Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000700009 |
Resumo: | The lack of lateral resistance in a curved railway track can produce misalignment problems due to the centrifugal forces when the trains pass through. Moreover, most of the times continuous welded rails (CWR) are used in nowadays railway tracks, which can induce the track buckling as a result of thermal loads caused by high temperature gradients. A new sleeper has been designed to provide higher lateral resistance of the track. A finite element model has been developed to analyze the lateral movements of an actual curved track subjected to lateral resistance problems. Then, variations on the finite element model have been made to study the response of the track when different sleepers are used. Thus, the performance of the different sleepers in the modeled track has been analyzed, resulting that the inclusion of the new sleeper in the track can improve the lateral resistance between 39 and 55 % with respect to a track with conventional sleepers made of wood or concrete. |
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Latin American journal of solids and structures (Online) |
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Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element modelsRailway engineeringlateral resistancecurved railway tracknew sleeper designfinite element modelThe lack of lateral resistance in a curved railway track can produce misalignment problems due to the centrifugal forces when the trains pass through. Moreover, most of the times continuous welded rails (CWR) are used in nowadays railway tracks, which can induce the track buckling as a result of thermal loads caused by high temperature gradients. A new sleeper has been designed to provide higher lateral resistance of the track. A finite element model has been developed to analyze the lateral movements of an actual curved track subjected to lateral resistance problems. Then, variations on the finite element model have been made to study the response of the track when different sleepers are used. Thus, the performance of the different sleepers in the modeled track has been analyzed, resulting that the inclusion of the new sleeper in the track can improve the lateral resistance between 39 and 55 % with respect to a track with conventional sleepers made of wood or concrete.Associação Brasileira de Ciências Mecânicas2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000700009Latin American Journal of Solids and Structures v.11 n.7 2014reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1679-78252014000700009info:eu-repo/semantics/openAccessMontalbán Domingo,LauraReal Herraiz,Julia I.Zamorano,ClaraReal Herraiz,Teresaeng2014-03-13T00:00:00Zoai:scielo:S1679-78252014000700009Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2014-03-13T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
title |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
spellingShingle |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models Montalbán Domingo,Laura Railway engineering lateral resistance curved railway track new sleeper design finite element model |
title_short |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
title_full |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
title_fullStr |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
title_full_unstemmed |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
title_sort |
Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models |
author |
Montalbán Domingo,Laura |
author_facet |
Montalbán Domingo,Laura Real Herraiz,Julia I. Zamorano,Clara Real Herraiz,Teresa |
author_role |
author |
author2 |
Real Herraiz,Julia I. Zamorano,Clara Real Herraiz,Teresa |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Montalbán Domingo,Laura Real Herraiz,Julia I. Zamorano,Clara Real Herraiz,Teresa |
dc.subject.por.fl_str_mv |
Railway engineering lateral resistance curved railway track new sleeper design finite element model |
topic |
Railway engineering lateral resistance curved railway track new sleeper design finite element model |
description |
The lack of lateral resistance in a curved railway track can produce misalignment problems due to the centrifugal forces when the trains pass through. Moreover, most of the times continuous welded rails (CWR) are used in nowadays railway tracks, which can induce the track buckling as a result of thermal loads caused by high temperature gradients. A new sleeper has been designed to provide higher lateral resistance of the track. A finite element model has been developed to analyze the lateral movements of an actual curved track subjected to lateral resistance problems. Then, variations on the finite element model have been made to study the response of the track when different sleepers are used. Thus, the performance of the different sleepers in the modeled track has been analyzed, resulting that the inclusion of the new sleeper in the track can improve the lateral resistance between 39 and 55 % with respect to a track with conventional sleepers made of wood or concrete. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000700009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000700009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-78252014000700009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.11 n.7 2014 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302887625752576 |