چكيده به لاتين
Abstract:
Cell formation and layout are some important subjects in cell manufacturing. Additionally, with a long-period planning horizon, Machine Breakdown can make the whole system stop and this leads to delay to deliver the orders. Therefor, by considering the reliability when we are designing the system, the system efficiency both in designing and management will improve. Thus, a Multi Objective Integrated Mathematical Model has been provided to optimize the production planning system in two aspects of cellular production and machine layout which is integrated and the machine breakdown has been considered. The first objective function in this model will minimize cost variables which are the transportion cost between and in the cells (intercellular and intracellular cost), production costs, outsourcing costs and machine breakdown costs. Additionally the second objective function will used for maximizing the number produced parts. Furthermore, in order to make the model more efficient, some effective production factors were applied. Since the model is NP-Hard, an effective genetic algorithm has been developed in order to find answers near the optimize solution. Finally, some different examples has been provided and solved, in order to compare different approaches in reliability and designing cellular manufacturing layout systems. In these examples the efficiency of the algorithm which was mentioned above has been tested. Results show that this algorithm is good in both quality and time.
Keywords: Cellular Manufacturing Systems, Reliability, Layout, Cell Formation
