dc.contributor.author | Correa García, Nekane ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | García Vadillo, Ernesto ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Santamaría Manrique, Javier ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Gómez López, Josu | |
dc.date.accessioned | 2012-11-23T13:08:45Z | |
dc.date.available | 2012-11-23T13:08:45Z | |
dc.date.issued | 2012-04 | |
dc.identifier.citation | Journal of Sound and Vibration 331(8) : 1844-1858 (2012) | es |
dc.identifier.issn | 0022-460X | |
dc.identifier.uri | http://hdl.handle.net/10810/9104 | |
dc.description.abstract | This 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.sponsorship | Spanish 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.iso | eng | es |
dc.publisher | Elsevier | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | wheel | es |
dc.subject | rail | es |
dc.subject | track | es |
dc.subject | welding defects, | es |
dc.subject | rational fraction polynomials | es |
dc.title | A rational fraction polynomials model to study vertical dynamic wheel-rail interaction | es |
dc.type | info:eu-repo/semantics/article | es |
dc.rights.holder | This 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.2011.12.012 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.jsv.2011.12.012 | es |
dc.departamentoes | Ingeniería mecánica | es_ES |
dc.departamentoeu | Ingeniaritza mekanikoa | es_ES |
dc.subject.categoria | ACOUSTICS | |
dc.subject.categoria | PHYSICS, CONDENSED MATTER | |
dc.subject.categoria | MECHANICS OF MATERIALS | |
dc.subject.categoria | ENGINEERING, MECHANICAL | |