On the use of parallel full-order state observers for damage detection in mechanical systems

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMattei, Rafael D.-
Autor(es): dc.creatorde Melo, Gilberto P.-
Autor(es): dc.creatorBueno, Douglas D.-
Data de aceite: dc.date.accessioned2025-08-21T21:18:26Z-
Data de disponibilização: dc.date.available2025-08-21T21:18:26Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s40430-021-03270-4-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229942-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229942-
Descrição: dc.descriptionAccording to the literature, structural health monitoring techniques based on state observers usually evaluate the differences between measured and estimated states to detect a damage. The practical application of this strategy is an unfeasible solution if the monitoring system needs to detect damages in a region of the structure where sensors cannot be placed. For these cases, a common alternative is to use sensors at nearby regions, but the accuracy of detection can be reduced. In this context, the present article introduces a new approach for damage detection in mechanical systems using the relative difference obtained from the estimations of a state measured by two different sensors. In this method, the estimated state is obtained by sensors in different positions from the one that needs to be monitored. To do so, parallel full-order state observers are employed and an optimal gain is computed. An index is proposed to detect the damages, which is time-dependent and computed using the responses of the systems. Numerical simulations are carried out considering two different mechanical systems. Linear and nonlinear damages are considered, and the results demonstrate that the proposed approach can detect damages accurately.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSchool of Engineering of Ilha Solteira Department of Mechanical Engineering São Paulo State University (UNESP), Av. Brasil Centro 56-
Descrição: dc.descriptionSchool of Engineering of Ilha Solteira Department of Mechanical Engineering São Paulo State University (UNESP), Av. Brasil Centro 56-
Descrição: dc.descriptionCNPq: 130665/2017-7-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Brazilian Society of Mechanical Sciences and Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDamage detection index-
Palavras-chave: dc.subjectDifference between two estimated states-
Palavras-chave: dc.subjectParallel state observers-
Palavras-chave: dc.subjectSimultaneous structural health monitoring-
Palavras-chave: dc.subjectVibration control-
Título: dc.titleOn the use of parallel full-order state observers for damage detection in mechanical systems-
Tipo de arquivo: dc.typevídeo-
Aparece nas coleções:Repositório Institucional - Unesp

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