In this work, the authors present a methodology for assessing running gear with respect to rolling contact fatigue of wheels and rails. This assessment is based on the wheel/rail contact data of different wheel profile wear states obtained from a wheel profile prediction methodology. The approach allows a cumulative assessment of the rolling contact fatigue of rails in different curve radii (e.g. the sum of damage over the lifetime of wheel profiles). Furthermore, the assessment of the rolling contact fatigue can be undertaken at different wear states of the wheel profiles to provide an insight on how the rolling contact fatigue of wheels and rails varies depending on the evolution of wheel wear. The presented methodology is exemplarily applied to two bogie types, the UIC-Y25 standard bogie and the so-called FR8RAIL bogie with a mechanical wheelset steering device. The presented methodology has been shown to be a useful tool for the optimisation of vehicles already in an early stage of the vehicle development process.
Assessment of running gear performance in relation to rolling contact fatigue of wheels and rails based on stochastic simulations
2020-04-01
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Rolling contact fatigue , wear , freight wagon , running gear , wheel , bogie , rail
Contact fatigue damage of wheels and rails
Tema Archiv | 2002
|Rolling Contact Fatigue of Rails: Characteristics, Causes and Treatments
British Library Conference Proceedings | 1997
|Track - Harder rails prove their worth - New rails are cutting rolling contact fatigue
Online Contents | 2008
Areas of contact between wheels and rails
Engineering Index Backfile | 1907
|Engineering Index Backfile | 1961