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題名 Minimum loss design of asymmetric X and S control charts under two independent Weibull shocks
作者 楊素芬
Yang, Su-Fen ; Rahim, M.A.
關鍵詞 Weibull shock model; x-bar charts; s-control charts; renewal reward processes; control charts; SPC; statistical process control; minimum loss cost models
日期 2009.03
上傳時間 19-Dec-2008 09:12:47 (UTC+8)
摘要 This paper proposes a minimum loss cost model for the joint economic design of an x-bar chart and an s-control chart for monitoring both the process mean and process variance simultaneously. The process is subject to the occurrences of two independent Weibull shocks each having increasing failure rates. One shock shifts the process mean and the other shock changes the process variance. When the failure mechanism obeys a Weibull shock model, the length of the sampling interval should vary with the age of the system. This approach is more appropriate than the traditional uniform sampling approach to keep the length of sampling intervals constant. The loss cost model, including an asymmetric quadratic loss function, emphasises the importance of continuously reducing performance variation and overcomes the difficulty in estimating various quality costs. Application of the proposed model is demonstrated through numerical examples.
關聯 International Journal of Productivity and Quality Management, Issue Volume 4, Number 3, Pages 247-282
資料類型 article
DOI http://dx.doi.org/10.1504/IJPQM.2009.023697
dc.creator (作者) 楊素芬zh_TW
dc.creator (作者) Yang, Su-Fen ; Rahim, M.A.-
dc.date (日期) 2009.03en_US
dc.date.accessioned 19-Dec-2008 09:12:47 (UTC+8)-
dc.date.available 19-Dec-2008 09:12:47 (UTC+8)-
dc.date.issued (上傳時間) 19-Dec-2008 09:12:47 (UTC+8)-
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/18034-
dc.description.abstract (摘要) This paper proposes a minimum loss cost model for the joint economic design of an x-bar chart and an s-control chart for monitoring both the process mean and process variance simultaneously. The process is subject to the occurrences of two independent Weibull shocks each having increasing failure rates. One shock shifts the process mean and the other shock changes the process variance. When the failure mechanism obeys a Weibull shock model, the length of the sampling interval should vary with the age of the system. This approach is more appropriate than the traditional uniform sampling approach to keep the length of sampling intervals constant. The loss cost model, including an asymmetric quadratic loss function, emphasises the importance of continuously reducing performance variation and overcomes the difficulty in estimating various quality costs. Application of the proposed model is demonstrated through numerical examples.-
dc.format application/en_US
dc.language enen_US
dc.language en-USen_US
dc.language.iso en_US-
dc.relation (關聯) International Journal of Productivity and Quality Management, Issue Volume 4, Number 3, Pages 247-282en_US
dc.subject (關鍵詞) Weibull shock model; x-bar charts; s-control charts; renewal reward processes; control charts; SPC; statistical process control; minimum loss cost models-
dc.title (題名) Minimum loss design of asymmetric X and S control charts under two independent Weibull shocksen_US
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1504/IJPQM.2009.023697-
dc.doi.uri (DOI) http://dx.doi.org/10.1504/IJPQM.2009.023697-