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A three dimensional model for the lateral and vertical dynamics of wagon-track systems

journal contribution
posted on 06.12.2017, 00:00 by Yan SunYan Sun, Dudley RoachDudley Roach, Manicka DhanasekarManicka Dhanasekar
Lateral and vertical dynamics of the wagon and track affects the maintenance and safety of the heavy haul railway operation. With a view to understanding this aspect comprehensively, a three-dimensional wagon-track system dynamics (WTSD) model is developed and presented. The model consists of a full wagon with 37 degrees of freedom (DOF), a four-layer track with discretely supported rails and a wheel-rail interface representing Kalker's creep and Hertzian contact parameters. The model has been validated using two sets of field data: one dealing with vertical impact due to the flat wheel and the other dealing with lateral hunting. The effect of detailed track modelling on lateral hunting is discussed, and the capability of the three-dimensional WTSD model in predicting lateral impact is demonstrated.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

217

Issue

1

Start Page

31

End Page

45

Number of Pages

15

ISSN

0954-4097

Location

United Kingdom

Publisher

Institution of Mechanical Engineer, UK

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Cooperative Research Centre for Railway Engineering and Technologies; James Goldston Faculty of Engineering and Physical Systems;

Era Eligible

Yes

Journal

Proceedings of the Institution of Mechanical Engineers Part F : Journal of rail and rapid transit.