Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Journal of Engineering and Technological Sciences
Dradjad Irianto
Manufacturing Systems Research Group FTI, Institute of Technology Bandung
Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
A Two Control Limits Double Sampling Control Chart by Optimizing Producer and Customer Risks Dradjad Irianto; Ani Juliani
Journal of Engineering and Technological Sciences Vol. 42 No. 2 (2010)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.eng.sci.2010.42.2.5

Abstract

Standard Shewhart process control chart has been widely used, but it is  not  sensitive  in  detecting  small  shift.  A  number  of  alternatives  have  been proposed to improve the  capability  of control chart. The double sampling (DS) control chart is aimed at improving the capability to detect any small shift out-of control  condition  by  observing  the  second  sample  without  interruption.  The capabilities  of DS control chart were measured as the expected sample size (as a measure  of  inspection  cost)  or  the  control  chart  power  (as  a  measure  for customer  risk).  Optimization  of  these  criteria  is  used  to  determine  the  control limits.  In  this  paper,  we  optimize  both  producer  and  customer  risks  under  a certain expected number of sample sizes as the constraint. Comparing the result to  the  previous  procedure  that  only  optimize  customer  risk,  the  proposed optimization  procedure  gives  the  same  first  control  limit  but  smaller  second control limits with higher value of control chart power.
Co-Authors Ani Juliani