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Journal of the Korean Society for Quality Management > Volume 38(4); 2010 > Article
Journal of the Korean Society for Quality Management 2010;38(4): 540-.
공정평균의 변화율이 정규분포인 제조공정의 최적 목표값
이재훈1, 박태호2, 권혁무3, 홍성훈4, 이민구5
2산호세주립대학교 경영대학
3부경대학교 시스템경영공학과
4전북대학교 산업정보시스템학과
5충남대학교 정보통계학과
Optimum target values for manufacturing processes when drifting rate in the process mean is normally distributed
Jae-Hoon Lee1, Tae-Ho Park2, Hyuck-Moo Kwon3, Sung-Hoon Hong4, Min-Koo Lee5
1Embrain. Co., LTD.
2Department of Organization and Management, College of Business, San Jose State University
3Department of Systems and Management Engineering, Pukyong National University
4Department of Industrial & Information Systems Engineering, Research Center of Industrial Technology, Chonbuk National University
5Department of Information & Statistics, Chungnam National University
We consider the problem of selecting the most profitable initial process mean and length of production cycle for manufacturing processes subject to a constant linear trend during the same cycle that varies after resetting the processes. Assuming that the quality characteristic of interest is normally distributed, the optimum initial process mean and the length of production cycle are jointly obtained by minimizing the expected loss per unit time. We assume that the quality loss function due to the deviation from the target value is quadratic and resetting loss is constant. We consider both cases of symmetric and asymmetric quality loss function. An illustrative example is given and sensitivity analysis performed.
Key Words: Optimum Target Value;Process Mean Shift;Linear Shift;Production Cycle;
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