Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model

Detalhes bibliográficos
Autor(a) principal: Carlos Moutinho
Data de Publicação: 2005
Outros Autores: Álvaro Cunha, Elsa Caetano
Tipo de documento: Livro
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: https://hdl.handle.net/10216/71416
Resumo: This paper describes the work for a real implementation of an active damping system to reduce harmonic vibrations in a plane frame physical model with 3 degrees-of-freedom. For this purpose, it is suggested the use of an active mass damper commanded by a derivate controller which has the effect of increasing the modal damping coefficients in correspondence with a specific gain value. This control gain, as well as the system stability, was evaluated using the root-locus technique. The efficiency of the proposed control system to achieve pre-defined damping ratios was verified experimentally, by analyzing the free decay responses of the system after being excited at resonant frequencies.
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spelling Implementation of an active damping system to reduce harmonic vibrations in a 3DOF modelEngenharia civilCivil engineeringThis paper describes the work for a real implementation of an active damping system to reduce harmonic vibrations in a plane frame physical model with 3 degrees-of-freedom. For this purpose, it is suggested the use of an active mass damper commanded by a derivate controller which has the effect of increasing the modal damping coefficients in correspondence with a specific gain value. This control gain, as well as the system stability, was evaluated using the root-locus technique. The efficiency of the proposed control system to achieve pre-defined damping ratios was verified experimentally, by analyzing the free decay responses of the system after being excited at resonant frequencies.20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookapplication/pdfhttps://hdl.handle.net/10216/71416engCarlos MoutinhoÁlvaro CunhaElsa Caetanoinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-02-27T18:16:22Zoai:repositorio-aberto.up.pt:10216/71416Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T22:43:35.706836Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
title Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
spellingShingle Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
Carlos Moutinho
Engenharia civil
Civil engineering
title_short Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
title_full Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
title_fullStr Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
title_full_unstemmed Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
title_sort Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model
author Carlos Moutinho
author_facet Carlos Moutinho
Álvaro Cunha
Elsa Caetano
author_role author
author2 Álvaro Cunha
Elsa Caetano
author2_role author
author
dc.contributor.author.fl_str_mv Carlos Moutinho
Álvaro Cunha
Elsa Caetano
dc.subject.por.fl_str_mv Engenharia civil
Civil engineering
topic Engenharia civil
Civil engineering
description This paper describes the work for a real implementation of an active damping system to reduce harmonic vibrations in a plane frame physical model with 3 degrees-of-freedom. For this purpose, it is suggested the use of an active mass damper commanded by a derivate controller which has the effect of increasing the modal damping coefficients in correspondence with a specific gain value. This control gain, as well as the system stability, was evaluated using the root-locus technique. The efficiency of the proposed control system to achieve pre-defined damping ratios was verified experimentally, by analyzing the free decay responses of the system after being excited at resonant frequencies.
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/book
format book
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10216/71416
url https://hdl.handle.net/10216/71416
dc.language.iso.fl_str_mv eng
language eng
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 reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
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reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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