Statistical Merits of U Control Chart when Using VSSI Sampling Policy
Publish place: 16th Iran International Industrial Engineering Conference
Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IIEC16_174
تاریخ نمایه سازی: 12 مرداد 1399
Abstract:
Many researches have shown that the variable sampling schemes are more effective than the traditional static ones in improving statistical measures. The average number of false alarms (ANF), the average number of samples (ANS), the average number of inspected items (ANI), and the adjusted average time to signal (AATS) are the most important statistical measures that have always been attending in the evaluation of control charts. In this paper, a comprehensive analytical review on the U control chart by the statistical measures have been explained. For this purpose, different levels of the possible factors are determined and presented the results of calculating the statistical measures with the obtained parameters on the sampling schemes of the U control chart. It is shown that, generally, the variable U control charts are able to improve the effectiveness statistical.
Keywords:
The average number of false alarms (ANF) , The average number of samples (ANS) , The average number of inspected items (ANI) , The adjusted average time to signal (AATS) , Attribute U control chart , variable sampling schemes
Authors
Din Mohammad Imani
Assistant Professor, Department of Industrial Engineering, Iran University of Science & Technology
Mohsen Shojaie
Ph.D. Candidate, Department of Industrial Engineering, Iran University of Science & Technology