A Numerical 3D Model of Rail Wheelset Dynamics

M. Malvezzi, S. Papini, L. Pugi, A. Rindi, E. Meli, M. Francini

Abstract


This work describe a new tridimensional wheel/rail contact model. Along with dynamic equations, the proposed model allows to simulate wheelset motion.
First it is necessary to find the number and position of contact points between wheel and rail; such values are numerically computed using Simplex method. The creep forces are computed using Hertz theory for normal stress and Kalker theory for tangential stress.
The obtained numerical results show a good agreement with experimental data and simplified theoretical models available in literature (e.g. Klingel theory).

[DOI: 10.1685 / CSC06106] About DOI

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DOI: http://dx.doi.org/10.1685/




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