价格波动下的生产-库存控制研究

Research on production-inventory control under fluctuating prices

研究原材料价格波动下多级生产-库存系统的控制问题.所有的原材料价格、半成品加工成本、成品的生产成本、库存费用率和产品的需求率都随时间变动,为此,分析了最优采购、加工、生产决策的必要和充分条件,得到了在某些假设条件下的最优生产-库存策略为JIT(Just-in-time)采购、加工、生产策略,或者为在最开始阶段以最大能力进行采购、加工、生产活动的Bang-Bang策略.

The control problem of multi-echelon production-inventory system under fluctuating raw material prices is studies.All the raw material price,processing cost of semi-finished product,production cost of finished product, inventory cost rate and finished product demand rate fluctuate over time.Therefore the necessary and sufficient conditions for the optimal procurement,processing and production decision are analyzed,and the optimal inventory policy under some assumption conditions are obtained to be JIT procurement,processing,and production policy,or executing the procurement, processing,and production activities at full speed at the very beginning of the planning horizon called the Bang-Bang policy.