Mathematical Modeling and Information Technologies in the Management of Tractor Maintenance Operations

Abstract

Abstract Obtaining the greatest amount of crop with the lowest labor and material costs in agriculture is possible by reducing the operating costs of the equipment used. Reducing the machine and tractor fleet cost is possible only if high performance machines are provided with a sufficient level of reliability of the equipment used. In order to ensure trouble-free machines operation during the stressful agricultural period, it is necessary to determine the level of technical equipment maintenance sufficient to prevent sudden failures and to perform the necessary maintenance and repair operations for the units outside the stressful agricultural period. The article presents an algorithm for calculating the incorrect determination probability of the failure-free tractor operation. Using the probabilistic characteristics of the errors measurement distribution according to the normal law and the tractor reliability indicators according to the Weibull law, it is possible to determine the risks associated with the tractor operation during busy agricultural periods. The obtained mathematical models were used while computer program algorithm writing for planning the maintenance and repair of the agro-industrial complex enterprises fleet.