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The effect of track defects on the dynamics of wagons under brake-traction torque

Zhang, Z. & Dhanasekar, M. (2010) The effect of track defects on the dynamics of wagons under brake-traction torque. In Proceedings of the 10th International Conference on Computational Structures Technology, Civil-Comp Press, Valencia, Spain.

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Abstract

Track defects cause profound effects to the stability of railway wagons; normally such problems are modeled for cases of wagons running at constant speed. Brake/traction torque adversely affect the wheel-rail contact characteristics but they are not explicitly considered in most of the wagon-track interaction simulation packages. This research developed a program that can simulate the longitudinal behaviour of railway wagon dynamics under the actions of braking or traction torques. This paper describes the mathematical formulation of modelling of a full wagon system using a fixed coordinate reference system. The effect of both the lateral and the vertical track geometry defects to the dynamics of wagons is reported; sensitivity of traction/brake state is analysed through a series of numerical examples.

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ID Code: 39733
Item Type: Conference Paper
Additional Information: Accepted for 2011 HERDC
Keywords: Braking/traction Torque, Wheel Unloading, Lateral Track Irregularity, Vertical Track Irregularity, Wagon Yaw, Wagon Roll
ISBN: 9781905088379
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Deposited On: 09 May 2012 08:43
Last Modified: 22 Feb 2013 11:19

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