Influence of the operational conditions on static and dynamic stiffness of rail pads
The track has a crucial role in the performance of the rail network as it provides support and guidance to the rolling stock. During train operation, the vehicle-track interaction generates high impact loads and fatigue, which lead to degradation of vehicle components and rail infrastructure. These...
| Autores: | , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/30908 |
| Acesso em linha: | https://hdl.handle.net/10902/30908 |
| Access Level: | acceso abierto |
| Palavra-chave: | Rail pad Dynamic stiffness Temperature Axel load Toe load Frequency |
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Influence of the operational conditions on static and dynamic stiffness of rail padsSainz-Aja Guerra, José Adolfo|||0000-0003-3187-4790Carrascal Vaquero, Isidro Alfonso|||0000-0002-7045-1267Ferreño Blanco, Diego|||0000-0003-3533-1881Pombo, JoaoCasado del Prado, José AntonioDiego Cavia, Soraya|||0000-0003-4518-7449Rail padDynamic stiffnessTemperatureAxel loadToe loadFrequencyThe track has a crucial role in the performance of the rail network as it provides support and guidance to the rolling stock. During train operation, the vehicle-track interaction generates high impact loads and fatigue, which lead to degradation of vehicle components and rail infrastructure. These loads tend to increase the maintenance needs and, consequently, the life-cycle-costs of the rail assets. In order to minimize these consequences, rail pads are generally used between the rails and the sleepers in order to provide flexibility to the track and to damp the transmission of noise and vibrations. In ballasted tracks, this flexibility is a combination of the mechanical properties of the ballast and the rail pads. However, in slab tracks, the flexibility of the infrastructure is almost exclusively dependant on the rail pads. These materials exhibit non-linear, dissipative characteristics that are affected by the service conditions such as temperature, frequency, toe load and axle load. This work aims to investigate experimentally different pad materials widely used in the rail industry in order to characterize the influence of these factors on the mechanical characteristics of the rail supporting elements. The detailed characterization of the rail pads enables not only better understanding of their performance in realistic service conditions, but also provides good perspectives for use of these well quantified mechanical properties in studying the vehicle-track dynamic behaviour in different scenarios and predicting the long-term performance of the infrastructure components.This work was supported by FCT, through IDMEC, under LAETA, project UIDB/50022/2020.ElsevierUniversidad de Cantabria20202020-09-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/30908Mechanics of Materials, 2020, 148, 103505reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/309082026-06-02T12:39:31Z |
| dc.title.none.fl_str_mv |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| title |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| spellingShingle |
Influence of the operational conditions on static and dynamic stiffness of rail pads Sainz-Aja Guerra, José Adolfo|||0000-0003-3187-4790 Rail pad Dynamic stiffness Temperature Axel load Toe load Frequency |
| title_short |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| title_full |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| title_fullStr |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| title_full_unstemmed |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| title_sort |
Influence of the operational conditions on static and dynamic stiffness of rail pads |
| dc.creator.none.fl_str_mv |
Sainz-Aja Guerra, José Adolfo|||0000-0003-3187-4790 Carrascal Vaquero, Isidro Alfonso|||0000-0002-7045-1267 Ferreño Blanco, Diego|||0000-0003-3533-1881 Pombo, Joao Casado del Prado, José Antonio Diego Cavia, Soraya|||0000-0003-4518-7449 |
| author |
Sainz-Aja Guerra, José Adolfo|||0000-0003-3187-4790 |
| author_facet |
Sainz-Aja Guerra, José Adolfo|||0000-0003-3187-4790 Carrascal Vaquero, Isidro Alfonso|||0000-0002-7045-1267 Ferreño Blanco, Diego|||0000-0003-3533-1881 Pombo, Joao Casado del Prado, José Antonio Diego Cavia, Soraya|||0000-0003-4518-7449 |
| author_role |
author |
| author2 |
Carrascal Vaquero, Isidro Alfonso|||0000-0002-7045-1267 Ferreño Blanco, Diego|||0000-0003-3533-1881 Pombo, Joao Casado del Prado, José Antonio Diego Cavia, Soraya|||0000-0003-4518-7449 |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad de Cantabria |
| dc.subject.none.fl_str_mv |
Rail pad Dynamic stiffness Temperature Axel load Toe load Frequency |
| topic |
Rail pad Dynamic stiffness Temperature Axel load Toe load Frequency |
| description |
The track has a crucial role in the performance of the rail network as it provides support and guidance to the rolling stock. During train operation, the vehicle-track interaction generates high impact loads and fatigue, which lead to degradation of vehicle components and rail infrastructure. These loads tend to increase the maintenance needs and, consequently, the life-cycle-costs of the rail assets. In order to minimize these consequences, rail pads are generally used between the rails and the sleepers in order to provide flexibility to the track and to damp the transmission of noise and vibrations. In ballasted tracks, this flexibility is a combination of the mechanical properties of the ballast and the rail pads. However, in slab tracks, the flexibility of the infrastructure is almost exclusively dependant on the rail pads. These materials exhibit non-linear, dissipative characteristics that are affected by the service conditions such as temperature, frequency, toe load and axle load. This work aims to investigate experimentally different pad materials widely used in the rail industry in order to characterize the influence of these factors on the mechanical characteristics of the rail supporting elements. The detailed characterization of the rail pads enables not only better understanding of their performance in realistic service conditions, but also provides good perspectives for use of these well quantified mechanical properties in studying the vehicle-track dynamic behaviour in different scenarios and predicting the long-term performance of the infrastructure components. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020 2020-09-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 NA http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10902/30908 |
| url |
https://hdl.handle.net/10902/30908 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
Mechanics of Materials, 2020, 148, 103505 reponame:UCrea Repositorio Abierto de la Universidad de Cantabria instname:Universidad de Cantabria (UC) |
| instname_str |
Universidad de Cantabria (UC) |
| reponame_str |
UCrea Repositorio Abierto de la Universidad de Cantabria |
| collection |
UCrea Repositorio Abierto de la Universidad de Cantabria |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
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1869421056454819840 |
| score |
15.301603 |