Non-Elliptic Wheel-Rail Contact Modelling in Vehicle Dynamics Simulation
2014 (English)In: The international Journal of railway technology, ISSN 2049-5358, E-ISSN 2053-602X, Vol. 3, no 3, 77-94 p.Article in journal (Refereed) Published
An approximate rolling contact model is introduced for fast evaluation of the contactpatch and stress distribution in the wheel-rail interface, capable of being usedon-line with dynamics simulations. The normal part of the model is based on a novelapproach in which the surface deformations are approximated, resulting in accuratepatch and pressure estimation. The tangential part is based on an adaptation of FASTSIMalgorithm to non-elliptic patches. The new model is compared to the approximatemodel of Kik and Piotrowski and the results are evaluated using Kalker’s CONTACTcode. The comparison clearly shows that the new model is more accurate than Kikand Piotrowski’s in terms of contact patch and stress distribution as well as creepforce estimation.
Place, publisher, year, edition, pages
2014. Vol. 3, no 3, 77-94 p.
IdentifiersURN: urn:nbn:se:kth:diva-181013OAI: oai:DiVA.org:kth-181013DiVA: diva2:897776
QC 201602022016-01-262016-01-262016-02-02Bibliographically approved