A semi-analytical numerical method for modelling the normal wheel–rail contact
| Autor: | Qazi, Aquib, Yin, Honoré, Sebès, Michel, Chollet, Hugues, Pozzolini, Cédric |
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| Přispěvatelé: | Génie des Réseaux de Transport Terrestres et Informatique Avancée (COSYS-GRETTIA ), Université Gustave Eiffel, Laboratoire Navier (NAVIER UMR 8205), École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel, ESI Group (ESI Group) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Vehicle System Dynamics Vehicle System Dynamics, Taylor & Francis, 2020, pp.1-19. ⟨10.1080/00423114.2020.1854319⟩ |
| ISSN: | 0042-3114 1744-5159 |
| DOI: | 10.1080/00423114.2020.1854319⟩ |
| Popis: | International audience; A new semi-analytical boundary element method is proposed for determining the wheel-rail contact zone and the normal stress distribution within it. The potential contact area is discretised using strip elements, employing an iterative algorithm to satisfy the contact constraints. At each iteration, the length of the contact strips is updated using an analytical expression based on Hertz's theory. This simplified formulation provides good approximation of the pressure distribution and consequently the contact area in non-elliptic cases. The reduction in the number of system unknowns by using a semi-analytical methodology also enables fast computation speeds, an indispensable requirement in railway dynamics. |
| Databáze: | OpenAIRE |
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