基于测量系统能力的多变量工序能力指数模型

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (12): 1999-2002.

基于测量系统能力的多变量工序能力指数模型

刘磊，刘利

（上海交通大学机械与动力工程学院，上海 200240）

收稿日期:2011-11-09 出版日期:2012-12-29 发布日期:2012-12-29
基金资助:
上海汽车工业科技发展基金项目（1010）

Multivariate Process Capability Indices Calculation Model Based on Gauge Capability

LIU Lei, LIU Li

(School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2011-11-09 Online:2012-12-29 Published:2012-12-29

摘要/Abstract

摘要： 综合了以往多变量工序能力计算模型的基础上，提出了一种基于测量系统能力的指数计算模型.该模型加入了新的影响因子——测量系统能力，并将测量系统的误差反映到计算模型中，实例分析表明，忽略测量系统能力的指数模型低估了工序能力，提出的新算法纠正了这一偏差，更能反映生产工艺的实际情况.

关键词: 测量系统能力, 测量误差, 多变量工序能力指数

Abstract: On the basis of previous calculation model of multivariate process capability index, a new model based on gauge capability was presented. A new factor—gauge capability was introduced into this model, which reflects the gauge measurement errors. The real example shows that the previous calculation models which ignore the gauge measurement errors underestimate the process capability indices, while this new model can correct the deviation and better reflect the real manufacturing situation.

Key words: measurement system capability, measurement system error, multivariate process capability indices

中图分类号:

TH 39

刘磊, 刘利. 基于测量系统能力的多变量工序能力指数模型[J]. 上海交通大学学报（自然版）, 2012, 46(12): 1999-2002.

LIU Lei, LIU Li. Multivariate Process Capability Indices Calculation Model Based on Gauge Capability[J]. Journal of Shanghai Jiaotong University, 2012, 46(12): 1999-2002.