COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION
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/20879 |
Resumo: | Railway traffic is a big source of vibrations. Over the years, with higher freight capacity and speeds getting higher, excessive stresses are experienced by the subgrade. Then, stress waves propagate through the ground until buildings on the surroundings. This leads to considerable negative impacts on the neighborhood. On this context, this work is immersed in a broader scope of proposing an approach to create a model to simulate railway systems, with the main objective of predicting the vibration and stresses at the subgrade, in different situations, such as to predict the contact forces between the wheels and the rails. In this model, the dynamic characteristics of the vehicles and the contact between their wheels and the track are considered. The numerical model was solved using the software Giraffe. To simulate the traffic of a vehicle, a two-car train composition was modeled. One of the cars is loaded by an imposed torsion moment, applied on the axle of the wheels. A time-varying torsional moment was considered, so the simulation could reproduce an accelerating vehicle, the same vehicle in constant speed, as well as braking. The model, as it was proposed, represented the global mechanical behavior of the cars and it was possible to obtain the contact forces between wheels and a surface that represents the rails. |
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Revista Interdisciplinar de Pesquisa em Engenharia |
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COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTIONRailway. Contact. Finite Element. Giraffe.Railway traffic is a big source of vibrations. Over the years, with higher freight capacity and speeds getting higher, excessive stresses are experienced by the subgrade. Then, stress waves propagate through the ground until buildings on the surroundings. This leads to considerable negative impacts on the neighborhood. On this context, this work is immersed in a broader scope of proposing an approach to create a model to simulate railway systems, with the main objective of predicting the vibration and stresses at the subgrade, in different situations, such as to predict the contact forces between the wheels and the rails. In this model, the dynamic characteristics of the vehicles and the contact between their wheels and the track are considered. The numerical model was solved using the software Giraffe. To simulate the traffic of a vehicle, a two-car train composition was modeled. One of the cars is loaded by an imposed torsion moment, applied on the axle of the wheels. A time-varying torsional moment was considered, so the simulation could reproduce an accelerating vehicle, the same vehicle in constant speed, as well as braking. The model, as it was proposed, represented the global mechanical behavior of the cars and it was possible to obtain the contact forces between wheels and a surface that represents the rails.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2017-02-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/2087910.26512/ripe.v2i22.20879Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 22 (2016): NONLINEAR ANALISYS, STABILITY AND STRUCTURAL DYNAMICS; 274-288Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 22 (2016): NONLINEAR ANALISYS, STABILITY AND STRUCTURAL DYNAMICS; 274-2882447-6102reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBenghttps://periodicos.unb.br/index.php/ripe/article/view/20879/19249Copyright (c) 2018 Revista Interdisciplinar de Pesquisa em Engenharia - RIPEinfo:eu-repo/semantics/openAccessPereira, Thiago F. M.Gay Neto, Alfredo2019-05-23T17:55:38Zoai:ojs.pkp.sfu.ca:article/20879Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-05-23T17:55:38Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false |
dc.title.none.fl_str_mv |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
title |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
spellingShingle |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION Pereira, Thiago F. M. Railway. Contact. Finite Element. Giraffe. |
title_short |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
title_full |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
title_fullStr |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
title_full_unstemmed |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
title_sort |
COMPUTATIONAL MODEL TO EVALUATE ACTIONS IN WHEELRAIL CONTACT INTERACTION |
author |
Pereira, Thiago F. M. |
author_facet |
Pereira, Thiago F. M. Gay Neto, Alfredo |
author_role |
author |
author2 |
Gay Neto, Alfredo |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Pereira, Thiago F. M. Gay Neto, Alfredo |
dc.subject.por.fl_str_mv |
Railway. Contact. Finite Element. Giraffe. |
topic |
Railway. Contact. Finite Element. Giraffe. |
description |
Railway traffic is a big source of vibrations. Over the years, with higher freight capacity and speeds getting higher, excessive stresses are experienced by the subgrade. Then, stress waves propagate through the ground until buildings on the surroundings. This leads to considerable negative impacts on the neighborhood. On this context, this work is immersed in a broader scope of proposing an approach to create a model to simulate railway systems, with the main objective of predicting the vibration and stresses at the subgrade, in different situations, such as to predict the contact forces between the wheels and the rails. In this model, the dynamic characteristics of the vehicles and the contact between their wheels and the track are considered. The numerical model was solved using the software Giraffe. To simulate the traffic of a vehicle, a two-car train composition was modeled. One of the cars is loaded by an imposed torsion moment, applied on the axle of the wheels. A time-varying torsional moment was considered, so the simulation could reproduce an accelerating vehicle, the same vehicle in constant speed, as well as braking. The model, as it was proposed, represented the global mechanical behavior of the cars and it was possible to obtain the contact forces between wheels and a surface that represents the rails. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-02-08 |
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/20879 10.26512/ripe.v2i22.20879 |
url |
https://periodicos.unb.br/index.php/ripe/article/view/20879 |
identifier_str_mv |
10.26512/ripe.v2i22.20879 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/20879/19249 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 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. 22 (2016): NONLINEAR ANALISYS, STABILITY AND STRUCTURAL DYNAMICS; 274-288 Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 22 (2016): NONLINEAR ANALISYS, STABILITY AND STRUCTURAL DYNAMICS; 274-288 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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1798315225349357568 |