The effect of rolling contact fatigue mitigation measures on wheel wear and rail fatigue

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dc.contributor.author Spangenberg, Ulrich
dc.contributor.author Fröhling, Robert Desmond
dc.contributor.author Els, P.S. (Pieter Schalk)
dc.date.accessioned 2018-06-15T07:39:57Z
dc.date.issued 2018-03
dc.description.abstract The maintenance costs associated with heavy haul operations are mainly driven by wheel and rail damage in the form of wear and rolling contact fatigue (RCF). RCF initiated on the surface of the rail is the dominant damage mode on South Africa's iron ore export line. Two potential rail RCF mitigation measures were adapted from service tests and those published in literature and studied. The mitigation measures involved changes in suspension stiffness in an attempt to spread wheel wear across the tread and changes in rail profile design. These mitigation measures were evaluated by means of multi-body dynamics simulations including wheel wear predictions. Changes in suspension stiffness and rail profile design caused concentrated hollow wear on the wheels. These worn shapes of the wheels are conducive to RCF initiation with the worst performance coming from the application of a rail profile with gauge corner relief. Contact between the gauge side false flange of the wheel and the relief section of the rail profile were shown to increase the probability of RCF initiation. en_ZA
dc.description.department Mechanical and Aeronautical Engineering en_ZA
dc.description.embargo 2019-03-15
dc.description.librarian hj2018 en_ZA
dc.description.uri https://www.elsevier.com/locate/wear en_ZA
dc.identifier.citation Spangenberg, U., Fröhling, R.D. & Els, P.S. 2018, 'The effect of rolling contact fatigue mitigation measures on wheel wear and rail fatigue', Wear, vol. 398-399, pp. 56-68. en_ZA
dc.identifier.issn 0043-1648 (print)
dc.identifier.issn 1873-2577 (online)
dc.identifier.issn 10.1016/j.wear.2017.11.012
dc.identifier.uri http://hdl.handle.net/2263/65158
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2017 Elsevier B.V. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Wear. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Wear, vol. 398-399, pp. 56-68, 2018. doi : 10.1016/j.wear.2017.11.012. en_ZA
dc.subject Rolling contact fatigue (RCF) en_ZA
dc.subject Anti-head check rail profiles en_ZA
dc.subject Wheel-rail interface en_ZA
dc.subject Wear modelling en_ZA
dc.subject Self-steering bogie design en_ZA
dc.subject Suspensions (components) en_ZA
dc.subject Head check en_ZA
dc.subject Wheels en_ZA
dc.subject Suspensions (fluids) en_ZA
dc.subject Stiffness en_ZA
dc.subject GagesIron ores en_ZA
dc.subject Friction en_ZA
dc.subject Fatigue damage en_ZA
dc.subject Bogies (railroad rolling stock) en_ZA
dc.title The effect of rolling contact fatigue mitigation measures on wheel wear and rail fatigue en_ZA
dc.type Postprint Article en_ZA


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