A crack identification method for bridge type structures under vehicular load using wavelet transform and particle swarm optimization

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dc.authorid0000-0003-3070-6365en_US
dc.contributor.authorGökdağ, Hakan
dc.date.accessioned2021-03-20T20:26:51Z
dc.date.available2021-03-20T20:26:51Z
dc.date.issued2013
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractIn this work a crack identification method is proposed for bridge type structures carrying moving vehicle. The bridge is modeled as an Euler-Bernoulli beam, and open cracks exist on several points of the beam. Half-car model is adopted for the vehicle. Coupled equations of the beam-vehicle system are solved using Newmark-Beta method, and the dynamic responses of the beam are obtained. Using these and the reference displacements, an objective function is derived. Crack locations and depths are determined by solving the optimization problem. To this end, a robust evolutionary algorithm, that is, the particle swarm optimization (PSO), is employed. To enhance the performance of the method, the measured displacements are denoised using multiresolution property of the discrete wavelet transform (DWT). It is observed that by the proposed method it is possible to determine small cracks with depth ratio 0.1 in spite of 5% noise interference. © 2013 Hakan Gökda?.en_US
dc.identifier.doi10.1155/2013/634217en_US
dc.identifier.issn1687-6261
dc.identifier.scopus2-s2.0-84880178466en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttp://doi.org/10.1155/2013/634217
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1298
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorGökdağ, Hakan
dc.language.isoenen_US
dc.relation.ispartofAdvances in Acoustics and Vibrationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject[No Kerywords]en_US
dc.titleA crack identification method for bridge type structures under vehicular load using wavelet transform and particle swarm optimizationen_US
dc.typeArticleen_US

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