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Wednesday, 02 March 2022 13:23

DECREAZE OF ROLLING RESISTANCE OF A RAILWAY WHEEL BY PERFECTION OF TRIBOLOGICAL PROPERTIES OF WHEEL AND RAIL CONTACT ZONE

G. Tumanishvili, T. Nadiradze,  G.Tumanishvili, S.Bitsadze, M.Tsotskhalashvili
Georgia

Improvement of tribological properties of the wheels and rails interacting surfaces, decrease of rolling resistance of a railway wheels, the train energy consumption, and wear rate is reached by their separation with the third body having due tribological properties. The ecological friction modifiers for tread and steering surfaces are developed. Presence of the third body in the contact zone is determined experimentally by the change of the friction moment and noise. The reasons of the negative, neutral and positive friction, mild, severe and catastrophic wear and types of damage of corresponding surfaces at various relative sliding velocities are revealed.


Last Updated on Wednesday, 02 March 2022 13:27
 
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