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This paper is focused on the study of the wheel-rail dynamic force caused by the interaction between a moving wheel and a rail with vertical irregularities. Three cases have been considered: (a) track with random irregularities, (b) track with joints and (c) track with isolated error. The results demonstrate that the magnitude of the dynamic forces is dependent on the velocity, track quality and, also, on the characteristics of the track irregularities and on the track damping

Influence of the Vertical Track Irregularities upon the Wheel - Rail Dynamic Forces