Estimating the damage of railway carriage wheels equipped with disc brakes

Márton Krénusz; Róbert Sándor Kovács; Miklós Krémer

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arXiv · 2102.12243

Estimating the damage of railway carriage wheels equipped with disc brakes

Márton Krénusz·Róbert Sándor Kovács·Miklós Krémer

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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.

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Márton Krénusz, Róbert Sándor Kovács, Miklós Krémer. 2021-02-24. Estimating the damage of railway carriage wheels equipped with disc brakes. https://arxiv.org/abs/2102.12243

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