Author:
Jelila Y D,Lemu H G,Pamuła W,Sirata G G.
Abstract
Abstract
The article deals with wheel-rail contact analysis at railway turnout using a finite element modelling approach. The focus is understanding the wheel-rail contact problems and finding the means of reducing these problems at railway turnouts. The main aim of the work reported in this article is to analyse fatigue life and simulate the wheel-rail contact problems for a repeated wheel loading cycle by considering the effect of normal and tangential contact force impact under different vehicle loading conditions. The study investigates the impact of tangential contact force generated due to different-angled shapes of the turnout and aims to reveal how it affects the life of contacting surfaces. The obtained results show that the maximum von-Mises equivalent alternating stress, maximal fatigue sensitivity, and maximum hysteresis loop stresses were observed under tangential contact force. These maximum stresses and hysteresis loops are responsible for rolling contact fatigue damage, and excessive deformation of the wheel-rail contact surface. At a constant rotational velocity, the tangential contact force has a significant impact on the fatigue life cycle and wheel-rail material subjected to fatigue damage at lower cycles compared to the normal contact force. The finite element modelling analysis result indicated that the contact damages and structural integrity of the wheel-rail contact surface are highly dependent on contact force type and can be affected by the track geometry parameters.
Reference23 articles.
1. Long-term rail profile damage in a railway crossing: Field measurements and numerical simulations;Skrypnyk;Wear,2021
2. Numerical analysis for investigating wheel-rail impact contact in a flange bearing frog crossing;Xu;Wear,2020
3. Multi-criteria evaluation of wheel/rail degradation at railway crossings;Wei;Tribol Int.,2020
4. A full explicit finite element simulation for the study of interaction between wheelset and switch panel;Lu;Vehicle System Dynamics,2020
5. Experimental analysis of rail contact fatigue damage on frog rail of fixed common crossing 1:12;Sysyn;J Fail Prev.,2019
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献