【Key words】 process capability; non-normal process; control charts; process capability index
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This paper firstly introduces the basic theory and knowledge of process capability index and some issues in the study of non-normal process capability and describes how to handle non-normal processes.
本文首先介绍了过程能力指数的基础理论和知识以及非正态过程能力研究的一些问题,并描述了非正态过程处理的实施步骤。
参考来源 - 非正态过程能力指数构建与评价研究·2,447,543篇论文数据,部分数据来源于NoteExpress
目前非正态过程能力指数的构建与评价研究是过程能力研究中的热点问题。
Therefore, the study on construction and appraisal of process capability index for non-normal processes is a hot issue to be solved.
传统的统计过程控制理论是基于正态分布这个基本假设的,而在实际生产过程中大量非正态过程传统SPC技术会失效。
Traditional SPC theory is based on a fundamental assumption that the process data are normal. However, in many conditions the process data are non-normal which makes traditional SPC theory invalid.
此外本文还给出了严格非负定条件下实正态过程存在的一个充要条件。
Besides, this paper gives a sufficient and necessary condition of the existence of normal process under the strictly nonnegative definiteness condition.
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