A double-sampling SPM scheme for simultaneously monitoring of location and scale shifts and its joint design with maintenance strategies
A double-sampling SPM scheme for simultaneously monitoring of location and scale shifts and its joint design with maintenance strategies
复制标题
同时监测位置和尺度变化的双采样SPM方案及其与维护策略的联合设计
DOI：
10.1016/j.jmsy.2019.11.009
复制
发表时间：
2020-01-01
影响因子：
12.1
通讯作者：
Xie, Min
中科院分区：
文献类型：
--
作者：
Huang, Shuo;Yang, Jun;Xie, Min
Joint design of SPM (Statistical Process Monitoring) and maintenance strategies has evolved as a popular research topic in industrial engineering. Most existing works only consider location shifts of a process but neglect the effects of scale shifts. Besides, traditional SPM schemes are usually employed based on the single-sampling plan, which might be insensitive to detect quality shifts and perform uneconomically from the cost-saving perspective. To overcome the drawbacks mentioned above, this paper proposes a double-sampling SPM scheme for simultaneously monitoring of location and scale shifts, and then develop a more realistic and effective model for the joint design of SPM and maintenance strategies. Firs-sampling plan for simultaneously monitoring location and scale shifts. The comparison results indicate that our proposed DS (double-sampling) scheme has a faster detection speed than the single-sampling one for different combination of shifts. Therefore, we combine our proposed SPM scheme with two widely used maintenance strategies: corrective maintenance and prevent maintenance, and then construct a new cost model under the constraints of sample size, operation time and ARL (average run length). A real case study is implemented to verify the effectiveness of the proposed method. Results demonstrate that the proposed model is more economical than the traditional method.
