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Wheel/rail rolling contact fatigue – Probe, predict, prevent

Anders Ekberg (Institutionen för tillämpad mekanik, Dynamik) ; Bengt Åkesson (Institutionen för tillämpad mekanik, Dynamik) ; Elena Kabo (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
Wear (0043-1648). Vol. 314 (2014), 1-2, p. 2-12.
[Artikel, refereegranskad vetenskaplig]

With the aim of putting prediction and prevention of rolling contact fatigue of wheels and rails in context, the paper sets out with a description of the phenomena. This is followed by a discussion on predictive models with emphasis on influencing factors needed to be accounted for and how these can be incorporated in a predictive model of surface and subsurface initiated rolling contact fatigue (RCF). The focus is on predictive models fast enough to be integrated with multibody dynamic simulations of train–track interaction. In particular an attempt is made to highlight how current predictive models of surface initiated RCF can be extended to incorporate all affecting phenomena. The discussion on influencing factors then forms the basis for a discussion on suitable and efficient measures to maintain RCF under control. Finally the paper provides a brief summary on similarities and differences between wheel and rail damage, and an outlook of expected future trends in terms of expected damage patterns and possibilities to meet these.

Nyckelord: Rolling contact fatigue, Rail–wheel tribology, Deterioration mechanisms, Numerical modelling

Conference: 9th Conference on Contact Mechanics and Wear of Rail/Wheel Systems Location: SW Jiaotong Univ, State Key Lab Tract Power, Chengdu, PEOPLES R CHINA Date: AUG, 2012

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Denna post skapades 2014-01-15. Senast ändrad 2016-10-18.
CPL Pubid: 192483


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