Industrial implementation of novel railway wheel damage prediction procedures
2009 (English)In: 8th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, 2009Conference paper (Refereed)
Adequate performance of the wheel-rail interface is essential for satisfactory operation of a railway system in terms of quality of service and maintenance effort. Pertinent requirements on efficiency tend to push the operation conditions toward higher loads and increased speed while the wheel-rail contact remains as a small and highly stressed area. Dominating modes of deterioration due to high normal and tangential stresses are wear and rolling contact fatigue. Both kinds lead to surface material loss, in the former case as a slow rate profile geometry change with consequences to the dynamic performance and in the latter case different crack patterns and eventually spalling or shelling requiring reprofiling.
In this paper the implementation of emerging technologies for wheel damage prediction in an engineering environment is summarised. Methods for prediction of wear and profile geometry evolution as well as for assessment of the risk for onset of rolling contact fatigue are described. Example results from recent applications are given.
In general it may be concluded that the implemented methods are becoming useful for prediction of profile alterations, for instance hollow wear linked to conicity increase and flange wear. The fatigue assessment methods are less mature and need further calibration but are still capable to indicate location and significance of risk for damage.
Place, publisher, year, edition, pages
Research subject Järnvägsgruppen - Fordonsteknik
IdentifiersURN: urn:nbn:se:kth:diva-48709OAI: oai:DiVA.org:kth-48709DiVA: diva2:458346
8th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems. Florence, Italy. September 15-18, 2009
QC 201111242011-11-222011-11-222016-09-02Bibliographically approved