ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D

Detalhes bibliográficos
Autor(a) principal: Burgos, Renan Godoy
Data de Publicação: 2017
Outros Autores: Oliveira, Sérgio Luís de, Carvalho, Bernardo Lima, Ribeiro, Paulo Marcelo Vieira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Interdisciplinar de Pesquisa em Engenharia
Texto Completo: https://periodicos.unb.br/index.php/ripe/article/view/21413
Resumo: Problems related to Fluid-Structure Interaction (IFE) are present in many practical cases in Engineering. In this sense, dams reservoirs, sluices, navigation channels and columns of offshore platforms and wind turbines are some examples. The effect generated by the fluid over the structure has a key importance, because it changes its behavior and adds other forces, and so it’s indispensable an analysis of the coupled system in order to improve the development of projects. Nowadays, because of the progress in computer industry, the numerical and computational tools are fairly efficient means to perform these evaluations. Among the most used numerical methods, there are the Finite Differences Method (FDM), the Finite Element Method (FEM) and the Finite Volume Method (FVM). This paper presents a code developed with FEM-FDM coupling for the solution of the interaction of an acoustic cavity and a flexible environment (elastic). The structural domain, which is ruled by the 2D elasticity equations, is evaluated using Constant Strain Triangle (CST) finite elements, while the fluid, ruled by Helmholtz equation, is evaluated through FDM. The code results are validated based in analytical solutions available in the literature, presenting negligible errors when used a fair sized mesh and it also has a viable processing time that makes the program usable.
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spelling ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2DFluid-Structure Interaction. Modal Analysis. Finite Elements. Finite Differences. Vibroacoustic.Problems related to Fluid-Structure Interaction (IFE) are present in many practical cases in Engineering. In this sense, dams reservoirs, sluices, navigation channels and columns of offshore platforms and wind turbines are some examples. The effect generated by the fluid over the structure has a key importance, because it changes its behavior and adds other forces, and so it’s indispensable an analysis of the coupled system in order to improve the development of projects. Nowadays, because of the progress in computer industry, the numerical and computational tools are fairly efficient means to perform these evaluations. Among the most used numerical methods, there are the Finite Differences Method (FDM), the Finite Element Method (FEM) and the Finite Volume Method (FVM). This paper presents a code developed with FEM-FDM coupling for the solution of the interaction of an acoustic cavity and a flexible environment (elastic). The structural domain, which is ruled by the 2D elasticity equations, is evaluated using Constant Strain Triangle (CST) finite elements, while the fluid, ruled by Helmholtz equation, is evaluated through FDM. The code results are validated based in analytical solutions available in the literature, presenting negligible errors when used a fair sized mesh and it also has a viable processing time that makes the program usable.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2017-08-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/2141310.26512/ripe.v2i35.21413Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 35 (2016): FLUID STRUCTURE INTERACTION INNOVATE METHODS AND PHASE FIELD MODELS NUMERICAL; 19-40Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 35 (2016): FLUID STRUCTURE INTERACTION INNOVATE METHODS AND PHASE FIELD MODELS NUMERICAL; 19-402447-6102reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBporhttps://periodicos.unb.br/index.php/ripe/article/view/21413/19744Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPEinfo:eu-repo/semantics/openAccessBurgos, Renan GodoyOliveira, Sérgio Luís deCarvalho, Bernardo LimaRibeiro, Paulo Marcelo Vieira2019-05-23T17:37:59Zoai:ojs.pkp.sfu.ca:article/21413Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-05-23T17:37:59Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
title ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
spellingShingle ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
Burgos, Renan Godoy
Fluid-Structure Interaction. Modal Analysis. Finite Elements. Finite Differences. Vibroacoustic.
title_short ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
title_full ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
title_fullStr ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
title_full_unstemmed ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
title_sort ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
author Burgos, Renan Godoy
author_facet Burgos, Renan Godoy
Oliveira, Sérgio Luís de
Carvalho, Bernardo Lima
Ribeiro, Paulo Marcelo Vieira
author_role author
author2 Oliveira, Sérgio Luís de
Carvalho, Bernardo Lima
Ribeiro, Paulo Marcelo Vieira
author2_role author
author
author
dc.contributor.author.fl_str_mv Burgos, Renan Godoy
Oliveira, Sérgio Luís de
Carvalho, Bernardo Lima
Ribeiro, Paulo Marcelo Vieira
dc.subject.por.fl_str_mv Fluid-Structure Interaction. Modal Analysis. Finite Elements. Finite Differences. Vibroacoustic.
topic Fluid-Structure Interaction. Modal Analysis. Finite Elements. Finite Differences. Vibroacoustic.
description Problems related to Fluid-Structure Interaction (IFE) are present in many practical cases in Engineering. In this sense, dams reservoirs, sluices, navigation channels and columns of offshore platforms and wind turbines are some examples. The effect generated by the fluid over the structure has a key importance, because it changes its behavior and adds other forces, and so it’s indispensable an analysis of the coupled system in order to improve the development of projects. Nowadays, because of the progress in computer industry, the numerical and computational tools are fairly efficient means to perform these evaluations. Among the most used numerical methods, there are the Finite Differences Method (FDM), the Finite Element Method (FEM) and the Finite Volume Method (FVM). This paper presents a code developed with FEM-FDM coupling for the solution of the interaction of an acoustic cavity and a flexible environment (elastic). The structural domain, which is ruled by the 2D elasticity equations, is evaluated using Constant Strain Triangle (CST) finite elements, while the fluid, ruled by Helmholtz equation, is evaluated through FDM. The code results are validated based in analytical solutions available in the literature, presenting negligible errors when used a fair sized mesh and it also has a viable processing time that makes the program usable.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-22
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/21413
10.26512/ripe.v2i35.21413
url https://periodicos.unb.br/index.php/ripe/article/view/21413
identifier_str_mv 10.26512/ripe.v2i35.21413
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.unb.br/index.php/ripe/article/view/21413/19744
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. 35 (2016): FLUID STRUCTURE INTERACTION INNOVATE METHODS AND PHASE FIELD MODELS NUMERICAL; 19-40
Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 35 (2016): FLUID STRUCTURE INTERACTION INNOVATE METHODS AND PHASE FIELD MODELS NUMERICAL; 19-40
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
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