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Advanced numerical study of impact forces on railway sleepers under wheel flat

Bian, Jian, Gu, YuanTong, & Murray, Martin H. (2011) Advanced numerical study of impact forces on railway sleepers under wheel flat. In Asia-Pacific Vibration Conference 2011, 5-8 December 2011, Hong Kong Polytechnic University, Hong Kong.

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Abstract

Wheel-rail interaction is one of the most important research topics in railway engineering. It includes track vibration, track impact response and safety of the track. Track structure failures caused by impact forces can lead to significant economic loss for track owners through damage to rails and to the sleepers beneath. The wheel-rail impact forces occur because of imperfections on the wheels or rails such as wheel flats, irregular wheel profile, rail corrugation and differences in the height of rails connected at a welded joint. In this paper, a finite element model for the wheel flat study is developed by use of the FEA software package ANSYS. The effect of the wheel flat to impact force on sleepers is investigated. It has found that the wheel flat significantly increases impact forces and maximum Von Mises stress, and also delays the peak position of dynamic variation for impact forces on both rail and sleeper.

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ID Code: 44137
Item Type: Conference Paper
Keywords: Wheel flat, Finite Element Analysis, Impact force, Concrete sleeper, ANSYS, Von Mises stress, Dynamic variation
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Dynamics Vibration and Vibration Control (091304)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2011 The Authors
Deposited On: 24 Aug 2011 09:16
Last Modified: 10 Dec 2011 01:21

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