Evaluation of low-cost MEMS accelerometers for SHM : frequency and damping identification of civil structures

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorRibeiro, Renan Rocha-
Autor(es): dc.creatorLameiras, Rodrigo de Melo-
Data de aceite: dc.date.accessioned2021-10-14T18:19:23Z-
Data de disponibilização: dc.date.available2021-10-14T18:19:23Z-
Data de envio: dc.date.issued2019-11-13-
Data de envio: dc.date.issued2019-11-13-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/35834-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1679-78255308-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0002-7699-3171-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0003-3804-9427-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/628833-
Descrição: dc.descriptionTrabalho apresentado no CILAMCE 2018: IBERO-LATIN AMERICAN CONGRESS ON COMPUTATIONAL METHODS IN ENGINEERING-
Descrição: dc.descriptionSensing techniques based on accelerometers for modal parameters identification are among the most studied and applied in Structural Health Monitoring of civil structures. The advent of low-cost MEMS accelerometers and open-source electronic platforms, such as Arduino, have facilitated the design of low-cost systems suitable for modal identification, although there is still a lack of studies regarding practical application and comparison of commercially available low-cost accelerometers under SHM conditions. This work presents an experimental performance evaluation of six low-cost MEMS accelerometers for the identification of natural frequencies and damping ratios of a three-storey frame model and a reinforced concrete slab, as well as their noise characteristics. A low-cost Arduino-based data acquisition system was used. The results showed an overall good performance of the MEMS accelerometers, with identified natural frequencies errors within 1.02% and 7.76% of reference values, for the three-storey frame and concrete slab, respectively, and a noise density as low as 108 g/√Hz.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherAssociação Brasileira de Ciências Mecânicas-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsCC BY-
Palavras-chave: dc.subjectEngenharia de estruturas-
Palavras-chave: dc.subjectEngenharia - instrumentos-
Título: dc.titleEvaluation of low-cost MEMS accelerometers for SHM : frequency and damping identification of civil structures-
Tipo de arquivo: dc.typelivro digital-
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