Minimization of Inspection Cost in an Inspection System Considering the Effect of Lot Formation on AOQ

In this paper, we readdress the optimization problem for minimizing the inspection cost in a back-light unit inspection system, which forms a network including a K-stage inspection system, a source inspection shop, and a re-inspection shop. In order to formulate our objective function when the syste...

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Bibliographic Details
Published in:Management science & financial engineering 2010, 16(1), , pp.119-135
Main Author: Yang, Moonhee
Format: Article
Language:English
Subjects:
경영학
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Summary:In this paper, we readdress the optimization problem for minimizing the inspection cost in a back-light unit inspection system, which forms a network including a K-stage inspection system, a source inspection shop, and a re-inspection shop. In order to formulate our objective function when the system is in a steady state, assuming that the number of nonconforming items in a lot follows a bi-nomial distribution when a lot is formed for inspection, we make a steady-state network flow analysis between shops, and derive the steady-state amount of flows between nodes and the steady-state fraction defectives by solving a nonlinear balance equation. Finally we provide some fundamental properties and an enumeration method for determining an optimal value of K which minimizes our objective function. In addition, we compare our results numerically with previous ones. KCI Citation Count: 1
ISSN:2287-2043
2287-2361