摘要
为实现对打叶复烤过程片烟结构的多个指标同时进行过程监控,保证片烟质量的稳定,以在云南省公司打叶复烤厂抽取的2009年片烟为样本,通过多变量统计分析,运用多变量T2控制图对打叶复烤过程片烟结构3个指标的稳定状况进行判断,并运用Bonferroin不等式原理对失控小组各个变量进行检验。结果表明,第7、11、17个小组打叶复烤过程稳定性出现失控,失控原因主要是小片率和中片率偏高。多元统计T2控制图可以对多变量同时监控,Bonferroin检验法对查找失控变量有一定的参考价值,多变量统计过程控制可以在打叶复烤过程得到有效应。图1,表2,参13。
In order to implement the process monitoring for various indexes of lamina structure at the same time and ensure the stability of lamina quality,the lamina samples,from Yunnan province threshing and redrying factory in 2009,were analyzed by multivariate statistical process control.The stability of the three indexes of lamina structure was judged by T2 diagram of multivariate statistical process control and every uncontrolled group variables were tested.The results showed that during threshing and redrying,stability of group 7 and 11and 17 out of control happened because medium partical content and small partical content was relatively high.Multivariate statistical process control could be applied in threshing and redrying process and many variables could be monitored simultaneously by T2 diagram of multivariate statistical process control and Bonferroin test have some reference value for finding the uncontrolled variables.
出处
《农业系统科学与综合研究》
CSCD
2011年第2期209-212,共4页
System Sciemces and Comprehensive Studies In Agriculture
基金
国家烟草专卖局科技攻关项目(110200801019)
关键词
多变量统计过程控制
T2控制图
打叶复烤
片烟结构
multivariate statistical process control
T2 controlling diagram
threshing and redrying
lamina structure
