基于（s，S）和CONWIP策略下的分布式库存系统研究

发布时间：2018-04-23 23:41

本文选题：分布式库存(s + S)补货策略　；参考：《昆明理工大学》2017年硕士论文

【摘要】：随着市场经济的繁荣,全球经济一体化的不断加深。加上近年来我国对“一带一路”进程的不断推动,越来越多的企业逐步扩大经营规模踏出国门。伴随着规模的扩大,大部分企业开始采用分布式库存系统来进行管理,因此合适的分布式库存系统管理策略能够帮助企业提升市场竞争力和继续扩大规模。本文通过研究和总结分布式库存的理论研究与应用现状,通过对系统动力学理论和方法的学习与应用,以一个制造商、一个供应商和三个零售商构建了一个三级分布式库存系统。该典型分布式库存是以(s,S)补货策略为基础,当该系统中某一节点的库存水平低于s大于紧急调拨点时,则向上游节点请求补货。同时该系统的信息流是共享的。在此系统的基础上,在末端节点加入了紧急调拨策略,实现系统内的协同合作。对该系统进行了仿真验证,证明了加入紧急调拨策略后,零售商节点提高了客户服务水平、实现了节点间的过量库存的互相流动和降低了整体成本。为了更加深入的对分布式库存系统进行研究,将CONWIP生产控制方法进行改进后引入了供应链系统中。同时验证了CONWIP策略对于整体供应链的影响。CONWIP策略能够调控整体库存水平,并且能够使得上游节点的库存进行下移,积极发挥紧急调拨策略的作用,增强库存节点间的协同合作。另外本文对WIP上限值进行了分析,对不同WIP值对系统的影响进行了图表说明。最后为了验证CONWIP和紧急调拨策略在解决现实问题中的有效性,以X、Y、Z三家医院血液存储和使用作为应用对象进行仿真分析,验证了两种策略对于医院库存系统在应对突发事件时,从库存状态和病患服务水平上都有所提升,在一定程度上增强了系统的抗压能力。
[Abstract]:With the prosperity of market economy, global economic integration is deepening. In recent years, more and more enterprises expand their business scale and step out of the country. With the expansion of scale, most enterprises begin to use distributed inventory system to manage, so appropriate distributed inventory system management strategy can help enterprises to enhance market competitiveness and continue to expand the scale. In this paper, by studying and summarizing the current situation of distributed inventory theory research and application, through the study and application of system dynamics theory and method, a manufacturer, A three-level distributed inventory system was constructed by a supplier and three retailers. The typical distributed inventory is based on the replenishment strategy. When the inventory level of a node in the system is lower than s than the emergency allocation point, the upstream node is requested to replenish the inventory. At the same time, the information flow of the system is shared. On the basis of this system, an emergency allocation strategy is added to the terminal node to realize cooperative cooperation within the system. The simulation results show that the retailer node can improve the customer service level, realize the flow of excessive inventory and reduce the overall cost after the emergency allocation strategy is added to the system. In order to study the distributed inventory system more deeply, the CONWIP production control method is improved and introduced into the supply chain system. At the same time, it is verified that the influence of CONWIP strategy on the whole supply chain. ConWIP strategy can control the overall inventory level, and can make the upstream node inventory move down, actively play the role of emergency allocation strategy, and enhance the collaborative cooperation between inventory nodes. In addition, the upper limit value of WIP is analyzed, and the influence of different WIP value on the system is illustrated. Finally, in order to verify the effectiveness of CONWIP and emergency allocation strategy in solving the practical problems, the paper takes the blood storage and use of three hospitals as the application object to simulate and analyze the two strategies, and verifies that the two strategies are useful for the hospital inventory system to deal with emergencies. The inventory status and patient service level are improved to some extent, and the system's anti-pressure ability is enhanced to a certain extent.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F274

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