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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 316

Identification and Modeling of Nonlinear Phenomena at the Wheel/Rail Contact Area

B. Firlik, B. Czechyra and W. Sawczuk

Department of Rail Vehicles, Poznan University of Technology, Poland

Full Bibliographic Reference for this paper
B. Firlik, B. Czechyra, W. Sawczuk, "Identification and Modeling of Nonlinear Phenomena at the Wheel/Rail Contact Area", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 316, 2014. doi:10.4203/ccp.104.316
Keywords: tramway, vehicle dynamics, contact, wheel profile, ride stability, safety against derailment.

Summary
This paper describes the main assumptions, objectives and methodology for the identification and modelling of nonlinear phenomena in wheel-rail contact for the development of a new tramway wheel profile. The main objective of this research is the identification and modeling of nonlinear phenomena in wheel-rail contact area for light rail vehicles, in order to develop an optimal tram wheel profile for Polish cities, taking into account the criterion of driving safety and tread wear during the lifetime. It is necessary to take action in the following research fields: contact mechanics for the vehicle-track interaction, tribology in the contact area, wheel-rail material research, tramway noise and vibration etc. In this research it is all the more important, that light rail vehicles are characterized by many different structural characteristics and different operating circumstances compared to those of the classic rail vehicles. Hence the standards or results of research previously carried out for locomotives or railroad cars cannot be directly used.

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