Optimization of Lubricant Consumption in the Wheel/Rail Friction System

EasyChair Preprint 7243

Abstract

The article deals with the results of the study aimed at minimizing the consumption of lubricants in the wheel/rail interface. A numerical simulation of a circular slip path was carried out based on the theory of experiment planning. The simulation was performed depending on the wheel radius, the difference between the radii of the wheels contacting the flange and rim with the railhead, the taper angle of the flange and the angle of attack. According to Box-Wilkson steepest ascent method, geometrical parameters of the wheel/rail interface were obtained, making it possible to reduce the circular slip path by 30%. These results can significantly decrease the number of relevant field studies and lubricant consumption in the wheel-rail system. Mathematical modeling enabled to analyze the stress-strain state of the "wheel-rail" system at lateral contact with the addition of friction forces to the contact zone. The simulation results show the importance of using rail lateral lubrication as one of the means to extend the service life of this expensive track structure in small radius curves.

Keyphrases: Box-Wilkson method, angle of attack, flange angle, lateral contact, mobile rail lubricators, moment of forces, rail lubrication, regression equation, slip path, stationary rail lubricators, stress calculation, track infrastructure

@booklet{EasyChair:7243,
  author    = {Vyacheslav T. Volov and Aleksey A. Bondarenko and Dmitriy V. Ovchinnikov and Vitaliy V. Atapin and Lei Kou and Mykola Sysyn},
  title     = {Optimization of Lubricant Consumption in the Wheel/Rail Friction System},
  howpublished = {EasyChair Preprint 7243},
  year      = {EasyChair, 2021}}