TY - JOUR ID - 54603 TI - Performance of CCC-r control chart with variable sampling intervals JO - Journal of Industrial Engineering and Management Studies JA - JIEMS LA - en SN - 2476-308X AU - Fallah nezhad, Mohammad Saber AU - Shamstabar, Yousof AU - Vali Siar, Mohammad Mahdi AD - Yazd university, Yazd, Iran. AD - K.N. Toosi University of Technology, Tehran, Iran. Y1 - 2017 PY - 2017 VL - 4 IS - 2 SP - 19 EP - 34 KW - Attribute control chart KW - variable sampling interval KW - CCC-r chart KW - average time to signal DO - 10.22116/jiems.2017.54603 N2 - The CCC-r chart is developed based on cumulative count of a conforming (CCC) control chart that considers the cumulative number of items inspected until observing r nonconforming ones. Typically, the samples obtained from the process are analyzed through 100% inspection to exploit the CCC-r chart. However, considering the inspection cost and time would limit its implementation. In this paper, we investigate the performance of CCC-r chart with variable sampling interval (CCC-rVSI chart). The efficiency of CCC-rVSI chart is compared with fixed sampling interval (FSI) scheme of CCC-r chart (CCC-rFSI chart) and CCCVSI chart. The comparison results show that CCC-rVSI chart is more efficient than the CCCVSI chart in reducing the average time to signal (ATS) and also CCC-rVSI chart performs better than CCC-rFSI chart. In addition, some sensitivity analyses are performed to illustrate the effect of the input parameters on the performance of CCC-rVSI chart. UR - https://jiems.icms.ac.ir/article_54603.html L1 - https://jiems.icms.ac.ir/article_54603_edb155e008e1930954e1665bfa3d8676.pdf ER -