文档介绍：上海交通大学工程硕士学位论文摘要
精益六西格玛在服务备件库存管理中的应用
摘要
售后服务已经成为工业产业的第三桶金,其中,服务备件的及时响
应是实现售后服务承诺的重要保证因素。由于需求的不确定性,服务备
件的库存和提前期管理较为复杂,其安全库存量的设置需要在提高服务
水平与降低库存持有成本间取得平衡。本文引入精益六西格玛,选用空
压机服务备件库存管理作为项目载体,验证该理论在该领域的应用可行
性。精益六西格玛融合了精益思想与六西格玛改进的精髓,应用
DMAICL(定义—测量—分析—改善—控制—推广)模式,辨识服务备件管
理流程中的增值和非增值活动,将价值辨识的思想与数据分析严密结合,
以库存周转率和备件提前期作为问题改善点,应对客户设备维修的需求
不确定性,基于服务水平设置安全库存,提高售后服务响应速度。项目
改善的结果是库存周转率由提高到 4,备件订购提前期缩短 21%,验
证了该方法在解决服务备件库存上是可行和有效的。研究创新点在于:1)
将服务备件管理视作流程运作过程,考虑了库存周转率和提前期,取得
突破性改进成果;2)在改进阶段中,针对服务备件不同于成品备件的特
殊性,提出了基于服务水平和需求预测的安全库存设置方案;3)用英格
索兰公司的空压机服务备件管理案例重现了精益六西格玛的 DMAICL 模
式,并提出了精益六西格玛在这方面应用的通用性与特殊所在。最后,
对以后的研究做出了展望。

关键词:服务备件库存管理,精益六西格玛,库存周转率,提前期,安
全库存, DMAICL
第 I 页
上海交通大学工程硕士学位论文 ABSTRACT
The Application of Lean Six-sigma In Service Spare Parts
Inventory Management

ABSTRACT
After-sales service has e a rich resource of profit, and timely
response for service spare parts requirement is supposed to be an very
important factor to promise satisfactory after-sale service to customers. Due
to uncertainty and non-predictability, the spare parts inventory and lead time
management e relatively difficult, requiring a balance between
improving service quality and reducing inventory cost. This paper introduced
Lean six-sigma and applied it on a project of spare parts inventory
improvement for pressors in Ingersoll Rand. It proves that Lean
six-sigma is feasible and efficient to solve our problem. Lean six-sigma
integrates methodology of lean thinking and six-sigma together, and utilize
DMAICL (Define-Measure-Analyse-Improve-Control-Leverage) to identify
non value-added activities in business process in order to cope with changing
customer needs and improving the service response. Lean six-sigma connects
value identifying and data analysis together. In this paper, it is used to focus
on inventory turnover and lead time to meet customer needs. In the stage of
improvement, safety stock is set based on service level pan