Modelling of Frictional Conditions in the Wheel–Rail Interface Due to Application of Top-of-Rail Products

The coefficient of friction between a wheel tread and the top rail should be maintained at intermediate levels to limit frictional tangential contact forces. This can achieved by applying top-of-rail products. Reducing reduces energy consumption fuel costs, as well damage surfaces, such as, e.g., wear, rolling fatigue, corrugation. work describes simulation model that predicts evolution function number passes distance from application site for wayside considers interplay three mechanisms, namely pick-up product site, repeated transfer consumption. has been parameterized with data small-scale twin disc rig experiments full-scale wheel–rail experiments. Systematic investigations behaviour railway operating scenario show all mechanisms may achievable carry-on product. developed assists in understanding govern field. It aid finding optimal strategies respect position, amount, pattern depending on specific conditions.