Analysis of Traction Coefficient Subject to Rail Cleaning Effect Based on Tribomachine Measurements

Abstract The proper representation of friction contact conditions between each wheel and the rail is necessary to accurately model behaviour a heavy haul locomotive since at wheel-rail interface affect locomotive’s dynamic performance under traction braking conditions. In normal operations, phenomenon commonly known as cleaning effect occurs. causes increased coefficients following treads head. interaction third body layer be partly or wholly eliminated from surfaces in generates new layer. An experimental analysis changes simulated conditions, terms pressure slip, presented this paper. For study, data processing equations are obtain coefficient slip. Furthermore, examined different slip experiment shows increases for given number cycles until reaching steady value, demonstrating that measurable various on twin disc machine.