APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Interdisciplinar de Pesquisa em Engenharia |
Texto Completo: | https://periodicos.unb.br/index.php/ripe/article/view/21386 |
Resumo: | This work is placed on the scope of characterization and modeling of structures and the central objective is to establish a computer code capable to provide models for structures of interest from practical experimentation, to be used to refine the computer models a posteriori. To realize that project, the experimental modal analysis was applied in the Eigensystem Realization Algorithm ”“ ERA. As well as most of the techniques of identification of dynamic of systems, the ERA also creates the compute modes, being necessary the application of procedures for filtering the real modes before the noises and/or computers modes. In this work, two techniques for the distinction were used: Modal Amplitude Coherence (MAC) and Modal Singular Value (MSV). Beside this, a novel approach to help interpret and filter based in MSV deviation was proposed and tested, producing good results. To achieve this, a computer code that receives experimental data and returns the global properties of the system, i.e., the natural frequencies, the damping factors and the mode shapes was developed. The preliminary results, developed in the know structure, indicate the code has the potential to handle with complex geometries. |
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APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURESERA. Composite structures. Modal analysis. Identification of global properties.This work is placed on the scope of characterization and modeling of structures and the central objective is to establish a computer code capable to provide models for structures of interest from practical experimentation, to be used to refine the computer models a posteriori. To realize that project, the experimental modal analysis was applied in the Eigensystem Realization Algorithm ”“ ERA. As well as most of the techniques of identification of dynamic of systems, the ERA also creates the compute modes, being necessary the application of procedures for filtering the real modes before the noises and/or computers modes. In this work, two techniques for the distinction were used: Modal Amplitude Coherence (MAC) and Modal Singular Value (MSV). Beside this, a novel approach to help interpret and filter based in MSV deviation was proposed and tested, producing good results. To achieve this, a computer code that receives experimental data and returns the global properties of the system, i.e., the natural frequencies, the damping factors and the mode shapes was developed. The preliminary results, developed in the know structure, indicate the code has the potential to handle with complex geometries.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2017-01-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/2138610.26512/ripe.v2i15.21386Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 157-174Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 157-1742447-6102reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBenghttps://periodicos.unb.br/index.php/ripe/article/view/21386/19729Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPEinfo:eu-repo/semantics/openAccessSilva, Lorraine AparecidaZambolini-Vicente, Bruno Gabriel Gustavo Leonardo ZamboliniLima, Antônio Marcos Gonçalves de2019-06-16T02:53:15Zoai:ojs.pkp.sfu.ca:article/21386Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-06-16T02:53:15Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false |
dc.title.none.fl_str_mv |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
title |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
spellingShingle |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES Silva, Lorraine Aparecida ERA. Composite structures. Modal analysis. Identification of global properties. |
title_short |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
title_full |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
title_fullStr |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
title_full_unstemmed |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
title_sort |
APPLICATION OF ERA'S METHOD FOR THE EXPERIMENTAL MODAL ANALYSIS OF COMPOSITE STRUCTURES |
author |
Silva, Lorraine Aparecida |
author_facet |
Silva, Lorraine Aparecida Zambolini-Vicente, Bruno Gabriel Gustavo Leonardo Zambolini Lima, Antônio Marcos Gonçalves de |
author_role |
author |
author2 |
Zambolini-Vicente, Bruno Gabriel Gustavo Leonardo Zambolini Lima, Antônio Marcos Gonçalves de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Lorraine Aparecida Zambolini-Vicente, Bruno Gabriel Gustavo Leonardo Zambolini Lima, Antônio Marcos Gonçalves de |
dc.subject.por.fl_str_mv |
ERA. Composite structures. Modal analysis. Identification of global properties. |
topic |
ERA. Composite structures. Modal analysis. Identification of global properties. |
description |
This work is placed on the scope of characterization and modeling of structures and the central objective is to establish a computer code capable to provide models for structures of interest from practical experimentation, to be used to refine the computer models a posteriori. To realize that project, the experimental modal analysis was applied in the Eigensystem Realization Algorithm ”“ ERA. As well as most of the techniques of identification of dynamic of systems, the ERA also creates the compute modes, being necessary the application of procedures for filtering the real modes before the noises and/or computers modes. In this work, two techniques for the distinction were used: Modal Amplitude Coherence (MAC) and Modal Singular Value (MSV). Beside this, a novel approach to help interpret and filter based in MSV deviation was proposed and tested, producing good results. To achieve this, a computer code that receives experimental data and returns the global properties of the system, i.e., the natural frequencies, the damping factors and the mode shapes was developed. The preliminary results, developed in the know structure, indicate the code has the potential to handle with complex geometries. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21386 10.26512/ripe.v2i15.21386 |
url |
https://periodicos.unb.br/index.php/ripe/article/view/21386 |
identifier_str_mv |
10.26512/ripe.v2i15.21386 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21386/19729 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
dc.source.none.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 157-174 Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 157-174 2447-6102 reponame:Revista Interdisciplinar de Pesquisa em Engenharia instname:Universidade de Brasília (UnB) instacron:UNB |
instname_str |
Universidade de Brasília (UnB) |
instacron_str |
UNB |
institution |
UNB |
reponame_str |
Revista Interdisciplinar de Pesquisa em Engenharia |
collection |
Revista Interdisciplinar de Pesquisa em Engenharia |
repository.name.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB) |
repository.mail.fl_str_mv |
anflor@unb.br |
_version_ |
1798315226150469632 |