A Time Truncated Moving Average Chart for the Weibull Distribution

IEEE Access

Chi-Hyuck Jun¹  Muhammad Aslam²  Saeed Ahmad Dobbah Alghamdi²  Khushnoor Khan² 

[1] Department of Industrial and Management Engineering, POSTECH, Pohang, South Korea;Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;

关键词: Control chart;    average run length;    weibull distribution;    defective items;   

DOI  :  10.1109/ACCESS.2017.2697040

来源: DOAJ

【 摘 要 】

A control chart of monitoring the number of failures is proposed with a moving average scheme, when the life of an item follows a Weibull distribution. A specified number of items are put on a time truncated life test and the number of failures is observed. The proposed control chart has been evaluated by the average run lengths (ARLs) under different parameter settings. The control constant and the test time multiplier are to be determined by considering the in-control ARL. It is observed that the proposed control chart is more efficient in detecting a shift in the process as compared with the existing time truncated control chart.

【 授权许可】

Unknown