Characterisation of track buckling resistance
Artikel i vetenskaplig tidskrift, 2024

This study sets out with a network-wide analysis of the risk for track buckling that concludes that track buckling relates to a few “weak points” along the track. To identify these, a numerical model to predict track buckling resistance is developed. The influences of key track parameters are evaluated and quantified using the innovative concept of an equivalent temperature. This allows to quantify the large influence of for example, curves and hanging sleepers in terms of an equivalent increase in temperature. Influence of less well-defined track parameters such as nearby fixed points or recent track work is estimated through statistical assessment of track buckling reports. Predicted influence generally agrees with empirical knowledge with some exceptions that are discussed in the report. Developed models and produced results should be valuable in identifying track sections at risk of track buckling and in assessing effectiveness of mitigating actions.

railway track

numerical simulations

failure reports

data analysis

parametric influence

Thermal buckling

Författare

Elena Kabo

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Anders Ekberg

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

0954-4097 (ISSN) 20413017 (eISSN)

Vol. 238 7 786-794

In2Track-2 (CHARMEC EU19)

Trafikverket, 2018-11-01 -- 2021-10-31.

Europeiska kommissionen (EU) (EC/H2020/826255), 2018-11-01 -- 2021-10-31.

IAM4RAIL

Trafikverket (2023/9635), 2023-01-01 -- 2026-02-28.

Driving research and innovation to push Europe's rail system forward (IN2TRACK3)

Trafikverket (2021/19114), 2021-01-01 -- 2023-12-31.

Europeiska kommissionen (EU) (EC/H2020/101012456), 2021-01-01 -- 2023-12-31.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Infrastrukturteknik

Farkostteknik

DOI

10.1177/09544097241231884

Mer information

Senast uppdaterat

2024-08-10