Bowman库存策略下的供应链稳定性及需求放大分析

Analysis of stability and demand amplification of supply chain based on Bowman inventory policy

为了研究不同库存策略对供应链稳定性的影响,基于一般线性需求预测,在考虑在途库存的Bowman库存补给策略和不考虑在途库存的(R,S)库存补给策略2种情况下,研究了供应链的稳定性,并在考虑在途库存的Bowman库存补给策略下对需求放大进行了度量和分析.结果表明:在考虑在途库存的Bowman库存补给策略下,当订单平滑参数满足0<γ≤1时供应链稳定;不考虑在途库存的(R,S)库存补给策略,当提前期由小于2变到等于2再变到大于2时,供应链从稳定变到边际稳定再变到不稳定;考虑在途库存的Bowman库存策略中,不同的参数对需求放大程度会产生不同的影响,合理选择参数可以减小需求放大程度.

The supply chain stability in the case of Bowman inventory policy considering inventory-on-transit and the case of(R,S) inventory policy—a special Bowman policy ignoring inventory-on-transit is researched based on general linear demand forecast.The demand amplification under Bowman inventory policy considering inventory-on-transit is measured and analyzed.In the case of Bowman inventory policy considering inventory-on-transit,the supply chain is stable when the order smoothing parameter γ satisfies 0<γ≤1.In the case of(R,S) inventory policy ignoring inventory-on-transit,the supply chain is stable,marginally stable and unstable as the lead time being less than 2,equal to 2 and more than 2,respectively.The effect of various parameters on the demand amplification is also analyzed,and it shows that the demand amplification can be reduced by choosing appropriate parameters.