dynamic analysis of high speed rolling stock when passing through switches with different geometry

Articles in Press

Document Type : Original Article

Authors

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

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

3 department of mechanic engineering,Iran university of science and technology,Tehran.Iran

4 Iranian Railway,Tehran,Iran

Abstract

In recent years, dynamic behavior of the high speed train passing through the turnout has been interested. Some of these studies include examining wheel and rail dynamics at the crossing nose. The dynamical behavior of passenger high-speed bogies during passage through the turnout is one of the most important issue in the safety of the vehicle, because of relation between speed and safety. The statistics have shown 40% of derailment have been caused by turnout defects. The purpose of this paper is studying and analyzing dynamics parameters of passenger coach and safety of a bogie, such as the derailment and the forces of the wheel and axle when passing through the turnout with different turnout profiles, because of their important role in safety and performance of railway system. In order to reach the purpose, a multi-body dynamic model of vehicles and turnout with different profiles and radius has been created in Universal Mechanism software. As the results show, the geometric features of the turnout, such as its radius and turnout profile, have greatly influenced the dynamics of the fleet.

Keywords

Journal of Transportation Research

Articles in Press, Accepted Manuscript
Available Online from 27 August 2019

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