| With the constant change of external environment of supply chain, enterprises face more intense changes than the past for improving service, such as market demand, shorter delivery time, higher quality requirements, which not only bring some pressure but also opportunity and challenge. It's one of the most critical and difficult factor for a successful management and operation of the supply chain that how to eliminate or weaken the uncertain factors of supply chain; which is also attracted more attention from corporate managers and taken as the important source of sustainable competitive advantage for reducing operating costs throughout the supply chain and improving its services.This research on closed-loop supply-chain under the final product price fluctuations with robust optimization is divided into three parts. First of all, this paper introduces the research background, reviews the study situation of closed-loop supply chain optimization, analyzes the uncertain structure, form and the expression with inside and outside, and discusses three uncertain optimization methods including robust optimization, stochastic planning and fuzzy planning. Second, the paper establishes a class of product remanufacturing and supply chain robust operation model with robust optimization method, with fully considerating of the closed-loop supply chain operation; the supply chain includes a manufacturer, a supplier and a number of customers; suppliers produce components for manufacturers as the raw materials of the manufacturers, the manufacturers provide final products to customers. Finally, an illustrative case has been studied, which simulates the relationship among price volatility and the profit of suppliers, manufacturers and total profits, and the changes of the profit of suppliers manufacturers and gross profit through different recovery rates has been simulated. Through verification of the model examples, a conculution has been drawn that when the final product prices and recovery rate changes in a certain constraint area, there is no change of the robust operation of the strategy for the supply chain members. That is to say the model of this paper is robust of the uncertainty of final product prices and the recovery rate in a certain constraint area. |
