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dc.contributor.authorSantamaría Manrique, Javier
dc.contributor.authorHerreros, Jesús
dc.contributor.authorGarcía Vadillo, Ernesto
dc.contributor.authorCorrea García, Nekane
dc.date.accessioned2013-09-27T11:55:46Z
dc.date.available2013-09-27T11:55:46Z
dc.date.issued2013-01
dc.identifier.citationVehicle System Dynamics 51 : 54-73 (2013)es
dc.identifier.issn0042-3114
dc.identifier.urihttp://hdl.handle.net/10810/10718
dc.description.abstractThis paper sets out an optimum synthesis methodology for wheel profiles of railway vehicles in order to secure good dynamic behaviour with different track configurations. Specifically, the optimisation process has been applied to the case of rail wheelsets mounted on double gauge bogies, that move over two different gauges, which also have different types of rail: the Iberian gauge (1668 mm) and the UIC gauge (1435 mm). Optimisation is performed using Genetic Algorithms and traditional optimisation methods in a complementary way. The objective function used is based on an ideal equivalent conicity curve which ensures good stability on straight sections and also proper negotiation of curves. To this end the curve is constructed in such a way that it is constant with a low value for small lateral wheelset displacements (with regard to stability), and increases as the displacements increase (to facilitate negotiation of curved sections). Using this kind of ideal conicity curve also enables a wheel profile to be secured where the contact points have a larger distribution over the active contact areas, making wear more homogeneous and reducing stresses. The result is a wheel profile with a conicity that is closer to the target conicity for both gauges studied, producing better curve negotiation while maintaining good stability on straight sections of track. The paper shows the resultant wheel profile, the contact curves it produces, and a number of dynamic analyses demonstrating better dynamic behaviour of the synthesised wheel on curved sections with respect to the original wheel.es
dc.description.sponsorshipSpanish Research Ministry MICINN through contract TRA2010-18386 including the FEDER funds of the European Union. The Basque Government through IT-453-10 and Research Grant BFI08.172. UPV/EHU through the training and research unit UFI11/29.es
dc.language.isoenges
dc.publisherTaylor & Francises
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectwheel profile optimisationes
dc.subjectgenetic algorithmses
dc.subjectwheel-rail contactes
dc.subjectdouble gauge vehicleses
dc.titleDesign of an optimised wheel profile for rail vehicles operating on two track gaugeses
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holderThis is an Author's Accepted Manuscript of an article published in VEHICLE SYSTEM DYNAMICS, Vol. 51, Nº 1, pp. 54-73 on January 2013 [copyright Taylor & Francis], available online at: http://www.tandfonline.com/10.1080/00423114.2012.711478es
dc.relation.publisherversionhttp://www.tandfonline.com/10.1080/00423114.2012.711478es
dc.identifier.doi10.1080/00423114.2012.711478
dc.departamentoesIngeniería mecánicaes_ES
dc.departamentoeuIngeniaritza mekanikoaes_ES
dc.subject.categoriaAUTOMOTIVE ENGINEERING
dc.subject.categoriaSAFETY, RISK, RELIABILITY AND QUALITY
dc.subject.categoriaENGINEERING, MECHANICAL


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