Symulacja warunków eksploatacyjnych powodujących uszkodzenia powierzchni tocznych kół i szyn kolejowych

In the paper the dynamical processes are presented which lead to damage of rolling surfaces of rails and railway wheels. Due to dynamic interaction of rail vehicles with track on the rolling surfaces appear permanent deformations and structural changes inducing generation of surface deformations and fatigue cracks. As the main reason of cracking one approve thermal strokes during braking changing residual stresses in wheel rims and compressible stress in rails. But the principle influence have dynamical phenomena.