Optimal frequency range for structural health monitoring using electric impedance technique
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/220575 |
Resumo: | This paper aims to find the best frequency range for structural health monitoring considering external disturbance effect. The proposed damage-sensitive index can be used to detect and locate minor structural faults in aerospace, civil, or mechanical systems. Electric impedance is directly computed using a non-parametric relationship between electrical signals obtained from patches of piezoceramics (PZT) coupled in flexible structures as sensor/actuator, namely a smart structure. In the experimental application, the external disturbance was generated by another PZT actuator bonded closely of the sensor/actuator. The correlation coefficient deviation was investigated as metric chart using the absolute impedance signals. In order to establish a threshold value to recognize the actual integrity stage of the structure the one-way analysis of variance (ANOVA) is performed bended with the Scheffe's multiple comparison procedure. Comparisons were made in an experimental test-bed using an aluminum plate with two PZTs as sensor/actuator and one PZT as external disturbance bonded on the surface considering several structural conditions. The experimental results demonstrated the efficacy of the approach. Careful attention is necessary to choose correctly the frequency range that may be utilized to characterize the influence of the external disturbance in a further monitoring in a real-world structure using smart structure concepts. |
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Optimal frequency range for structural health monitoring using electric impedance techniqueAnovaExternal disturbanceMultiple comparison proceduresSmart structuresStructural health monitoringThis paper aims to find the best frequency range for structural health monitoring considering external disturbance effect. The proposed damage-sensitive index can be used to detect and locate minor structural faults in aerospace, civil, or mechanical systems. Electric impedance is directly computed using a non-parametric relationship between electrical signals obtained from patches of piezoceramics (PZT) coupled in flexible structures as sensor/actuator, namely a smart structure. In the experimental application, the external disturbance was generated by another PZT actuator bonded closely of the sensor/actuator. The correlation coefficient deviation was investigated as metric chart using the absolute impedance signals. In order to establish a threshold value to recognize the actual integrity stage of the structure the one-way analysis of variance (ANOVA) is performed bended with the Scheffe's multiple comparison procedure. Comparisons were made in an experimental test-bed using an aluminum plate with two PZTs as sensor/actuator and one PZT as external disturbance bonded on the surface considering several structural conditions. The experimental results demonstrated the efficacy of the approach. Careful attention is necessary to choose correctly the frequency range that may be utilized to characterize the influence of the external disturbance in a further monitoring in a real-world structure using smart structure concepts.Group of Intelligent Material and Systems (GMSINT) Department of Mechanical Engineering Universidade Estadual Paulista, UNESP, Av. Brasil n 56Department of Mechanical Design Faculty of Mechanical Engineering State University of Campinas - UNICAMP Rua Mendeleiev s/n Cidade UniveristariA, P.O. Box 6122Group of Intelligent Material and Systems (GMSINT) Department of Mechanical Engineering Universidade Estadual Paulista, UNESP, Av. Brasil n 56Universidade Estadual Paulista (UNESP)Universidade Estadual de Campinas (UNICAMP)Marqui, Clayton Rodrigo [UNESP]Da Silva, SamuelBueno, Douglas Domingues [UNESP]Santos, Rodrigo Borges [UNESP]Lopes, Vicente [UNESP]2022-04-28T19:03:01Z2022-04-28T19:03:01Z2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject7th European Conference on Structural Dynamics, EURODYN 2008.http://hdl.handle.net/11449/2205752-s2.0-84959908383Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng7th European Conference on Structural Dynamics, EURODYN 2008info:eu-repo/semantics/openAccess2022-04-28T19:03:01Zoai:repositorio.unesp.br:11449/220575Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:03:01Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Optimal frequency range for structural health monitoring using electric impedance technique |
title |
Optimal frequency range for structural health monitoring using electric impedance technique |
spellingShingle |
Optimal frequency range for structural health monitoring using electric impedance technique Marqui, Clayton Rodrigo [UNESP] Anova External disturbance Multiple comparison procedures Smart structures Structural health monitoring |
title_short |
Optimal frequency range for structural health monitoring using electric impedance technique |
title_full |
Optimal frequency range for structural health monitoring using electric impedance technique |
title_fullStr |
Optimal frequency range for structural health monitoring using electric impedance technique |
title_full_unstemmed |
Optimal frequency range for structural health monitoring using electric impedance technique |
title_sort |
Optimal frequency range for structural health monitoring using electric impedance technique |
author |
Marqui, Clayton Rodrigo [UNESP] |
author_facet |
Marqui, Clayton Rodrigo [UNESP] Da Silva, Samuel Bueno, Douglas Domingues [UNESP] Santos, Rodrigo Borges [UNESP] Lopes, Vicente [UNESP] |
author_role |
author |
author2 |
Da Silva, Samuel Bueno, Douglas Domingues [UNESP] Santos, Rodrigo Borges [UNESP] Lopes, Vicente [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Marqui, Clayton Rodrigo [UNESP] Da Silva, Samuel Bueno, Douglas Domingues [UNESP] Santos, Rodrigo Borges [UNESP] Lopes, Vicente [UNESP] |
dc.subject.por.fl_str_mv |
Anova External disturbance Multiple comparison procedures Smart structures Structural health monitoring |
topic |
Anova External disturbance Multiple comparison procedures Smart structures Structural health monitoring |
description |
This paper aims to find the best frequency range for structural health monitoring considering external disturbance effect. The proposed damage-sensitive index can be used to detect and locate minor structural faults in aerospace, civil, or mechanical systems. Electric impedance is directly computed using a non-parametric relationship between electrical signals obtained from patches of piezoceramics (PZT) coupled in flexible structures as sensor/actuator, namely a smart structure. In the experimental application, the external disturbance was generated by another PZT actuator bonded closely of the sensor/actuator. The correlation coefficient deviation was investigated as metric chart using the absolute impedance signals. In order to establish a threshold value to recognize the actual integrity stage of the structure the one-way analysis of variance (ANOVA) is performed bended with the Scheffe's multiple comparison procedure. Comparisons were made in an experimental test-bed using an aluminum plate with two PZTs as sensor/actuator and one PZT as external disturbance bonded on the surface considering several structural conditions. The experimental results demonstrated the efficacy of the approach. Careful attention is necessary to choose correctly the frequency range that may be utilized to characterize the influence of the external disturbance in a further monitoring in a real-world structure using smart structure concepts. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 2022-04-28T19:03:01Z 2022-04-28T19:03:01Z |
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 |
7th European Conference on Structural Dynamics, EURODYN 2008. http://hdl.handle.net/11449/220575 2-s2.0-84959908383 |
identifier_str_mv |
7th European Conference on Structural Dynamics, EURODYN 2008. 2-s2.0-84959908383 |
url |
http://hdl.handle.net/11449/220575 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
7th European Conference on Structural Dynamics, EURODYN 2008 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799965718252355584 |