嵌入Supply-hub的供应链联合生产与订货批量模型研究

A Study of Joint Lot Size Model for Product Manufacturing andMaterial Ordering in the Supply Chain with Supply-Hub

考虑JIT环境下基于Supply-hub的供货模式,建立了制造商、Supply-hub和供应商的平均成本函数,提出了供应链分散决策和集中决策情形下的制造商和供应商的生产与订货批量模型。结果表明,制造商的生产批量在供应链分散决策时变化无规律,而在供应链集中决策时随着供应商与Supply-hub之间距离的增加而增加;相比分散决策,供应链集中决策时制造商的成本增加而供应商的成本减少,而整个供应链的总成本减少,供应商可以通过转移支付让制造商和供应商均受益,从而实现整个供应链的帕累托优化,随着供应商与Supply-hub之间的距离增加,协调能够让供应链得到更多的收益。

Considering the supply pattern based on supply-hub under the Just-in-Time environment, the cost functions of manufacturer, supply-hub and supplier are established. Two supply chain lot size models for product manufacturing and material ordering are proposed under different decision modes： one is proposed under decentralized model based on Stackelberg model, the other is proposed under centralized model of the integrated supply chain. The results show that the manufacturer＇s production lot size changes disorderly under decentralized model, but it increases along with the increase of the distance between supplier and supply-hub under centralized model. Compared to decentralized model, the total cost of manufacturer increases but the total cost of both suppher and the whole supply chain decreases under centralized model. Through appropriately reducing material transfer price, the whole supply chain may achieve Pareto optimization since the manufacturer and supplier can obtain a win-win solution, and the farther distance between supplier and supply-hub, the more benefit the whole supply chain can get by coordination.