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Comparison of Non-elliptic Contact Models: Towards Fast and Accurate Modelling of Wheel-Rail Contact
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles. (KTH Railway Group)ORCID iD: 0000-0003-2590-3698
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles. (KTH Railway Group)ORCID iD: 0000-0002-3447-6686
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles. (KTH Railway Group)ORCID iD: 0000-0002-2571-4662
2012 (English)In: Proceeding of 9th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, 2012, 120-128 p.Conference paper, Published paper (Refereed)
Abstract [en]

The demand to investigate and predict the surface deterioration phenomenain the wheel-rail interface necessitates fast and accurate contact modelling.During the past twenty years, there have been attempts to determine more realisticcontact patch and stress distributions using fast non-iterative methods.The main aim of the present work is to compare some of these state-of-theart,non-elliptic contact models available in the literature. This is consideredas the first step in introducing a fast and accurate non-elliptic contact modelthat can be used on-line with vehicle dynamics analysis. Three contact models,namely STRIPES, Kik-Piotrowski and Linder methods are implementedand compared in terms of contact patch prediction, as well as contact pressureand traction distributions. The paper also discusses the gaps to be filledin terms of contact model evaluation and the results indicate the need forbetter contact pressure and patch estimation in certain contact cases.

Place, publisher, year, edition, pages
2012. 120-128 p.
Keyword [en]
wheel-rail contact, non-elliptic contact, rail vehicle dynamics, rolling contact, modelling
National Category
Tribology
Research subject
The KTH Railway Group - Tribology
Identifiers
URN: urn:nbn:se:kth:diva-116805Scopus ID: 2-s2.0-84906991856OAI: oai:DiVA.org:kth-116805DiVA: diva2:600964
Conference
9th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems
Projects
Modelling contact in the wheel-rail interface
Note

QC 20120131

Available from: 2013-01-31 Created: 2013-01-28 Last updated: 2013-01-31Bibliographically approved

Open Access in DiVA

Sichani_Enblom_Berg(663 kB)476 downloads
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S. Sichani, MatinEnblom, RogerBerg, Mats

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