Study of the problem of wheel-rail rolling contact, in the context of dynamic simulation of the vehicle. Development of elastic multi-point contact models, in 3 dimensions. Resolution of the normal and tangential problem, computational acceleration using precalculated contact tables.

In this video, a derailment simulation of a single wheelset made with SIMPACK is shown. The wheel-rail contact forces computation is made using a multi-point contact model. On a straight track an increasing lateral force is applied to the wheelset until lateral force on the flange contact reaches a certain value and derailment occurs.

Analysis and study of conformal contacts, development of computational tools to analyse contact patches under high-conformity conditions.

Resolution of the normal and tangential problem in conformal contacts and study of the influence of conformity on the distribution of tensions and on the contact patch.