CAJ | 학술논문

在一般的二级库存优化模型均做如下假定：供应链的每一级节点面临的需求都是独立需求。但在实际中，只有最下游的节点面临的需求是独立需求，而其上游节点面临的需求都是与之相关的相关需求。因此，建立了基于混合需求的协同订货模型。将面临独立需求的最下游节点的订货合并为一个虚拟节点的订货策略，再对二级节点采用相关需求策略进行协同订货，从而构建使整体最优的模型。并给出了模型求解的遗传算法，最后对模型进行了实例演算。
재일반적이급고존우화모형균주여하가정：공응련적매일급절점면림적수구도시독립수구。단재실제중，지유최하유적절점면림적수구시독립수구，이기상유절점면림적수구도시여지상관적상관수구。인차，건립료기우혼합수구적협동정화모형。장면림독립수구적최하유절점적정화합병위일개허의절점적정화책략，재대이급절점채용상관수구책략진행협동정화，종이구건사정체최우적모형。병급출료모형구해적유전산법，최후대모형진행료실례연산。
In the general two-echelon inventory models, there exists a common assumption:the demand of every echelon is independent. But in fact, only the demand of the downstream node is independent, and the upstream node is correlated with the independent demand. Therefore, the collaborative ordering models of two-echelon inventory system based on hybrid demand are constructed. The different downstream nodes’ordering can be transformed into a virtual node’s ordering. The upstream node takes a collaborative ordering. Thus, through constant adjustment of the downstream nodes’orders, it can get the optimal strategy to make system inventory cost minimum. Then the genetic algorithms of these models are given. The simulation shows that they are good ways to get the satisfied order policy.