales
dc.description.affiliationDepartment of Mechanical Engineering UNESP
dc.description.affiliationUnespDepartment of Mechanical Engineering UNESP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/50412-3
dc.description.sponsorshipIdFAPESP: 2015/50312-4
dc.identifier.citationProceedings of ACOUSTICS 2017 Perth: Sound, Science and Society - 2017 Annual Conference of the Australian Acoustical Society, AAS 2017.
dc.identifier.scopus2-s2.0-85041330050
dc.identifier.urihttp://hdl.handle.net/11449/170600
dc.language.isoeng
dc.relation.ispartofProceedings of ACOUSTICS 2017 Perth: Sound, Science and Society - 2017 Annual Conference of the Australian Acoustical Society, AAS 2017
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleDetecting sound waves generated by leaks in buried water distribution pipesen
dc.typeTrabalho apresentado em evento

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