Beschreibung:
AbstractHigher speed of rolling and heavy loads that subject the contact zone in rail‐wheel contact require dynamic analysis with wave effects taken into account. In such a case we can observe polygonization and corrugation of wheels and rails. This phenomenon occurs and increases in nature with the increase of speed and load. Even the steady motion of the roller center along the flat surface without friction results in oscillation of the contact force. Its amplitude increases with the speed while the number of corrugations decreases in the same time. The simulation showed the rotation of the wheel material around the axle. The space‐time element method was applied to refine the time step of integration only for elements being in contact. The spatial refinement allows to determine precisely the contact zone.