The Chinese Journal of Nonferrous Metals
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
|第13卷 第11期 总第80期 2016年11月|
(中南大学 交通运输工程学院,湖南 长沙 410075)
摘 要: 为从整体效率出发确定供应链受损后的修复方案,通过调节供应链网络的连边权重来模拟其受损状况,对有限修复资源进行分配,以供应链网络效率为指标寻找最优方案。以BBV(Barrat-Barthelemy-Vespignani)模型为基础,结合企业之间的当量物流量和空间距离计算连边权重,从有向加权复杂网络的角度建立供应链网络模型。结合连接阻力对最短路径公式进行改进,设计出基于节点间平均最小合作阻力的供应链网络效率指标。分别从全局受损和某节点受损进行供应链的修复研究,并且找到效率最优方案。研究结果表明:由于供应链网络的节点、连边之间相互影响,不同的节点、连边组合会产生不同的效果,从供应链网络效率角度考虑修复方案更具全局意义。
（School of Trafficand Transportation Engineering,Central South University,Changsha 410075,China）
Abstract:In order to study the repair mechanism of damaged supply chain from the perspective of overall efficiency, the weight of the supply chain links was adjusted to simulate the damage of the supply chain, allocate limited repair resources, and find the optimal solution with supply chain network efficiency as the index. Logistics volume and spatial distance were combined to calculate the weight of links, and a directed weighted supply chain network model was established on the basis of BBV. The formula of the shortest path combined with connection resistance was improved, and the efficiency index of supply chain network was designed based on the average minimum cooperation resistance between nodes. Supply chain repair mechanism was studied from the global damage and the damage of one node, and the optimal efficiency scheme was found. Results show that due to the mutual influence existing between nodes and links, different combinations of nodes and links can produce different effects, while the restoration scheme has more global significance from the point of the efficiency of supply chain network.
Key words: supply chain;network efficiency;complex network;BBV;repair mechanism