Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 6, No 5 (2014)

A Mathematical Model and Simulation Results of the Dynamic System Railway Vehicle Wheel–Track with a Wheel Flat

Rasa Žygienė (Vilnius Gediminas Technical University, Lithuania)
Marijonas Bogdevičius (Vilnius Gediminas Technical University, Lithuania)
Laima Dabulevičienė (Vilnius Gediminas Technical University, Lithuania)

Abstract


A mathematical model of the system Railway Vehicle Wheel–Track with a wheel flat of a wheelset has been made. The system Railway Vehicle Wheel–Track has been examined on the vertical plane. The mathematical model of the system Railway Vehicle Wheel–Track has employed linear, nonlinear, elastic and damping discrete elements. Rail dynamics haves been described using the finite element method. The unevenness of the rail and the wheel of the wheelset have been evaluated considering the contact between the rail and the wheel flat of the wheelset. The analysis of dynamic processes taking place in a railway vehicle wheel with the wheel flat moving at speed V = 60 km/h has been accomplished. The results of mathematical modelling of the above introduced dynamic system have been presented along with graphically displayed research findings of the conducted research.

Article in: English

Article published: 2014-12-19

Keyword(s): wheel-rail contact; dynamics; acceleration; penetration; numerical method.

DOI: 10.3846/mla.2014.696

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Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 License.