Estimating the Damage of Railway Carriage Wheels Equipped with Disc Brakes

Authors

  • Márton Krénusz
    Affiliation
    Department of Energy Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, H-1521 Budapest, P.O.B. 91, Hungary
  • Róbert Sándor Kovács
    Affiliation
    Department of Energy Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, H-1521 Budapest, P.O.B. 91, Hungary
    Department of Theoretical Physics, Wigner Research Centre for Physics, H-1525 Budapest, P.O.B. 49, Hungary
  • Miklós Krémer
    Affiliation
    Knorr-Bremse Rail Systems Budapest; Department of Railway Vehicles and Vehicle System Analysis, Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, H-1521 Budapest, P.O.B. 91, Hungary
https://doi.org/10.3311/PPme.18099

Abstract

The aim of this paper is to estimate the damage of railway carriage wheels caused by lock-up braking. First, we investigate the typical characteristics of wheel-rail contact including the parameters of contact patch, longitudinal creep and coefficient of adhesion. Then we show the current requirements concerning the wheel-slide protection systems and determine the points which should be reviewed. To predict the effect of the sliding phenomenon, material properties are needed, as well. Afterwards, a simplified thermal simulation is built to estimate where martensite formation may occur.

Keywords:

railway, wheel-rail contact, lock-up braking, sliding, martensite formation

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Published Online

2021-06-25

How to Cite

Krénusz, M., Kovács, R. S., Krémer, M. “Estimating the Damage of Railway Carriage Wheels Equipped with Disc Brakes”, Periodica Polytechnica Mechanical Engineering, 65(3), pp. 286–292, 2021. https://doi.org/10.3311/PPme.18099

Issue

Vol. 65 No. 3 (2021)

Section

Articles