Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series

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dc.contributor.authorShiki, Sidney Bruce [UNESP]
dc.contributor.authorDa Silva, Samuel [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:58:00Z
dc.date.available2018-12-11T16:58:00Z
dc.date.issued2015-07-09
dc.description.abstractNonlinear behavior can be important for the monitoring of the structural state of mechanical systems since it can be mistakenly classified as a damage in the systems. However, nonlinear tools are still not consolidated and need further research for applications in mechanical system. Discrete-time Volterra series is an interesting mathematical framework to deal with nonlinear dynamics. It is a clear generalization of the linear convolution for weakly nonlinear systems. In the present work two different damage indicators are proposed based on Volterra models by considering linear and nonlinear contributions of the total response. The goal is to evaluate these indicators using an experimental test rig where the damages are simulated and considering the nonlinear regime of motion. The main advantages and drawbacks of the proposed methodology are highlighted in the final remarks.en
dc.description.affiliationUNESP - Univ Estadual Paulista Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Mecanica, Av. Brasil 56
dc.description.affiliationUnespUNESP - Univ Estadual Paulista Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Mecanica, Av. Brasil 56
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 12/09135-3
dc.description.sponsorshipIdFAPESP: 13/25148-0
dc.identifierhttp://dx.doi.org/10.1088/1742-6596/628/1/012012
dc.identifier.citationJournal of Physics: Conference Series, v. 628, n. 1, 2015.
dc.identifier.doi10.1088/1742-6596/628/1/012012
dc.identifier.file2-s2.0-84938703120.pdf
dc.identifier.issn1742-6596
dc.identifier.issn1742-6588
dc.identifier.scopus2-s2.0-84938703120
dc.identifier.urihttp://hdl.handle.net/11449/171981
dc.language.isoeng
dc.relation.ispartofJournal of Physics: Conference Series
dc.relation.ispartofsjr0,241
dc.relation.ispartofsjr0,241
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleEvaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra seriesen
dc.typeTrabalho apresentado em evento

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Artigos - Engenharia Mecânica - FEIS