대용특성을 이용한 측정시스템 분석에 관한 연구
Measurement System Analysis Using a Screening Variable
대용특성 측정시스템 Measurement System 오차 파괴검사;
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Since 1996, many Korean companies such as Samsung, LG, Hyundai Motor Company, have adopted Six Sigma in order to get a competitive edge in the global marketplace. There are, however, many problems to be solved for successfully implementing Six Sigma in an organization. As is known, one of the key principles of Six Sigma is a data-based management or a decision making based on data. Therefore, Six Sigma requires more measurement than ever, which makes measurement system analysis more important. Usually, a gage R&R study is performed for identifying the measurement system's variation relative to process variation. In this thesis, a gage R&R study is considered for the case where measuring a major quality characteristic accompanies a destructive testing. We suggest a gage R&R study using a screening variable that is highly correlated with the major quality characteristic and also can be measured by a nondestructive testing method. It is assumed that the major quality characteristic and a screening variable have a bivariate normal distribution. A simulation study on the proposed method is performed and we compare it with the conventional gage R&R study for a destructive testing.