Modelling and simulation of Adhesion of the RAIL vehicle

Mirosław Lewandowski; Wiesław Grzesikiewicz; Michał Makowski; Katarzyna Rutczyńska-Wdowiak

doi:10.24136/jaeee.2022.008

Authors

Mirosław Lewandowski Warsaw University of Technology https://orcid.org/0000-0002-7906-9726
Wiesław Grzesikiewicz Warsaw University of Technology
Michał Makowski Warsaw University of Technology https://orcid.org/0000-0002-6428-321X
Katarzyna Rutczyńska-Wdowiak Kielce University of Technology https://orcid.org/0000-0002-5162-3836

DOI:

https://doi.org/10.24136/jaeee.2022.008

Keywords:

modelling, self-excited vibrations, simulation, wheel adhesion, unstable friction

Abstract

In the paper we consider the issue related to the phenomenon of wheel-to-rail adhesion. This issue concerns self-excited vibrations in the area of wheel-rail contact, caused by unstable friction. Such friction is characterized by decreasing values of the friction coefficient with increasing slipping velocity. The paper includes mathematical formulation of the problem and presents the method for solving it. In addition, a simulation of elementary vehicle driving was performed. During the simulation, self-excited vibrations arose during wheel slip caused by high driving torque. The paper presents graphs illustrating the tangential force and the slipping velocity during these vibrations.

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Modelling and simulation of Adhesion of the RAIL vehicle

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