摘要
First a remanufactming logistics network is con- structed, in which the structure of both the forward logistics and the reverse logistics are of two levels and all the logistics facilities are capacitated. Both the remanufactming products and the new products can be used to meet the demands of customers. Moreover, it is assumed that homogeneous facilities can be designed together into integrated ones, based on which a mixed integer nonlinear programming （MINLP） facility location model of the remanufacturing logistics network with six types of facilities to be sited is built. Then an algorithm based on enumeration for the model is given. The feasible combinations of binary variables are searched by enumeration, and the remaining sub-problems are solved by the LP solver. Finally, the validities of the model and the algorithm are illustrated by means of an example. The result of the sensitivity analysis of parameters indicates that the integration of homogeneous facilities may influence the optimal solution of the problem to a certain degree.
首先构建了一个再制造物流网络.在该网络中,正向物流和逆向物流都是双层结构,所有的设施均有能力限制,再制造产品和新产品都可以用来满足顾客的需求,且假设同类设施可以共同设计成集成设施.在此基础上建立了一个包含6种设施的再制造物流网络设施选址的混合整数非线性规划(MINLP)模型.然后给出了基于枚举的求解算法.用该算法搜索整型变量的可行组合,用线性规划软件解决剩下的子问题.最后,通过一个算例说明了模型和算法的有效性.参数灵敏度分析的结果表明,同类设施的集成可能在一定程度上影响问题的最优解.
基金
The National Natural Science Foundation of China(No.70472033).
