Using redundancy methods to build a maintenance and repair system in Burundi

Abstract

The purpose of this paper is to ensure the maintenance and Repair system’s functioning in Burundi using redundancy methods, which include the organization of warehouse stocks of repair kits (units, repair kits) formed on the basis of the received results from studies on the damageability of structural elements of buses in Burundi. This approach will simultaneously ensure that all maintenance and repair requests are met when first needed, reduce vehicle downtime while waiting for repairs, and thus increase the efficiency of using ground transport and technological means. For the practical implementation of the task, a methodology for the strategy’s optimization for managing the stocks of circulating units in the conditions of Burundi on the basis of an analysis of various sources of literature and a method for size’s calculation of the circulating fund of units, spare parts and materials using modern mathematical models were developed. Costs of its creation, maintenance and replenishment in the context of Burundi were also estimated. As a result, it was shown after calculations that in the example of the OTRACO vehicle transport company it is possible to reduce the probability of bus downtime due to gearbox failure to 5%. The proposed method of redundancy with repair kits, especially in the conditions of Burundi, has an invaluable property; when it is implemented, the technical condition of buses, even despite the long service life, has a clear tendency to be improved.