INFLUENCE OF THE ELEVATION OF THE OUTER RAIL THREAD ON THE INTER-ACTION FORCES IN THE WHEEL-RAIL CONTACT IN THE CURVED SECTIONS OF THE RAILWAY TRACK

Railways on in the Russian Federation, the total length of curved sections is 33% of their total length. Side deterioration of wheels and rails saved a problem on the road. throughout the railway network, reducing their service life, which is associated with significant material losses. Lateral wear of rail threads in curved sections is a problem for both scientists and practitioners. A large of point of work are devoted to this [1-3]. The amount of lateral wear is determined by the forces of experiment between the wheel and the rail. The main factors in this interaction are speed and spatial position. Parameters that determine the spatial position – the state of the rails way in the plan and the height of the under rails. The height of the outer rail thread is set for a relatively long period of time and has a long-term effect on lateral wear. Identification of the relationship between the elevation and the interaction forces arising in the "wheel-rail" contact is an urgent challenge at the currently time. That depends on the condition of the train passing the curve, both the outer wheel of the wheelset and the inner wheel may slip, which intensifies the process of lateral wear. The slippage of the outer or inner wheel depends on the relative forces acting on these wheels. By determining the optimal elevation of the outer rail, it is possible to reduce the sliding of the wheel crest along the side surface of the rail, and to reduce the resulting longitudinal and lateral forces.