Oshovs'ka O. Reliability increasing of the metallurgical machines using the technical maintenance and repair expert system.

Mechanical equipment of metallurgical enterprices. Metallurgical machines reliability increasing due to the technical maintenance and repair improvement using the expert system. Methods of mathematical statistics, regression analysis, decisio making theory, computer technology. First, the building conception of technical maintenance and repair expert system is elaborated, which provides their reliability increasing. The model of periods forecasting of repair-preventive works by technica state is eleborated. The analitical dependence for optimal between repair period definition of metallurgical machines elements on the maximizing of their availability or the minimizing of repair specific expeditures is obtained. The analitical depen ence between machine availability and its spare parts is got. The process of decision searching and making in the expert sysytem is formalized. Mathematical models and algorithms their realized for searching the optimal decision of tasks on technical maitenance and repair of metallurgical equipment with account of repair service resources are worked out and took root at the blooming shops of OAS "Donetsk metallurgical plant" and OAS "Enakievsky metallurgical plant", at DonSIImet. At the metallurg cal plants, science and research institutes, in educational process in high schools.