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ISSN 2753-3239
CCC: 7
PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 5.4

Impact of Contact Geometry, Rail and Wheelset Structural Dynamics on the Dynamic Behaviour on an Irregular Track

I. Kaiser1, F. Badea Romero1, J.Á. Pérez Fernández2, S. Strano3, M. Terzo3 and C. Tordela3

1Escuela Politécnica Superior, Universidad Antonio de Nebrija, Madrid, Spain
2Área de Ingeniería Mecánica, Universidad de Oviedo, Gijón, Spain
3Dipartimento di Ingegneria Industriale, Università degli Studi di Napoli Federico II, Napoli, Italy

Full Bibliographic Reference for this paper
I. Kaiser, F. Badea Romero, J.Á. Pérez Fernández, S. Strano, M. Terzo, C. Tordela, "Impact of Contact Geometry, Rail and Wheelset Structural Dynamics on the Dynamic Behaviour on an Irregular Track", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 5.4, 2024, doi:10.4203/ccc.7.5.4
Keywords: vehicle-track interaction, flexible wheelset, flexible rail, wheel-rail contact, contact geometry, track irregularities.

Abstract
The running behaviour of a passenger coach on a track with irregularities is simulated using an enhanced multibody model, which takes the structural flexibilities of both wheelsets and rails into account and which uses a highly detailed wheel-rail contact model. The results show that the strength of the impact of the structural flexibilities depends on the wheel-rail contact geometry. This combined impact affects the running behaviour as well as the stress distribution within the wheel-rail contact.

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