Abstract
Creation of the tribological model of contact wear of a rail depending on grinding process parameters
Highlights
The current operating conditions of railway transport characterized by an increase in the power of locomotives, train speeds and carrying capacity, which leads to increased force influences on the railway
The aim of this work is to develop a tribological model of contact wear of rails during their operation depending on parameters of the grinding process
1) The empirical dependence of the influence of the parameters.of the grinding rails process on their wear resistance obtained by analysing the results of the tribological experiment given in [7]
Summary
The current operating conditions of railway transport characterized by an increase in the power of locomotives, train speeds and carrying capacity, which leads to increased force influences on the railway. The aim of this work is to develop a tribological model of contact wear of rails during their operation depending on parameters of the grinding process (temperature t, grinding depth of cut ae, grinding wheel speed V). Based on the results of tribological studies in the paper established the empirical dependence of the wear intensity of the rail sample on the grinding process parameters. The dependence that given in the paper used in the program It used to calculate the wear intensity of the rail according to the distribution of contact pressure in the contact zone of the wheel and rail. The dependence obtained for the approximate value of the rail wear intensity depending on the grinding process parameters (temperature t, machining allowance ae, linear speed of the grinding wheel V) based on the experimental data obtained from tribological experiments on the M-22M friction machine with grinded rail samples.
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