Технологічно-організаційні методи забезпечення надійності експлуатації автоматизованих виробничих систем

Abstract

Розглянуто структуру часового технологічного ланцюга. Наведені математичні моделі елементів часової структури. На базі мікрорівневого аналізу операційної структури зазначені шляхи забезпечення раціонального функціонування технологічної системи в реальних умовах експлуатації.

In modern industrial conditions different operations are carried out in different conditions, and consequently, with their various duration. Operation synchronization at large engineering distinction of producing items is especially difficult and in many cases even impossible. At different duration each pair of adjacent operations absorbs or accumulates stock, if it is not available item storage or equipment standstill will be observed. Stock storage needs interpreting stores. However, store using essentially contradicts the requirement of manufacture continuity because the industrial areas and production cycle duration increase. The novelty of the approach to the analysis and maintenance of the reliability of technological process consists in «weighing» refusals according to the expenditure of time. It allows to open and use for maintenance of normal functioning of systems internal reserves (time in particular), incorporated in systems themselves , deeper penetration into the essence of the researched processes of functioning allows to reveal and to prove new, effective methods of maintainiry the reliability of complex systems in real conditions of operation. Changing an organization of moving the products during constantly brings about one and same results: changes a total idle time values of equipment, changes duration of production cycle, and changes a total wait time of items that brings about work-in process change. The analysis of time structures of technological processes has allowed choosing typical structures, which are appropriate to various kinds of specialization of manufacture. The interrelation of time, reliability and cost parameters is considered and the ways of optimization of time technological chains are specified.