Calculation of indicators of spare parts sets sufficiency.

Abstract

Abstract. To ensure high operational reliability of electronic equipment, maintenance and repair, and prolong the service life of the equipment, there is proposed a system which comprises diagnostics and repair tools, sets of spare parts (so-called “ZIP”), including spare parts design to ensure reliability criteria of the system, i.e., sufficiency, composition and the number of spare parts that are expected to ensure the operation of the system with the required reliability. The paper proposes to use the method of calculating spare parts on the basis of more adequate models of reliability which leads to more accurate forecasting of the required amount of spare elements and, as a result, to more efficient completeness of the equipment with spare parts. There have been determined the methods of replenishing which are used depending on the purpose of the equipment, the system of its maintenance and repair, the requirements for equipment reliability: whether it is periodic, or continuous, periodic replenishment with emergency deliveries or replenishment by level. To ensure high operational reliability of electronic equipment, maintenance and repair, and prolong the service life of the equipment, a support system is proposed, which includes diagnostic and repair tools, sets of spare parts, etc. The design of spare parts with compliance with the criteria of system operation reliability is considered. The task of requirements to the indicators of sufficiency of spare parts for products with non-renewable spare elements has been determined. The task of requirements to spare parts adequacy indicators for products with renewable spare parts has been distinguished as well. The article also considers an approach to the calculation and some principles of calculation of indicators of spare parts sets sufficiency.