Experimental identification of GHM and ADF parameters for viscoelastic damping modeling

Detalhes bibliográficos
Autor(a) principal: C. M. A. Vasques
Data de Publicação: 2006
Outros Autores: R. A. S. Moreira, J. Dias Rodrigues
Tipo de documento: Livro
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/69578
Resumo: The implementation of the Golla-Hughes-McTavish (GHM) and Anelastic Displacement Fields (ADF) models in a general finite element (FE) model with viscoelastic damping is presented and discussed in this paper. Additionally, a direct frequency analysis (DFA) is also described and employed. A methodology to identify the complex shear modulus of the viscoelastic materials is described. The identified complex shear modulus of the viscoelastic material 3M ISD112 is curve-fitted in order to obtain the modeling parameters of the GHM and ADF models. A sandwich plate with a viscoelastic core and elastic skins is analyzed. Measured and predicted frequency response functions (FRFs) are compared with the purpose of assessing the performance of the presented damping models. The analysis allows to asses the validity of the methodology to determine the frequency dependent complex modulus, the GHM and ADF parameters identification and the outcomes and drawbacks of the DFA, GHM and ADF viscoelastic damping modeling strategies.
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spelling Experimental identification of GHM and ADF parameters for viscoelastic damping modelingEngenharia mecânica, Engenharia mecânicaMechanical engineering, Mechanical engineeringThe implementation of the Golla-Hughes-McTavish (GHM) and Anelastic Displacement Fields (ADF) models in a general finite element (FE) model with viscoelastic damping is presented and discussed in this paper. Additionally, a direct frequency analysis (DFA) is also described and employed. A methodology to identify the complex shear modulus of the viscoelastic materials is described. The identified complex shear modulus of the viscoelastic material 3M ISD112 is curve-fitted in order to obtain the modeling parameters of the GHM and ADF models. A sandwich plate with a viscoelastic core and elastic skins is analyzed. Measured and predicted frequency response functions (FRFs) are compared with the purpose of assessing the performance of the presented damping models. The analysis allows to asses the validity of the methodology to determine the frequency dependent complex modulus, the GHM and ADF parameters identification and the outcomes and drawbacks of the DFA, GHM and ADF viscoelastic damping modeling strategies.20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookapplication/pdfhttps://hdl.handle.net/10216/69578engC. M. A. VasquesR. A. S. MoreiraJ. Dias Rodriguesinfo: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:RCAAP2023-11-29T15:15:39Zoai:repositorio-aberto.up.pt:10216/69578Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:19:14.458299Repositório 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 identification of GHM and ADF parameters for viscoelastic damping modeling
title Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
spellingShingle Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
C. M. A. Vasques
Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
title_short Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
title_full Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
title_fullStr Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
title_full_unstemmed Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
title_sort Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
author C. M. A. Vasques
author_facet C. M. A. Vasques
R. A. S. Moreira
J. Dias Rodrigues
author_role author
author2 R. A. S. Moreira
J. Dias Rodrigues
author2_role author
author
dc.contributor.author.fl_str_mv C. M. A. Vasques
R. A. S. Moreira
J. Dias Rodrigues
dc.subject.por.fl_str_mv Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
topic Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
description The implementation of the Golla-Hughes-McTavish (GHM) and Anelastic Displacement Fields (ADF) models in a general finite element (FE) model with viscoelastic damping is presented and discussed in this paper. Additionally, a direct frequency analysis (DFA) is also described and employed. A methodology to identify the complex shear modulus of the viscoelastic materials is described. The identified complex shear modulus of the viscoelastic material 3M ISD112 is curve-fitted in order to obtain the modeling parameters of the GHM and ADF models. A sandwich plate with a viscoelastic core and elastic skins is analyzed. Measured and predicted frequency response functions (FRFs) are compared with the purpose of assessing the performance of the presented damping models. The analysis allows to asses the validity of the methodology to determine the frequency dependent complex modulus, the GHM and ADF parameters identification and the outcomes and drawbacks of the DFA, GHM and ADF viscoelastic damping modeling strategies.
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/book
format book
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10216/69578
url https://hdl.handle.net/10216/69578
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str 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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