TY - JOUR
T1 - Multi-criteria evaluation of wheel/rail degradation at railway crossings
AU - Wei, Zilong
AU - Núñez, Alfredo
AU - Liu, Xiubo
AU - Dollevoet, Rolf
AU - Li, Zili
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Finite element modeling
KW - Multi-criteria evaluation
KW - Railway crossing
KW - Wheel/rail degradation
UR - http://www.scopus.com/inward/record.url?scp=85075998876&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2019.106107
DO - 10.1016/j.triboint.2019.106107
M3 - Article
AN - SCOPUS:85075998876
SN - 0301-679X
VL - 144
JO - Tribology International
JF - Tribology International
M1 - 106107
ER -