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dc.contributor.authorCorrea García, Nekane ORCID
dc.contributor.authorGarcía Vadillo, Ernesto ORCID
dc.contributor.authorSantamaría Manrique, Javier
dc.contributor.authorGómez López, Josu
dc.date.accessioned2012-11-23T13:08:45Z
dc.date.available2012-11-23T13:08:45Z
dc.date.issued2012-04
dc.identifier.citationJournal of Sound and Vibration 331(8) : 1844-1858 (2012)es
dc.identifier.issn0022-460X
dc.identifier.urihttp://hdl.handle.net/10810/9104
dc.description.abstractThis paper presents a model designed to study vertical interactions between wheel and rail when the wheel moves over a rail welding. The model focuses on the spatial domain, and is drawn up in a simple fashion from track receptances. The paper obtains the receptances from a full track model in the frequency domain already developed by the authors, which includes deformation of the rail section and propagation of bending, elongation and torsional waves along an infinite track. Transformation between domains was secured by applying a modified rational fraction polynomials method. This obtains a track model with very few degrees of freedom, and thus with minimum time consumption for integration, with a good match to the original model over a sufficiently broad range of frequencies. Wheel-rail interaction is modelled on a non-linear Hertzian spring, and consideration is given to parametric excitation caused by the wheel moving over a sleeper, since this is a moving wheel model and not a moving irregularity model. The model is used to study the dynamic loads and displacements emerging at the wheel-rail contact passing over a welding defect at different speeds.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.es
dc.language.isoenges
dc.publisherElsevieres
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectwheeles
dc.subjectrailes
dc.subjecttrackes
dc.subjectwelding defects,es
dc.subjectrational fraction polynomialses
dc.titleA rational fraction polynomials model to study vertical dynamic wheel-rail interactiones
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holderThis is an electronic version of an article published in Journal of Sound and Vibration, Vol. 331, pp. 1844-1858. 2012. Changes resulting from the publishing process, such as editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. JOURNAL OF SOUND AND VIBRATION is available online and the final version can be obtained at: http://dx.doi.org/10.1016/j.jsv.2011.12.012 http://www.sciencedirect.com/science/article/pii/S0022460X11009400 DOI: 10.1016/j.jsv.2011.12.012es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jsv.2011.12.012es
dc.departamentoesIngeniería mecánicaes_ES
dc.departamentoeuIngeniaritza mekanikoaes_ES
dc.subject.categoriaACOUSTICS
dc.subject.categoriaPHYSICS, CONDENSED MATTER
dc.subject.categoriaMECHANICS OF MATERIALS
dc.subject.categoriaENGINEERING, MECHANICAL


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