Wheel-rail contact modeling for damage predictions in dynamics simulation software

Matin Shahzamanian Sichani, Roger Enblom, Mats Berg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel wheel-rail contact model is proposed to be implemented for multi-body dynamics simulation, in order to facilitate accurate online calculation of damage phenomena such as wear and rolling contact fatigue. The normal contact, i.e. contact patch and pressure distribution, is calculated using a fast non-elliptic algorithm called ANALYN. The tangential contact, i.e. tangential stress distribution, stick-slip division and creep force calculation, is treated using an alternative to the FASTSIM algorithm that is based on a strip theory which extends the exact two-dimensional solution of rolling contact to three-dimensional contacts. The proposed contact model is compared to the Kik-Piotrowski model and evaluated using the CONTACT code in terms of contact patch and stress distribution as well as creep force curves. The results show that the proposed model can significantly improve the estimation of the contact solution both in terms of creep force estimation and contact details, such as stress distribution, needed for damage predictions.

Original languageEnglish
Title of host publicationInternational Conference on Contact Mechanics of Wheel / Rail Systems
Publication statusPublished - 2015
Externally publishedYes
Event10th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems - Colorado Springs, United States
Duration: 30 Aug 20153 Sep 2015
Conference number: 10
http://www.academic.net/show-10-341-1.html (Link to Conference Website)

Conference

Conference10th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems
Abbreviated titleCM'2015
CountryUnited States
CityColorado Springs
Period30/08/153/09/15
Internet address

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Shahzamanian Sichani, M., Enblom, R., & Berg, M. (2015). Wheel-rail contact modeling for damage predictions in dynamics simulation software. In International Conference on Contact Mechanics of Wheel / Rail Systems