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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 248
Dynamic Rolling Contact Analysis between Wheel/Rail by Large-Scale Parallel FEM H. Sakai1, M. Takagaki1, M. Hayashi1, A. Aikawa1, H. Okuda2 and J. Yin3
1Railway Dynamics Division, Railway Technical Research Institute, Tokyo, Japan
H. Sakai, M. Takagaki, M. Hayashi, A. Aikawa, H. Okuda, J. Yin, "Dynamic Rolling Contact Analysis between Wheel/Rail by Large-Scale Parallel FEM", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 248, 2014. doi:10.4203/ccp.104.248
Keywords: finite element method, large-scale parallel computing, dynamic rolling contact, contact patch, impact load, dynamic partitioning.
Summary
In this paper, we attempt to make dynamic rolling contact analysis between
wheel/rail by the three-dimensional finite element method in large-scale parallel
computing. In this analysis, we clarify the mechanical behaviour of the contact
patch, when a wheel rolls at a high speed with loading torque. The technique of an
efficient rail model is developed to accelerate the wheel in the rail at a small model
size. In addition, the present method has a technique of dynamic partitioning to
include the contact patch in one partition region on the parallel calculation with the
wheel rolling. As a result, it became possible to evaluate the dynamic rolling
contact behaviour between wheel/rail.
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