A linear non-Hertzian unsteady tangential wheel-rail contact model

[EN] The increase in computational capacity has considerably reduced the use of linear models for wheel/rail tangential contact, being currently replaced by theories that adopt non-linear formulations able to address the most complex conditions realistically. However, linear formulations are difficu...

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Authors: Baeza González, Luis Miguel|||0000-0002-3815-8706, Giner Navarro, Juan|||0000-0002-0513-3625, Bruni, Stefano, Liu, Binbin
Format: article
Publication Date:2023
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/200856
Online Access:https://riunet.upv.es/handle/10251/200856
Access Level:Open access
Keyword:Wheel-rail contact
Non-Hertzian contact
Rolling contact
Linear contact
Rolling noise
Non-steady-state contact
INGENIERIA MECANICA
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repository_id_str
spelling A linear non-Hertzian unsteady tangential wheel-rail contact modelBaeza González, Luis Miguel|||0000-0002-3815-8706Giner Navarro, Juan|||0000-0002-0513-3625Bruni, StefanoLiu, BinbinWheel-rail contactNon-Hertzian contactRolling contactLinear contactRolling noiseNon-steady-state contactINGENIERIA MECANICA[EN] The increase in computational capacity has considerably reduced the use of linear models for wheel/rail tangential contact, being currently replaced by theories that adopt non-linear formulations able to address the most complex conditions realistically. However, linear formulations are difficult to replace in certain applications such as acoustic problem modelling, in which case a linear formulation of the track-contact-vehicle system is needed. The vibration that appears in this type of problem covers a wide range of audible frequencies, so, in addition to linearity, these theories are required to be non-stationary. The literature in contact mechanics gives response to this problem through models that consider low creepage levels, but it remains to cover other conditions in which the mean creepage is not small, such as when a railway vehicle negotiates a curve. This work presents a new theory of unsteady linear tangential rolling contact for non-Hertzian areas that considers kinematics as the sum of a constant creepage resulting from large stationary forces (such as those that occur when the vehicle negotiates a curve with constant radius) and small variable creepage due to a high-frequency phenomenon (e.g. the dynamic interaction between the vehicle and the track). The model is based on the Variational Theory (i.e. the CONTACT method for tangential problems), from which a linear formulation with variable creepage is deduced. According to this formulation, the non-steady state contact problem can be solved for any shape of the wheel/rail contact region, requiring a much smaller computational effort than the general unsteady CONTACT approach. The results show a satisfactory agreement of the proposed model to the unsteady CONTACT version, hence confirming the soundness of the proposed contact model.The first and third authors acknowledge the financial support through the grants PID2020-118013RB-C21 (funded by MCIN/AEI/10.13039/501100011033) and PROMETEO/2021/046 (funded by Generalitat Valenciana).ElsevierDepartamento de Ingeniería Mecánica y de MaterialesInstituto Universitario de Investigación Concertado de Ingeniería Mecánica y BiomecánicaEscuela Técnica Superior de Ingeniería IndustrialGeneralitat ValencianaAgencia Estatal de InvestigaciónUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20232023-03-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/200856reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-118013RB-C21 DESARROLLO DE MODELOS INTEGRALES PARA LA SIMULACION DE LA INTERACCION DINAMICA VEHICULO-DESVIOGeneralitat Valenciana https://doi.org/10.13039/501100003359 PROMETEO%2F2021%2F046open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2008562026-06-13T07:49:27Z
dc.title.none.fl_str_mv A linear non-Hertzian unsteady tangential wheel-rail contact model
title A linear non-Hertzian unsteady tangential wheel-rail contact model
spellingShingle A linear non-Hertzian unsteady tangential wheel-rail contact model
Baeza González, Luis Miguel|||0000-0002-3815-8706
Wheel-rail contact
Non-Hertzian contact
Rolling contact
Linear contact
Rolling noise
Non-steady-state contact
INGENIERIA MECANICA
title_short A linear non-Hertzian unsteady tangential wheel-rail contact model
title_full A linear non-Hertzian unsteady tangential wheel-rail contact model
title_fullStr A linear non-Hertzian unsteady tangential wheel-rail contact model
title_full_unstemmed A linear non-Hertzian unsteady tangential wheel-rail contact model
title_sort A linear non-Hertzian unsteady tangential wheel-rail contact model
dc.creator.none.fl_str_mv Baeza González, Luis Miguel|||0000-0002-3815-8706
Giner Navarro, Juan|||0000-0002-0513-3625
Bruni, Stefano
Liu, Binbin
author Baeza González, Luis Miguel|||0000-0002-3815-8706
author_facet Baeza González, Luis Miguel|||0000-0002-3815-8706
Giner Navarro, Juan|||0000-0002-0513-3625
Bruni, Stefano
Liu, Binbin
author_role author
author2 Giner Navarro, Juan|||0000-0002-0513-3625
Bruni, Stefano
Liu, Binbin
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Mecánica y de Materiales
Instituto Universitario de Investigación Concertado de Ingeniería Mecánica y Biomecánica
Escuela Técnica Superior de Ingeniería Industrial
Generalitat Valenciana
Agencia Estatal de Investigación
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Wheel-rail contact
Non-Hertzian contact
Rolling contact
Linear contact
Rolling noise
Non-steady-state contact
INGENIERIA MECANICA
topic Wheel-rail contact
Non-Hertzian contact
Rolling contact
Linear contact
Rolling noise
Non-steady-state contact
INGENIERIA MECANICA
description [EN] The increase in computational capacity has considerably reduced the use of linear models for wheel/rail tangential contact, being currently replaced by theories that adopt non-linear formulations able to address the most complex conditions realistically. However, linear formulations are difficult to replace in certain applications such as acoustic problem modelling, in which case a linear formulation of the track-contact-vehicle system is needed. The vibration that appears in this type of problem covers a wide range of audible frequencies, so, in addition to linearity, these theories are required to be non-stationary. The literature in contact mechanics gives response to this problem through models that consider low creepage levels, but it remains to cover other conditions in which the mean creepage is not small, such as when a railway vehicle negotiates a curve. This work presents a new theory of unsteady linear tangential rolling contact for non-Hertzian areas that considers kinematics as the sum of a constant creepage resulting from large stationary forces (such as those that occur when the vehicle negotiates a curve with constant radius) and small variable creepage due to a high-frequency phenomenon (e.g. the dynamic interaction between the vehicle and the track). The model is based on the Variational Theory (i.e. the CONTACT method for tangential problems), from which a linear formulation with variable creepage is deduced. According to this formulation, the non-steady state contact problem can be solved for any shape of the wheel/rail contact region, requiring a much smaller computational effort than the general unsteady CONTACT approach. The results show a satisfactory agreement of the proposed model to the unsteady CONTACT version, hence confirming the soundness of the proposed contact model.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-03-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/200856
url https://riunet.upv.es/handle/10251/200856
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-118013RB-C21 DESARROLLO DE MODELOS INTEGRALES PARA LA SIMULACION DE LA INTERACCION DINAMICA VEHICULO-DESVIO
Generalitat Valenciana https://doi.org/10.13039/501100003359 PROMETEO%2F2021%2F046
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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