基于双层规划的物流系统集成定位-运输路线安排-库存问题研究

为优化物流系统,并能更好地描述管理部门的阶层关系和更全面地体现决策者的意愿,从物流系统集成的角度出发,基于客户所采用的多时期随机库存策略,使用双层规划法建立了供应链二级分销网络中的设施选址、车辆运输路线安排、库存控制的集成优化模型,用来解决在给定的多个潜在设施点中选出一系列设施的位置,并确定巡回运输路线,以及巡回运输路线上客户的最佳订货量;并给出了求解该模型的启发式算法,最后通过实例计算证明了上述模型、算法的有效性.

Study on the Combined Location Routing and Inventory Problem in Logistics System based on Bi-level Programming

In order to optimize logistics system,describe the hierarchy of management section better,and express decision makers' will completely,from the point of integration,a bi-level programming method is proposed to establish the model of the combined location routing and inventory problem(CLRIP) for the twoechelon distribution network in the supply chain based on customers' multi-period inventory control policy with stochastic demands.CLRIP is used to allocate depots from several potential locations,to schedule vehicle routing,and determine customers' order quantities.A new heuristics algorithm is presented to solve the model.Finally,an example is given to illustrate the efficiency of the above models and methods.