Analysis of the Wear of Railway Turnouts in a Combined Method and Hardening Model

Document Type : Research Article

Authors

1 railway engineering, Iran university of science and technology, Tehran, Iran

2 railway engineering, Iran university of science and technology, Tehran,Iran

Abstract

Nowadays, the increase in axial load and speed in railway transportation systems has increased the amount of pressure applied to the surface and energy loss and has caused severe wear of turnout profiles, especially in turnout intersections. One of the major financial and physical losses to the country’s railway is the train derailment in the turnout intersections. Due to the importance of turnout, it has been tried to study the role of damages caused by turnout wear of railway system and explain the necessity for such research, particularly in Iran, by studying this phenomenon and examining the ruling theories as well as collecting information. In fact, these studies are the starting point for a more precise investigation into this phenomenon. In the following, the movement of the train on a turnout is simulated in the universal mechanism software and the amount of force applied to the turnout and the wear energy is extracted. Furthermore, the effect of different parameters such as speed, axial load, friction coefficient, arc radius, and turnout profile on the rate of wear will be investigated. Then the turnouts are modeled on CATIA software and the forces extracted from the universal mechanism simulation are exerted to the turnout in the finite element method software, and the stress, strain, and deformation of the turnouts are investigated

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References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 5
August 2020
Pages 1213-1228

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