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Study of the Falling Friction Effect on Rolling Contact Parameters

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Study of the Falling Friction Effect on Rolling Contact Parameters

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dc.contributor.author Giner Navarro, Juan es_ES
dc.contributor.author Baeza González, Luis Miguel es_ES
dc.contributor.author Vila Tortosa, María Paloma es_ES
dc.contributor.author Alonso Pazos, Asier es_ES
dc.date.accessioned 2020-02-20T21:00:56Z
dc.date.available 2020-02-20T21:00:56Z
dc.date.issued 2017 es_ES
dc.identifier.issn 1023-8883 es_ES
dc.identifier.uri http://hdl.handle.net/10251/137414
dc.description.abstract [EN] The existence of a wheel rail friction coefficient that depends on the slip velocity has been associated in the literature with important railway problems like the curving squeal and certain corrugation problems in rails. Rolling contact models that take into account this effect were carried out through the so-called Exact Theories adopting an exact elastic model of the solids in contact, and Simplified Theories which assume simplified elastic models such as Winkler. The former ones, based on Kalker s Variational Theory, give rise to numerical problems; the latter ones need to adopt hypotheses that significantly deviate from actual conditions, leading to unrealistic solutions of the contact problem. In this paper, a methodology based on Kalker s Variational Theory is presented, in which a local slip velocity-dependent friction law is considered. A formulation to get steady-state conditions of rolling contact by means of regularisation of the Coulomb s law is proposed. The model allows establishing relationships in order to estimate the global properties (creepage velocities vs. total longitudinal forces) through local properties (local slip velocity vs. coefficient of friction) or vice versa. The proposed model shows a good agreement with experimental tests while solving the numerical problems previously mentioned. es_ES
dc.description.sponsorship The authors acknowledge the financial contribution of the Spanish Ministry of Economy and Competitiveness through the Project TRA2013-45596-C2-1-R. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Tribology Letters es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Rolling contact es_ES
dc.subject Falling friction coefficient es_ES
dc.subject Coulomb's law regularisation es_ES
dc.subject.classification INGENIERIA MECANICA es_ES
dc.title Study of the Falling Friction Effect on Rolling Contact Parameters es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s11249-016-0810-8 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TRA2013-45596-C2-1-R/ES/DESARROLLO DE NUEVAS TECNOLOGIAS DESTINADAS A REDUCIR EL IMPACTO ACUSTICO DEL TRANSPORTE FERROVIARIO EN ENTORNOS URBANOS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Giner Navarro, J.; Baeza González, LM.; Vila Tortosa, MP.; Alonso Pazos, A. (2017). Study of the Falling Friction Effect on Rolling Contact Parameters. Tribology Letters. 65(1). https://doi.org/10.1007/s11249-016-0810-8 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s11249-016-0810-8 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 65 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\323986 es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES
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