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Registration Number

0213U004432, 0111U003331 , R & D reports

Title

Stochastic models of control, operation and maintenance of one - and multicomponent automated industrial systems in instrument-making.

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Head

Kopp Wadim,

Registration Date

12-12-2013

Organization

Sevastopol National Technical University

Description

The objects of research work are automated production systems (APS) of instrument-making industries. The aim is to establish methods for improving the productivity of the automated systems under the required quality of the products on the basis of stochastic analysis of processes of functioning, control and technical maintenance of the instrument-making industry. Methods of research: probability theory and mathematical statistics, theory of semi-Markov processes; the method of phase consolidation; mathematical analysis; functional analysis; numerical methods; methods of optimization; calculus of variations. The main scientific results. 1. An iterative semi-Markov model of a multi-threaded automated line that contains the convergent previously divided streams, allowing to determine the productivity, as well as the length of queues at its storage devices is constructed. An analysis of the models of synchronous production systems based on the comparison of analytical and simulation models is done. 2. Mathematical models for the maintenance of the total operating time of the elements of multi-component systems based on semi-Markov processes with a common phase space of states are built. 3. The semi-Markov model of information systems is created. The use of the obtained model by example of analyzing of hydro-meteorological monitoring system is given. 4. The analytical and simulation models of manufacturing processes, the selective acquisition and assembly for determining of performance of the assembly process are built. The single- and multi-step methods for the control of these processes are developed. 5. The semi-Markov models of the control of two-and multi-component systems with different control strategies are built. The optimal frequency of testing and diagnostic operations is determined. The semi-Markov model of calendar maintenance of multi-component systems is created. The main practical results. 1. A package of applied programs for determination of the timing of maintenance on total operating time of items is developed. 2. The technique of determining the parameters of the process of manufacture, acquisition and selective assembly of products is developed. 3. A software package to determine the optimal frequency of testing and diagnostic operations is created.

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Копп В. Я.
Обжерін Ю.Є.