Performance Analysis of Production Systems with Rework Loops
نویسنده
چکیده
This paper is devoted to the study of production systems with rework loops. Such systems are often encountered in manufacturing plants and accurate performance analysis is needed for design and continuous improvement. However, no analytical methods to evaluate its production rate are available in the current literature. In this paper, we present an aggregation procedure using overlapping decomposition approach to approximate the production rate for systems with rework loops. The idea is to decompose the system into four serial production lines, with machines modified to accommodate the interactions with other machines and buffers. A recursive procedure which analyzes serial lines during each iteration is presented. The convergence of the iterative procedure and the uniqueness of the solution are justified analytically. The accuracy of the estimate is evaluated numerically with good results.
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