关键词: 集群式供应链, 跨链采购, 云制造, 有限超储, 采购契约

Abstract: Cluster supply chain is a kind of cloud manufacturing service platform in which multiple supply chains network rooted in industrial cluster.This platform provided practical conditions for different chains implementing cross-chain purchase.Based on this,cross-chain purchasing models without contract for cluster supply chain were established,and the extension of cross-chain purchasing models for cluster supply chain under Limited Over-Stock Contract (LOSC) was also built.Meanwhile the corresponding algorithms were presented.Study results suggested that all the participants'total cost was the highest under non-cross chain purchasing model without contract,but the total cost was lowest came from the cross-chain purchasing model with LOSC.In addition,the market demand had a significant influence on the whole system's purchasing cost.Especially,when the over-stock of purchaser's upper bound to a certain point,the quantity,frequency and cost of order could maintain stable.Thus the effectiveness and feasibility of proposed method were proved.

Key words: cluster supply chain, across-chain purchasing, cloud manufacturing, limited over-stock, purchasing contract