联合库存的系统动力学模型研究

Model for Joint Inventory Based on System Dynamic

利用定点订货和准时采购策略与系统动力学建模思想,考虑生产、运输各个环节,建立了供需联合库存建立系统动力学动态模型。从生产时间、长鞭效应、订货三个方面分析了模型,结果表明:联合库存削弱了牛鞭效应带来的信息失真;生产时间与运输时间的缩短可以有效降低库存成本且进一步削弱了牛鞭效应;订货中,收获、订货周期长短与配送中心库存量没有关联,只影响订货量的大小,即周期越长则订货量越大。

model of effect an Combining fixed order, procurement strategy on inventory of supply and demand was er, the model was analyzed. Results s tortion caused by the bullwhip effect; the inventory time and syste From the aspec m dynamic, a system dynamic t of production time, bullwhip how that joint inventory weakens the information dis cost is reduced by reducing the production and trans port time. The size of inventory of the distribution center is not related to the inventory. The longer the circle of order is, the larger the order quantity is.