Comparison of vehicle-track interaction models to simulate vertical wheel/rail impact contact

Comparison of vehicle-track interaction models to simulate vertical wheel/rail impact contact

Shen, C. (TU Delft Railway Engineering)
Sabbatini, L. (TU Delft Railway Engineering)
Wei, Z. (TU Delft Railway Engineering)
Dollevoet, R.P.B.J. (TU Delft Railway Engineering)
Li, Z. (TU Delft Railway Engineering)

Spiryagin, Maksym (editor)
Gordon, Timothy (editor)
Cole, Colin (editor)
McSweeney, Tim (editor)

2018

This study compares various assumptions in different models to assess their capabilities to model vehicle-track interactions up to 2 kHz at a single rail-top defect. Field measurement data are used to evaluate discrepancies. The characteristics of contact force and axle-box acceleration (ABA) are first identified and qualitatively correlated with track, wheelset and contact models. Subsequently, the results from different models are quantitatively compared in terms of their capabilities to reproduce those characteristics. It is found that the differences in sleeper and wheel-rail contact models lead to the most significant discrepancies. The causes and physical implications of the quantified discrepancies are also discussed.

http://resolver.tudelft.nl/uuid:39f4142b-23d4-49fb-a6ee-2f80c02b1958

CRC Press

9781138035713

Dynamics of Vehicles on Roads and Tracks: Proceedings of the 25th International Symposium on Dynamics of Vehicles on Roads and Tracks (IAVSD 2017), 14-18 August 2017, Rockhampton, Queensland, Australia, 2

25th International Symposium on Dynamics of Vehicles on Roads and Tracks, 2017-08-14 → 2017-08-18, Rockhampton, Australia

Institutional Repository

conference paper

© 2018 C. Shen, L. Sabbatini, Z. Wei, R.P.B.J. Dollevoet, Z. Li