Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=1845a59a-9f2a-46c7-a5b0-81975bf0d165 http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=1845a59a-9f2a-46c7-a5b0-81975bf0d165 AbstractThe conditions at the wheel/rail contact have a dramatic impact on safety, ride quality and cost of maintenance. Appreciating its importance, the US Federal Railroad Administration (FRA) initiated a project to improve both the understanding of and application of an improved wheel/rail interaction on Amtrak's Northeast Corridor. One item delivered as part of this programme is an improved wheel profile. This profile is designed to reduce wheel flange wear for the Amtrak vehicles without introducing wheelset hunting.The comparative wear performance of the new wheel has been evaluated against existing wheels by simulating the wheel-rail interaction over 800 km of running. The simulation is based on the principle of pummelling and employs a quasi-static curving model. The model is validated through comparison with NUCARS predictions. The improved wheel design is found to exhibit a 25% reduction in flange wear compared with the current wheel profile.