Optimal positioning of safety stocks in MRP
Optimal positioning of safety stocks in MRP
复制标题
MRP 中安全库存的优化定位
DOI：
10.1080/00207549308956823
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
E. Anderson
中科院分区：
文献类型：
--
作者：
A. Lagodimos;E. Anderson
考虑了MRP环境下多级生产网络中安全库存的定位问题。我们的目标是在给定的安全库存总量下最大限度地提高服务水平。以往大多数考虑MRP环境的研究都是经验的或启发式的，但我们采取的方法是分析的，并集中在两种网络类型：序列网络和发散网络。利用先前关于MRP排序逻辑的结果，我们证明了在串行网络中，最优策略将所有安全库存置于末端库存点。这一结果与需求的随机性质、不确定性的类型和所使用的服务措施无关。由于物料配给的需要，对发散网络的分析更为复杂。我们表明，最优策略可能取决于可用安全库存的总量、需求的可变性、交货时间的结构、配给政策的选择和所使用的服务的度量。
The positioning of safety stock in multi-echelon production networks operating in an MRP environment is considered. Our aim is to maximize the service level achieved for a given total amount of safety stock. Most previous research considering MRP environments has been empirical or heuristic, but the approach we take is analytic and concentrates on two network types: serial and divergent networks. Using previous results on the MRP ordering logic, we show that in serial networks the optimal policy positions all safety stock at the end stock-point. This result is independent of the stochastic nature of the demand, the type of uncertainty and the measure of service used. The analysis of divergent networks is more complicated because of the need for material rationing. We show that the optimal policy may depend on the total amount of safety stock available, the variability of the demand, the structure of the lead times, the choice of the rationing policy and the measure of service used.