A novel time-domain technique for damage detection applied to SHM using Savitzky-Golay filter

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dc.contributor.authorAnderson De Oliveira, M.
dc.contributor.authorFilho, J. V. [UNESP]
dc.contributor.authorJunior, V. L. [UNESP]
dc.contributor.authorInman, D. J.
dc.contributor.institutionFederal Institute of Education of Mato Grosso
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Michigan
dc.date.accessioned2022-04-28T19:01:40Z
dc.date.available2022-04-28T19:01:40Z
dc.date.issued2013-01-01
dc.description.abstractThis paper presents a novel damage detection approach for Structural Health Monitoring (SHM) sy stems, which is based on Savitzky-Golay filter and time-domain analysis. In this technique, a specific P ZT (actuator) excites the structure and three other ones are used as sensors to receive the structural responses. This method is quite similar to L amb wave based methods, but the excitation procedure and the analy sis of the respon se sig nals are different. F or the prop osed method, a wide band chi rp sig nal, with low amplitude and variable frequenc y, is used to excite the structure. The response signals are acquired in time-domain and smoothed by a Savitzky-Golay filter, and from the filtered signals the first and second derivatives are computed. CCDM (Correlation Coefficient Deviation Metric) indices are calculated from all signals (smoothed, first and second derivatives), considering the structure a healthy condition as a reference (baseline). Practical tests were carried out on an aluminum plate a nd the resul ts have de mons trat ed the e ffec t iveness of the pr oposed met hod.en
dc.description.affiliationDepartment of Electric and Electronic Federal Institute of Education of Mato Grosso
dc.description.affiliationTelecommunication Engineering Universidade Estadual Paulista
dc.description.affiliationDepartment of Mechanical Engineering Universidade Estadual Paulista
dc.description.affiliationDepartment of Aerospace Engineering University of Michigan
dc.description.affiliationUnespTelecommunication Engineering Universidade Estadual Paulista
dc.description.affiliationUnespDepartment of Mechanical Engineering Universidade Estadual Paulista
dc.format.extent996-1003
dc.identifier.citationStructural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013, v. 1, p. 996-1003.
dc.identifier.scopus2-s2.0-84945196236
dc.identifier.urihttp://hdl.handle.net/11449/220477
dc.language.isoeng
dc.relation.ispartofStructural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
dc.sourceScopus
dc.titleA novel time-domain technique for damage detection applied to SHM using Savitzky-Golay filteren
dc.typeTrabalho apresentado em evento

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