Comparison of non-elliptic contact models

Towards fast and accurate modelling of wheel-rail contact

Matin Sh Sichani, Roger Enblom, Mats Berg

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The demand to investigate and predict the surface deterioration phenomena in the wheel-rail interface necessitates fast and accurate contact modelling. During the past 20 years, there have been attempts to determine more realistic contact patch and stress distributions using fast simplified methods. The main aim of the present work is to compare some of these state-of-the-art, non-elliptic contact models available in the literature. This is considered as the first step to develop a fast and accurate non-elliptic contact model that can be used on-line with vehicle dynamics analysis. Three contact models, namely STRIPES, Kik-Piotrowski and Linder are implemented and compared in terms of contact patch prediction, as well as contact pressure and traction distributions. The evaluation of these models using CONTACT software indicate the need for improvement of contact patch and pressure estimation in certain contact cases.

Original languageEnglish
Pages (from-to)111-117
Number of pages7
JournalWear
Volume314
Issue number1-2
Early online date3 Dec 2013
DOIs
Publication statusPublished - 15 Jun 2014
Externally publishedYes

Fingerprint

rails
wheels
Rails
Wheels
traction
deterioration
pressure distribution
Dynamic analysis
stress distribution
Deterioration
Stress concentration
vehicles
computer programs
evaluation
predictions

Cite this

Sichani, Matin Sh ; Enblom, Roger ; Berg, Mats. / Comparison of non-elliptic contact models : Towards fast and accurate modelling of wheel-rail contact. In: Wear. 2014 ; Vol. 314, No. 1-2. pp. 111-117.
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Comparison of non-elliptic contact models : Towards fast and accurate modelling of wheel-rail contact. / Sichani, Matin Sh; Enblom, Roger; Berg, Mats.

In: Wear, Vol. 314, No. 1-2, 15.06.2014, p. 111-117.

Research output: Contribution to journalArticle

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AU - Sichani, Matin Sh

AU - Enblom, Roger

AU - Berg, Mats

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AB - The demand to investigate and predict the surface deterioration phenomena in the wheel-rail interface necessitates fast and accurate contact modelling. During the past 20 years, there have been attempts to determine more realistic contact patch and stress distributions using fast simplified methods. The main aim of the present work is to compare some of these state-of-the-art, non-elliptic contact models available in the literature. This is considered as the first step to develop a fast and accurate non-elliptic contact model that can be used on-line with vehicle dynamics analysis. Three contact models, namely STRIPES, Kik-Piotrowski and Linder are implemented and compared in terms of contact patch prediction, as well as contact pressure and traction distributions. The evaluation of these models using CONTACT software indicate the need for improvement of contact patch and pressure estimation in certain contact cases.

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