A stochastic model for the speed of leak noise propagation in plastic water pipes

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dc.contributor.authorScussel, O. [UNESP]
dc.contributor.authorSeçgin, A.
dc.contributor.authorBrennan, M. J. [UNESP]
dc.contributor.authorMuggleton, J. M.
dc.contributor.authorAlmeida, F. C.L. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionDokuz Eylül University
dc.contributor.institutionUniversity of Southampton
dc.date.accessioned2021-06-25T10:56:26Z
dc.date.available2021-06-25T10:56:26Z
dc.date.issued2021-06-09
dc.description.abstractA good estimate of the speed of leak noise propagation is necessary to pinpoint the location of a leak using acoustic correlators. Models currently exist for this purpose, but they do not consider uncertainties in the pipe geometry and the properties of the pipe and soil. Using the fact that leak noise propagates as a predominantly fluid-borne wave, this paper develops a stochastic model of the speed of leak noise propagation in plastic water distribution pipes that can account for these uncertainties. The model provides confidence limits for the estimate of this wave speed. It is based on the mean and standard deviation of the pipe geometry as well as the pipe and soil material properties, which have strong influence on the speed at which the leak noise propagates in the pipe. Numerical examples, using parameters from water supply systems found in the field, in which the pipe is made from Medium-Density Polyethylene (MDPE) and Polyvinyl Chloride (PVC) are presented to validate the model. Monte Carlo simulations for both in-air and buried pipes are presented to check the 99.7% confidence interval. To verify that the predictions from the stochastic models give realistic results, they are compared with some measurements from different sites, in which nominal properties and tolerances for the pipe and soil properties are assumed.en
dc.description.affiliationDepartment of Mechanical Engineering UNESP-FEIS
dc.description.affiliationDokuz Eylül University Department of Mechanical Engineering
dc.description.affiliationInstitute of Sound and Vibration Research University of Southampton
dc.description.affiliationFaculty of Science and Engineering UNESP-FCE
dc.description.affiliationDepartment of Mechanical Engineering UNESP-FEB
dc.description.affiliationUnespDepartment of Mechanical Engineering UNESP-FEIS
dc.description.affiliationUnespFaculty of Science and Engineering UNESP-FCE
dc.description.affiliationUnespDepartment of Mechanical Engineering UNESP-FEB
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 2018/25360-3
dc.description.sponsorshipIdCAPES: 88887.374001/2019-00
dc.identifierhttp://dx.doi.org/10.1016/j.jsv.2021.116057
dc.identifier.citationJournal of Sound and Vibration, v. 501.
dc.identifier.doi10.1016/j.jsv.2021.116057
dc.identifier.issn1095-8568
dc.identifier.issn0022-460X
dc.identifier.scopus2-s2.0-85103105089
dc.identifier.urihttp://hdl.handle.net/11449/207511
dc.language.isoeng
dc.relation.ispartofJournal of Sound and Vibration
dc.sourceScopus
dc.subjectLeak noise correlators
dc.subjectPlastic water pipes
dc.subjectUncertainty propagation
dc.subjectVibro-acoustics
dc.titleA stochastic model for the speed of leak noise propagation in plastic water pipesen
dc.typeArtigo
unesp.author.orcid0000-0002-9924-9580[1]
unesp.author.orcid0000-0001-5874-5863[3]
unesp.author.orcid0000-0001-7695-8782[4]

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Artigos - Engenharia Mecânica - FEIS
Artigos - Engenharia Mecânica - FEB