服装业供应链的系统动力学模型分析

Analysis of system dynamics model in garment supply chain

在分析我国服装业供应链运作的基础上,总结出服装业供应链普遍存在的一些问题,指出服装用户需求的变化给服装企业带来的需求预测风险。为了研究在基于供应商管理库存(VMI)补货模式下,供应链的动态反馈方式,考察其运作效率,利用系统动力学的方法为某服装企业构建了系统动力学仿真模型。通过仿真,定量地对比了非VMI及VMI模式下,供应链各成员的订单及库存情况。从仿真计算结果可知,采用供应商管理库存比传统的供应链运作能更有效地减少服装业供应链的牛鞭效应,减少供应链各个成员的库存及订单量波动,提高各个结点对风险的抵抗作用。

Having analyzed the operation of the supply chain of the garment sector of China, the problems existed in the garment supply chain are discussed, pointing out that the customers demand brings about demand forecast risk for garment enterprises. To investigate the effect of vendor （VMI）-based policy for supply chain, a system dynamics common change managed inventory model was developed for a garment enterprise based on examing the feedback mode of dynamic information of the supply and its operation efficiency and u tilizing method of system dynamics. The order and inventory situations of each member of the supply chain in VMI and non-VMI are presented by simulation and quantitative comparison. The results show that when compared with traditional supply chain operation, the bullwhip effect on a VMI system was becoming weakened. The inventory and order of the supply chain members are more placidity. At the same time, the ability of risk resistance is improved.