INVENTORY MANAGEMENT IN THE ORGANIZATION OF LOCOMOTIVE PARK SERVICE

Abstract

Planned warning system for locomotive repair has almost exhausted its potential.This was facilitated by the rapid deterioration of the technical condition of the locomotive fleet andinfrastructure for both repair and operation. Rolling stock renewal is almost non-existent, and thereis interest in providing railway services due to rising tariffs and low levels of comfort.On the contrary, some foreign railways consider the planned warning system exhausted,especially in compliance with all requirements for maintenance and repairs, timely modernizationmeasures.But at the same time, the policy of monitoring the technical condition of manufacturers to formthe infrastructure for the organization of repair and modernization of the series of locomotives isgradually developing. The first scientific researches in this direction were devoted to substantiationof strategy of interaction of traditional approaches and those which bring considerable differencesfrom traditional. This is the adoption of a strategy for the distribution of operational and repairfunctions of locomotive enterprises, and when, together with manufacturers, repair plants and depots,the need to transfer repairs to service centers is determined.At the same time, large centers are being formed that provide service services for the regionsof operation, namely, organize the monitoring and audit of the enterprise and ensure the organizationof rolling stock repairs.Without a clear organization of the supply system, the organization of locomotive service, whichrequires the selection of the optimal procurement procedure and stocks.The introduction of a new system of maintenance and restoration of the locomotive fleet on theprinciples of service requires a clear organization of the supply of spare parts for repairinfrastructure.
 The system considers the solution of the optimization problem of the balance of profits andlosses in the creation of stocks for locomotive service.Assuming that the process demand was mostly random, it is proposed to introduce a targetfunction that takes into account the definition of the law of distribution of demand for spare parts,based on the minimum of the given measurements for their acquisition and storage. With this in mind,it is proposed to create an ideology of «virtual storage» to optimize stocks and their costs.