Seyed Mohammad Hassan Hosseini
Abstract
Today, the realization of pre-determined programs and timely supply of customer requests and orders is one of the important and strategic goals of organizations and production units. This importance is caused by importance of customer position and also exploitation of resources. In this paper, the integrated ...
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Today, the realization of pre-determined programs and timely supply of customer requests and orders is one of the important and strategic goals of organizations and production units. This importance is caused by importance of customer position and also exploitation of resources. In this paper, the integrated production planning and maintenance problem is studied. Two objective function is considered for this problem. First, minimizing total cost and second, minimizing dissatisfaction of customer that comes from delay in demands. Due to the importance of the customer place in nowadays competitive environment, the last objective function is added to problem to getting closer to the real world. First, problem is definined with variables and parameters then, bi-objective mathematical model is presented. Since, this problem has been proved as NP-hard, an approximation method is also developed based on Non-dominated Sorting Genetic Algorithm II (NSGA-II). Finally, this problem is solved by applying two algorithmand NSGA-II using standard data that is obtained from references. Results show that performance of the proposed method based on NSGA-II both in solution quality and running time is suit.
