摘要
考虑提前期内需求服从混合正态分布且提前期为可变情形下,建立由购买商和供应商所组成的简单供应链的集成优化模型,并设计相应的算法对模型进行求解.结合具体算例对模型进行应用分析,结果表明,模型具有可操作性和实用性.运用算例进行灵敏度分析,结果表明:运输车辆数量、购买商订单成本和购买商单位库存成本对最优提前期的影响不明显;随着运输车辆数量的增加,运输车辆最优载荷量的变化规律不是很明显,但供应链成本却呈现上升趋势;随着购买商订单成本的增加,运输车辆最优载荷量和供应链总成本呈现上升趋势;随着购买商单位时间内单位库存成本的增加,运输车辆最优载荷量呈现下降趋势,供应链总成本呈现上升趋势.
Considering demand during lead time with mixtures of normal distribution and variable lead time, the integrated optimization model for a supply chain consisted with a buyer and a supplier is developed, and the corresponding algorithm is developed to find the solution to the model. A numerical example is given to demonstrate the effectiveness of the model and perform the sensitivity analysis. It is shown from the analysis that the buyer＇ s optimal order quantity is not sensitive to the number of shipments and the supply chain cost is increasing in the number of shipments; the buyer＇ s optimal order quantity and supply chain cost are increasing in the buyer＇ s order cost; the buyer＇ s optimal order quantity is decreasing＂ in the buyer＇ s unit holding cost and supply chain cost is increasing in the buyer＇ s unit holding cost.
出处
《上海海事大学学报》
北大核心
2006年第2期51-55,共5页
Journal of Shanghai Maritime University
基金
上海市教委项目(05FZ11)
上海市重点学科建设项目(T0602)
关键词
需求分布
可变提前期
供应链
demand distribution
variable lead time
supply chain
