Multi-criteria evaluation of wheel/rail degradation at railway crossings

Wei, Z.; Nunez, Alfredo; Liu, Xiubo; Dollevoet, R.P.B.J.; Li, Z.

doi:10.1016/j.triboint.2019.106107

Multi-criteria evaluation of wheel/rail degradation at railway crossings

Title

Multi-criteria evaluation of wheel/rail degradation at railway crossings

Author

Wei, Z. (TU Delft Railway Engineering; China Academy of Railway Sciences)
Nunez, Alfredo (TU Delft Railway Engineering)
Liu, Xiubo (Infrastructure Inspection Research Institute; China Academy of Railway Sciences)
Dollevoet, R.P.B.J. (TU Delft Railway Engineering)
Li, Z. (TU Delft Railway Engineering)

Date

2020

Abstract

This study evaluates the degradation of wheels and rails at railway crossings. The evaluation method is composed of 1) finite element simulation of dynamic wheel/crossing interaction and 2) multi-criteria analysis of wheel/rail degradation in terms of yield behavior, rolling contact fatigue (RCF) and wear. With the aid of this method, we conducted a case study identifying the proper yield strength of rail steel material for a 54E1-1:9 crossing under a specified traffic condition. The case study indicates that the wear of contact bodies is more sensitive to train speed compared with yield and RCF; the increase of rail yield strength suppresses rail degradation while exacerbating wheel degradation; and rail yield strength in the range of 500–600 MPa is preferred to achieve a good trade-off between the wheel and rail degradations.

Subject

Finite element modeling
Multi-criteria evaluation
Railway crossing
Wheel/rail degradation

To reference this document use:

http://resolver.tudelft.nl/uuid:535415b5-ff6e-4e17-a2bf-296bb49d98b7

DOI

https://doi.org/10.1016/j.triboint.2019.106107

ISSN

0301-679X

Source

Tribology International, 144

Part of collection

Institutional Repository