Experimental Modal Analysis of Civil Engineering Structures
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/67103 |
Resumo: | The evolution of experimental modal analysis in the civil engineering structures, from input-output to output-only modal identification techniques, is discussed. The conventional modal testing is based on estimating a set of frequency responses functions (FRFs) relating the applied force and corresponding response at several pairs of points along the structure with enough high spatial and frequency resolution. The main drawbacks are the relatively low frequency resolution of the spatial estimates and the lack of energy to excite some relevant modes of vibration. There is currently a tendency worldwide to explore and improve the potential of output-only modal identification techniques, whose efficiency and accuracy have been illustrated with various applications. The techniques that may be used under normal operation conditions can provide a solid basis for developing finite-element correlation analyses, finite-element updating and validation, and implementing vibration-control devices. |
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Experimental Modal Analysis of Civil Engineering StructuresEngenharia estrutural, Engenharia civilStructural engineering, Civil engineeringThe evolution of experimental modal analysis in the civil engineering structures, from input-output to output-only modal identification techniques, is discussed. The conventional modal testing is based on estimating a set of frequency responses functions (FRFs) relating the applied force and corresponding response at several pairs of points along the structure with enough high spatial and frequency resolution. The main drawbacks are the relatively low frequency resolution of the spatial estimates and the lack of energy to excite some relevant modes of vibration. There is currently a tendency worldwide to explore and improve the potential of output-only modal identification techniques, whose efficiency and accuracy have been illustrated with various applications. The techniques that may be used under normal operation conditions can provide a solid basis for developing finite-element correlation analyses, finite-element updating and validation, and implementing vibration-control devices.20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/67103eng1541-016110.1111/j.1469-0691.2006.01393.xÁlvaro CunhaElsa Caetanoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:24:49Zoai:repositorio-aberto.up.pt:10216/67103Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:00:42.591776Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Experimental Modal Analysis of Civil Engineering Structures |
title |
Experimental Modal Analysis of Civil Engineering Structures |
spellingShingle |
Experimental Modal Analysis of Civil Engineering Structures Álvaro Cunha Engenharia estrutural, Engenharia civil Structural engineering, Civil engineering |
title_short |
Experimental Modal Analysis of Civil Engineering Structures |
title_full |
Experimental Modal Analysis of Civil Engineering Structures |
title_fullStr |
Experimental Modal Analysis of Civil Engineering Structures |
title_full_unstemmed |
Experimental Modal Analysis of Civil Engineering Structures |
title_sort |
Experimental Modal Analysis of Civil Engineering Structures |
author |
Álvaro Cunha |
author_facet |
Álvaro Cunha Elsa Caetano |
author_role |
author |
author2 |
Elsa Caetano |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Álvaro Cunha Elsa Caetano |
dc.subject.por.fl_str_mv |
Engenharia estrutural, Engenharia civil Structural engineering, Civil engineering |
topic |
Engenharia estrutural, Engenharia civil Structural engineering, Civil engineering |
description |
The evolution of experimental modal analysis in the civil engineering structures, from input-output to output-only modal identification techniques, is discussed. The conventional modal testing is based on estimating a set of frequency responses functions (FRFs) relating the applied force and corresponding response at several pairs of points along the structure with enough high spatial and frequency resolution. The main drawbacks are the relatively low frequency resolution of the spatial estimates and the lack of energy to excite some relevant modes of vibration. There is currently a tendency worldwide to explore and improve the potential of output-only modal identification techniques, whose efficiency and accuracy have been illustrated with various applications. The techniques that may be used under normal operation conditions can provide a solid basis for developing finite-element correlation analyses, finite-element updating and validation, and implementing vibration-control devices. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006 2006-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10216/67103 |
url |
https://hdl.handle.net/10216/67103 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1541-0161 10.1111/j.1469-0691.2006.01393.x |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799135931293237248 |