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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampPederiva, Robson-
dc.typeArtigopt_BR
dc.titleRemarks on the sommerfeld effect characterization in the wavelet domainpt_BR
dc.contributor.authorVaranis, M.-
dc.contributor.authorBalthazar, J.M.-
dc.contributor.authorSilva, A.-
dc.contributor.authorMereles, A.G.-
dc.contributor.authorPederiva, R.-
dc.subjectDinâmica não linearpt_BR
dc.subjectWavelets (Matemática)pt_BR
dc.subject.otherlanguageNonlinear dynamicspt_BR
dc.subject.otherlanguageWavelets (Mathematics)pt_BR
dc.description.abstractIn many applications in engineering, a mechanical system operates in the nonstationary regime, either partially of fully, creating the possibility to generate nonlinearities in them. Great efforts have been made to better understand and characterize these phenomena. One of several methods that are being used for the processing of signals of a nonstationary nature, as well as for the characterization of nonlinearities in mechanical systems, is the wavelet transform. A particular phenomenon that is seen in systems operating in the nonstationary regime is the Sommerfeld effect, which occurs due to the nonlinear interaction between a nonideal energy source and a mechanical system. This phenomenon can lead to high amplitudes of vibration for the system that in turn can cause damage in it. Therefore, this work presents an application of the continuous wavelet transform and the wavelet packet transform for the characterization of the Sommerfeld effect in mechanical systems where only the time response is at hand. Experimental procedures were performed where a nonideal energy source (an unbalanced DC motor) was used to excite (a) a portal frame and (b) a three-story shear-building. The results showed the effectiveness and the potential of the methods proposedpt_BR
dc.relation.ispartofJournal of vibration and controlpt_BR
dc.publisher.cityLondon, ECpt_BR
dc.publisher.countryReino Unidopt_BR
dc.publisherSagept_BR
dc.date.issued2019-01-
dc.date.monthofcirculationJan.pt_BR
dc.language.isoengpt_BR
dc.description.volume25pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage98pt_BR
dc.description.lastpage108pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn1077-5463pt_BR
dc.identifier.eissn1741-2986pt_BR
dc.identifier.doi10.1177/1077546318771804pt_BR
dc.identifier.urlhttps://journals.sagepub.com/doi/full/10.1177/1077546318771804pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsordocumentnumberNão tempt_BR
dc.date.available2020-05-05T13:56:41Z-
dc.date.accessioned2020-05-05T13:56:41Z-
dc.description.provenanceSubmitted by Susilene Barbosa da Silva (susilene@unicamp.br) on 2020-05-05T13:56:41Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:16:14Z : No. of bitstreams: 1 000454720900009.pdf: 1545139 bytes, checksum: 118c0d4663f9db00ba671088d4c3cb94 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-05T13:56:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/340122-
dc.contributor.departmentDepartamento de Projeto Mecânicopt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordnonlinear dynamicspt_BR
dc.subject.keywordOutput-only measurementpt_BR
dc.identifier.source000454720900009pt_BR
dc.creator.orcid0000-0003-4069-1590pt_BR
dc.type.formArtigopt_BR
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