资源能力受限的需求非平稳有限阶段订货模型

Limited stage supplies replenishment model with resource constrained and variable demand

通过对Wagner-Whitin方法的约束条件扩展,得到了改进的Wagner-Whitin方法,使其能够解决资源能力受限的需求非平稳订货问题.对无资源受限的需求非平稳订货、资源约束恒定的需求非平稳订货和资源约束周期变化的需求非平稳订货3种情况进行实例仿真和数值分析,得出在无资源约束时订货成本最小,随着资源约束量限度的增加,订货成本会阶段性减少等结论.

This paper studies the limited stage supplies replenishment model with resource constrained and variable demand. We extend the constraints of Wagner-Whitin model so that the improved algorithm can solve the problem. Based on computational experiments and numerical analysis of three conditions of the supplies replenishment problem with variable demand-uncapacitated, constant capacitated, and periodical changed capacitated, we conclude that the cost is minimum when there is no restriction on resource , and the cost will decrease discretely with the increasing restriction.