The choice of the strategy of technical operation of modernized shunting locomotives

Abstract

The ChoICe of The STRATegy of TeChNICAl oPeRATIoN of moDeRNIZeD ShUNTINg loComoTIveSPurpose. The work is devoted to the relevant issue of choosing a technical operation strategy for modernized shunting locomotives. To achieve this goal, the existing indicators evaluating the technical operation components were considered and a new evaluation criterion was proposed.methodology. Applying a comprehensive approach to assessing the technical operation effectiveness, a new indi cator, a complex technical operation coefficient, was developed. A mathematical model for determining the complex technical operation coefficient was developed.findings. The modeling of the change in the scope of unplanned repairs based on the existing requirements to the value of the percentage of faulty diesel locomotive locomotives. The complex technical exploitation coefficient for different strategies of scheduled technical maintenance and repairs is calculated.originality. Dependences are obtained for unplanned repairs depending on the percentage of faulty locomotives in and the number of sections at the disposal of the locomotive depot. A new criterion of estimation of systems of technical operation of locomotives is proposed and efficiency of its application is proved.Practical value. Modeling was carried out for two types of work (shunting and removal) and four maintenance and repair systems. Calculations of the complex technical operation coefficient for modernized shunting locomotives of the ЧМЕ3М series showed that the change in its value is 3.7-4.25 UAH/kWh. Thus, it is preferable to apply the fourth strategy from the considered maintenance and repair strategies. Due to its application, a rational technical operation system for modernized shunting locomotives of the ЧМЕ3М series with diesel engines Cat 3508 was choosen.

Determining the parameters of a shunting locomotive taking into account the environmental component

“…The issues of modernization of shunting locomotives with hybrid power plants were considered by scientists of the Ukrainian State University of Railway Transport in [8][9][10]. They provide methods for determining the main characteristics of a locomotive with a hybrid power plant, but the environmental component is not sufficiently taken into account.…”

Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results

“…For making management decisions and assessing traffic safety in railroad transport, the use of various types of indices is widespread. Thus, in work [4], an integrated coefficient of technical operation of locomotives is proposed, which characterizes the process of technical operation of the locomotive. The application of the proposed indicator for the choice of maintenance strategy of shunting diesel locomotives is considered in [5].…”