含时滞的不确定性供应链网络系统牛鞭效应控制策略及其经济性能分析

Bullwhip effect control strategy and economic performance in uncertain supply chain networks with lead time delays

考虑需求、生产能力、供应链结构等内外不确定性因素和供应链系统运作延迟,构建了不确定环境下含时滞的供应链库存网络系统状态转移模型.针对牛鞭效应问题,提出了基于库存水平波动状态的控制策略和相应的经济性能指标;借助线性矩阵不等式方法,深入分析库存策略的参数优化设计对牛鞭效应以及经济性能的影响.仿真结果表明,在经济性能约束下,该库存策略具有较强的牛鞭效应遏制能力,从而表明了策略的有效性和实用性.

A supply chain inventory network system state transition model is presented, which includes the uncertainties of demand, production capacity, supply chain network structure and the lead time delays. To minimize the negative effect of bullwhip effect, a dynamic inventory control strategy and its economic performance indicators are proposed. Then a sufficient condition for the effective inventory control policy of the uncertain supply chain networks with lead time delays is given in terms of the linear matrix inequalities（LMIs）. Simulation study shows the effectiveness and feasibility of the proposed inventory policy in reducing bullwhip effect.