ACOPLAMENTO MEF-MDF PARA SOLUÇÃO DE PROBLEMAS VIBROACÚSTICOS 2D
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
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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Revista Interdisciplinar de Pesquisa em Engenharia |
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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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1798315226162003968 |