Journal of Theoretical
and Applied Mechanics

34, 1, pp. 7-15, Warsaw 1996

On a numerical solution of rail-wheel contact problems

Kurt Frischmuth
We assume rail and wheel to be undeformable bodies. The motion is described by 6 variables. We postulate the existence of at least one contact point at each instant, thus introducing a nonsmooth constraint manifold. We study jump conditions for trajectories crossing the singularities in the constraint on the basis of a geometrical regularization. Numerical solutions for a wheel-set are presented.