Effect of rail cant on stress distribution
1 Loram of Brazil, Curitiba, Brazil.
2 Aeronautical Engineering Department, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil.
3 Vale Institute of Technology, Ouro Preto, Brazil.
Review
World Journal of Advanced Engineering Technology and Sciences, 2023, 09(01), 372–386.
Article DOI: 10.30574/wjaets.2023.9.1.0184
Publication history:
Received on 09 May 2023; revised on 18 June 2023; accepted on 21 June 2023
Abstract:
The rail cant is an important geometry parameter and is commonly monitored to ensure railway safety and comfort conditions. Understanding the influence of cant variation on the performance of railway components is extremely important to define the tolerance limits of the track and adequacy of maintenance plans. There are numerous rail cant patterns on railways, 1:40, 1:30, 1:20. However, the optimal rail cant to reduce the stress and wear of rail head not been extensively studied. This work performs an analysis of the effect of the rail cant on the rail head stress distribution. To investigate stress and strain in rail head, a Finite Element Model with Ansys software was used. For the analysis was considered a 136RE rail, axle load of 32 ton and AAR-1B wheel profile. The rail cant was varied in 0, 1:20 and 1:40. The results show that the stress in rail and wheel increases with the rail cant. The maximum stress occurred in the condition with rail cant of 1:20. The variation of cant from 0 to 1:20 results in a decrease of approximately 9% in maximum stress, ranging from 947 MPa to 867 MPa. The wheel/rail contact in cant zero condition occurred close to the transition of the wheel tread and the beginning of flange root, resulting in a dynamic instability in the wheelset. In addition to higher contact stress, increases the propensity for the hutting phenomenon, which can accelerate rail and wheel wear
Keywords:
Rail cant; Rail; Wheel railway; FEM
Full text article in PDF:
Copyright information:
Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0