Analysis of parameters of conformal contact for wheel-center and bandage of an innovative wheel

The results of the analysis for the innovative design of wheel-sets are presented. This type of wheel-set allows different angular velocities of the bandages with respect to the wheel centers while the gravitational and frictional torsional connection between them remains the same. The results of approximate solution of the tolling contact problem are shown. In particular, the dependencies between the creep in internal contact of the differential rotation wheel-set (DRWS) and driving (or braking) rotational moment during rolling. The results of contact static investigation for differential rotation wheel (DRW) are discussed. The contact problem is solved using finite element method both in 2D and 3D with friction. The conclusion about the appropriateness of using 2D models is drawn.