ENSURING THE RELIABILITY OF THE ERGATICAL SYSTEM DURING TECHNICAL MAINTENANCE

The paper considers the general principles of ensuring the reliability of an ergatic system consisting of an operator, software and a technical system during maintenance. The degree of software reliability is characterized by the probability of the software product operating without failure for a certain period of time. Methods for ensuring the reliability of a technical component are divided into two classes: general technical and special. Solutions to the problem are considered for four cases: when an element of a technical component is replaced upon failure, when an element is restored upon failure, when an element is replaced upon failure or reaching a certain value of operating time, when an element is restored upon failure or reaching an operating time. An expression for the operating time to failure during preventive maintenance of a technical component is obtained depending on the cost of work related to disassembly, failure search, assembly of a technical component, restoration of an element upon failure, restoration of an element during preventive maintenance.