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New methodology for fast prediction of wheel wear evolution
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0003-1583-4625
2017 (English)In: Vehicle System Dynamics, ISSN 0042-3114, E-ISSN 1744-5159, Vol. 55, no 7, 1071-1097 p.Article in journal (Refereed) Published
Abstract [en]

In railway applications wear prediction in the wheel–rail interface is a fundamental matter in order to study problems such as wheel lifespan and the evolution of vehicle dynamic characteristic with time. However, one of the principal drawbacks of the existing methodologies for calculating the wear evolution is the computational cost. This paper proposes a new wear prediction methodology with a reduced computational cost. This methodology is based on two main steps: the first one is the substitution of the calculations over the whole network by the calculation of the contact conditions in certain characteristic point from whose result the wheel wear evolution can be inferred. The second one is the substitution of the dynamic calculation (time integration calculations) by the quasi-static calculation (the solution of the quasi-static situation of a vehicle at a certain point which is the same that neglecting the acceleration terms in the dynamic equations). These simplifications allow a significant reduction of computational cost to be obtained while maintaining an acceptable level of accuracy (error order of 5–10%). Several case studies are analysed along the paper with the objective of assessing the proposed methodology. The results obtained in the case studies allow concluding that the proposed methodology is valid for an arbitrary vehicle running through an arbitrary track layout.

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2017. Vol. 55, no 7, 1071-1097 p.
Keyword [en]
multibody simulation, railway dynamics, statistical track analysis, Wheel wear prediction, Cost reduction, Costs, Forecasting, Railroad transportation, Railroads, Rails, Vehicles, Characteristic point, Dynamic calculations, Multibody simulations, Quasi-static calculations, Railway applications, Track analysis, Wheel wears, Wheels
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-207290DOI: 10.1080/00423114.2017.1299870ISI: 000399659300007ScopusID: 2-s2.0-85015037686OAI: oai:DiVA.org:kth-207290DiVA: diva2:1111815
Note

QC 20170619

Available from: 2017-06-19 Created: 2017-06-19 Last updated: 2017-06-19Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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