A frequency domain blind identification method for operational modal analysis using a limited number of sensors

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorHarbin Engn Univ-
Autor(es): dc.contributorUniv Lyon-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorLi, Xinhui-
Autor(es): dc.creatorAntoni, Jerome-
Autor(es): dc.creatorBrennan, Michael J. [UNESP]-
Autor(es): dc.creatorYang, Tiejun-
Autor(es): dc.creatorLiu, Zhigang-
Data de aceite: dc.date.accessioned2022-02-22T00:04:54Z-
Data de disponibilização: dc.date.available2022-02-22T00:04:54Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-01-13-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1177/1077546319897218-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/195140-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/195140-
Descrição: dc.descriptionOperational modal analysis is an experimental modal analysis approach, which uses vibration data collected when the structure is under operating conditions. Amongst the methods for operational modal analysis, blind source separation-based methods have been shown to be efficient and powerful. The existing blind source separation modal identification methods, however, require the number of sensors to be at least equal to the number of modes in the frequency range of interest to avoid spatial aliasing. In this article, a frequency domain algorithm that overcomes this problem is proposed, which is based on the joint diagonalization of a set of weighted covariance matrices. In the proposed approach, the frequency range of interest is partitioned into several frequency ranges in which the number of active modes in each band is less than the number of sensors. Numerical simulations and an experimental example demonstrate the efficacy of the method.-
Descrição: dc.descriptionHarbin Engn Univ, Harbin, Peoples R China-
Descrição: dc.descriptionUniv Lyon, INSA Lyon, Lyon, France-
Descrição: dc.descriptionUniv Estadual Paulista, Sao Paulo, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Sao Paulo, Brazil-
Formato: dc.format1383-1398-
Idioma: dc.languageen-
Publicador: dc.publisherSage Publications Ltd-
Relação: dc.relationJournal Of Vibration And Control-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectOperational modal analysis-
Palavras-chave: dc.subjectsecond-order blind identification-
Palavras-chave: dc.subjectblind source separation-
Palavras-chave: dc.subjectindependent component analysis-
Palavras-chave: dc.subjectblind modal identification-
Título: dc.titleA frequency domain blind identification method for operational modal analysis using a limited number of sensors-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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