The Methodology for Creating the Optimal Set of Spare Equipment in the Organizational and Technological System for Providing Mechanical Assembly at the Enterprises of the Motor-Car Construction Cluster
Purpose of research. Development of a methodology for the formation of an optimal set of spare tools. Methods. The totality of spare equipment in the organizational and technological system for providing mechanical assembly based on threaded connections at the enterprises of the motor-car construction cluster is presented in the work on the basis of a set-theoretical approach. Also, to describe the totality of spare equipment, theoretical and multiple models of the whole set of spare assembly tools, devices and the amount of spare parts for this equipment are used. The description of organization features of the repair service in the organizational and technological system for providing mechanical assembly at the enterprises of the motor-car construction cluster was carried out applying the principles and concepts of management theory. The formalization of the decision-making process for the formation of a set of spare equipment is based on the methods of decision-making theory. Some elements of the methodology are based on the use of methods of mathematical analysis and the theory of fuzzy sets. Results. A set-theoretic model of a set of spare assembly tools, devices, fixtures and spare parts has been proposed. The structure and decision-making process for the formation of a set of spare assembly tools, devices, fixtures and spare parts have been described. A methodology and algorithm for creating an optimal set of spare tools, devices, and spare parts have been proposed. The methodology and algorithm take into account the statistical parameters of equipment failures and make it possible to optimize the costs of purchasing assembly equipment, control and verification equipment and spare parts for them. Conclusion. The developed models of a set of spare assembly tools, devices, fixtures and spare parts, and the methodology and algorithm for creating the optimal set of spare assembly tools, devices, fixtures and spare parts make it possible to simplify management work at an enterprise of the motor-car construction cluster. The developed models, methodology and algorithm reduce the negative impact of factors related to the insufficient level of knowledge of decision makers and solve the problem of optimal management of the subsystem of spare tools, devices, fixtures and spare parts included in the organizational and technological system of mechanical assembly.