Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1088/1742-6596/628/1/012012 http://hdl.handle.net/11449/171981 |
Resumo: | Nonlinear 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. |
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Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra seriesNonlinear 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.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNESP - Univ Estadual Paulista Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Mecanica, Av. Brasil 56UNESP - Univ Estadual Paulista Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Mecanica, Av. Brasil 56FAPESP: 12/09135-3FAPESP: 13/25148-0Universidade Estadual Paulista (Unesp)Shiki, Sidney Bruce [UNESP]Da Silva, Samuel [UNESP]2018-12-11T16:58:00Z2018-12-11T16:58:00Z2015-07-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1088/1742-6596/628/1/012012Journal of Physics: Conference Series, v. 628, n. 1, 2015.1742-65961742-6588http://hdl.handle.net/11449/17198110.1088/1742-6596/628/1/0120122-s2.0-849387031202-s2.0-84938703120.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Physics: Conference Series0,2410,241info:eu-repo/semantics/openAccess2023-12-10T06:16:13Zoai:repositorio.unesp.br:11449/171981Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-10T06:16:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
title |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
spellingShingle |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series Shiki, Sidney Bruce [UNESP] |
title_short |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
title_full |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
title_fullStr |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
title_full_unstemmed |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
title_sort |
Evaluation of damage indexes for structural health monitoring in nonlinear mechanical systems based on Volterra series |
author |
Shiki, Sidney Bruce [UNESP] |
author_facet |
Shiki, Sidney Bruce [UNESP] Da Silva, Samuel [UNESP] |
author_role |
author |
author2 |
Da Silva, Samuel [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Shiki, Sidney Bruce [UNESP] Da Silva, Samuel [UNESP] |
description |
Nonlinear 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. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-09 2018-12-11T16:58:00Z 2018-12-11T16:58:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1088/1742-6596/628/1/012012 Journal of Physics: Conference Series, v. 628, n. 1, 2015. 1742-6596 1742-6588 http://hdl.handle.net/11449/171981 10.1088/1742-6596/628/1/012012 2-s2.0-84938703120 2-s2.0-84938703120.pdf |
url |
http://dx.doi.org/10.1088/1742-6596/628/1/012012 http://hdl.handle.net/11449/171981 |
identifier_str_mv |
Journal of Physics: Conference Series, v. 628, n. 1, 2015. 1742-6596 1742-6588 10.1088/1742-6596/628/1/012012 2-s2.0-84938703120 2-s2.0-84938703120.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Physics: Conference Series 0,241 0,241 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965231971041280 |