THE RESULTS OF SUBSTANTIATION OF THE RATIONAL MODE OF OPERATION OF A SPECIALIZED UNIT FOR MAINTENANCE AND ELIMINATION OF FAILURES OF MEANS FOR HARVESTING FRUITS
This article examines the results of substantiating the rational mode of operation of a specialized link for maintenance and elimination of failures of means for harvesting fruits. At the same time, modern methods of probability theory and mathematical modeling of the processes of harvesting and transporting fruits in piedmont gardening are used. The main objects of maintenance and elimination of failures are vehicles for transporting fruits - GAZ-53 trucks and tractor transport units such as MTZ-80 + 2PTS-4M. The main negative influence on the technological process of fruit harvesting is provided by the sudden failures of these vehicles. The choice of a rational mode of operation of such a specialized link is to ensure the lowest possible value of the downtime coefficient of transport units. At the same time, the probability of downtime of the link itself should also not be too great. As a result of the research carried out, as well as taking into account statistical data, it was established that the number of vehicles employed daily for harvesting fruits in each farm should be no more than six. It is concluded that the choice of a rational mode of operation of a specialized link to eliminate failures should be carried out depending on the ratio between the density of the flow of failures and the intensity of their elimination, which should not exceed 0.6. The obtained values of the downtime ratio equal to 10% and the downtime probability of a link - 41% are quite acceptable in the conditions of the farm. An attempt to further reduce the vehicle downtime ratio leads to an excessive increase in the probability of downtime for a specialized link.