COMPUTER MODEL OF DECISION-MAKING ON RECONFIGURATION OF THE ORE GRINDING TECHNOLOGICAL SYSTEM STRUCTURE

• Main Authors: Seyran Sh. Balasanyan, Hermine M. Gevorgyan
• Format: Article
• Language: Russian
• Published: Tomsk Polytechnic University 2019-01-01
• Series: Известия Томского политехнического университета: Инжиниринг георесурсов
• Subjects: ore grinding; failure; simulation modeling; decision tree; reconfiguration; structural redundancy
• Online Access: http://izvestiya.tpu.ru/archive/article/view/49/21

The relevance of the research is caused by the need to improve the reliability and efficiency of functioning of the ore grinding technological system by introducing structural redundancy. The main aim of the research is to substantiate the need to improve the efficiency of the ore grinding technological system by introducing structural redundancy (reserve links), determining the best structure of reserve connections between grinding aggregates and rational strategies for their use, building a mathematical decision-making model for reconfiguring the structure of the ore grinding technological system at the failure of its equipment in the form of a decision tree, the development of a decision-making computer model for reconfiguring the ore grinding technological system structure. Object of the research is the ore grinding technological system of Zangezur Copper-Molybdenum Combine (Armenia). Methods: decision-tree method (method soft computing) simulation modeling. The result of simulation experiments with the computer model of the technological system of ore grinding is determined by the best structure of the redundant links between the milling units and rational strategy for their use, on the basis of which the authors have developed a mathematical model of decision-making on reconfiguring the structure of ore grinding technological system (at the failure of its equipment) in the form of a decision tree. On the basis of this model the authors developed a computer model that allows, with a change in the operability of grinding aggregates, selecting in a timely manner the best structure of the redundant links and mode of operation for each unit for the current failed situation, regardless of the operator's skills and experience. Thanks to the application of this model, the operator is completely freed from the duties of the decision-maker. The developed computer model was included in the special software of the automated process control system for grinding the ore from Zangezur Copper-Molybdenum Combine.