Optimization of Cellular Reconfigurable Manufacturing System under Constraints of Machinery Layout

Today, manufacturing industries are under severe pressure due to the increase in the cost of energy, raw materials, manpower, capital and global competition, while these trends will be maintained for a long time, the problems facing production are getting deeper day by day.Become One of the strategic issues in the production industry is layout design, which determines the long-term efficiency of operations. Layout design means how to arrange facilities in a working environment for producing products (or providing services) consisting of various types of machines and equipment for the productivity and efficiency of more and more organizations. It is worth noting. Considering multi-line arrangement, flexible configuration of cells, calculating the cost of moving machines and calculating the cost of moving parts according to the distance of the machines from each other are among the things that differentiate this model from other models. It becomes According to this problem, in this research, a model of multi-objective mathematical planning for the problem of dynamic facility layout was presented, which was evaluated according to the considered objectives based on the exact solution method and then validated using the exact solution algorithm. According to the results obtained from solving the model, we can understand the importance of using the model so that the configuration of the cells and the allocation of parts to the cells and the arrangement of the machines in the cells with the aim of reducing the costs caused by The types of movement of parts, the costs of operating on machines and the costs of moving, buying and maintaining machines in the system, lead to an increase in the overall efficiency of the system and create a balance in the system. One of the advantages of this model is that by bringing the machines closer to each other, it tries to prevent extra movements inside the cells as much as possible, which increases cell productivity. Considering multi-line arrangement, flexible configuration of cells, calculating the cost of moving machines and calculating the cost of moving parts according to the distance of the machines from each other are among the things that differentiate this model from other models.