Recent changes in legislation and public awareness toward more environmental friendly and sustainable industry have contributed to growing attention to reverse logistics operations. Characteristics of the return flow (such as varying quality of returned products, uncertainty in a volume of returned products, etc) and the complexity of integrating reverse and forward network flows have led to complex optimization problems. In this paper, an inventory control model for a reverse logistics network with distinguishable quality levels of returned products, two alternative recovery routes including repair and remanufacturing routes and a disposal route, in addition to the traditional production route, is proposed. A genetic-fuzzy framework is developed to optimize the network in a multi objective optimization setting with respect to three objectives; cost, environmental emission and customer service level. A multi objective genetic algorithm (MOGA) is developed to design fuzzy controllers to generate the Pareto optimal solutions. Various demand and return rates and their impacts on the network performance are investigated.
|Title of host publication||Proceedings of the 53rd Conference of the Operational Research Society 2011|
|Publisher||Operational Research Society|
|Publication status||Published - 2011|