基于供应成本的维修备件协同库存控制模型及其算法研究

Cooperative Inventory Control Model and Algorithm of Equipment′s Spare Parts Based on Supply Cost

通过对维修备件库存控制方法的分析研究,提出了基于供应优化维修备件计划库存的方法,建立了维修备件协同库存模型结构和基于供应成本的维修备件协同库存控制数学模型。基于遗传算法提出了一种以供应成本为优化目标的多约束协同库存控制数学模型求解算法,实例验证了该模型及其求解算法的正确性。

Aim. The inventory control models of Refs. 1 through 8 are, in our opinion, not completely adaptable to cooperative inventory control. So we propose a cooperative inventory control model and algorithm of equipment＇s spare parts based on supply cost. In the full paper, we explain in detail our cooperative inventory control and algorithm; in this abstract, we just add some pertinent remarks to the four topics of our explanation： （A） model structure; Fig. 1 in the full paper show,; the schematic of our cooperative inventory control model based on supply cost; Fig. 1 includes coordination center, multi-user supply inventory and user requirements; three kinds of supply principles are explained; （B） description of problem; three assumptions in constructing our cooperative control model are explained; （C） cooperative control model; the model observes three restrictions concerning the maximum storage of inventory, the maximum supply time and the supply cost; （D） algorithm for cooperative inventory control model; the algorithm includes 8 steps; steps 2 and 4 utilize genetic algorithm. Finally we give a numerical simulation example, whose results are given in Tables 1 and 2 and Fig. 2 in the full paper. These results show that the equipment＇s spare parts cooperative inventory control mathematical model and its optimal algorithm are effective.