CONWIP , flow lines , inventory , linear programming
Abstract:
This paper treats the problem of setting the inventory level and optimizing the buffer allocation of
closed-loop flow lines operating under the constant-work-in-process (CONWIP) protocol. We solve a
very large but simple linear program that models an entire simulation run of a closed-loop flow line in
discrete time to determine a production rate estimate of the system. This approach introduced in Helber,
Schimmelpfeng, Stolletz, and Lagershausen (2011) for open flow lines with limited buffer capacities is
extended to closed-loop CONWIP flow lines. Via this method, both the CONWIP level and the buffer
allocation can be optimized simultaneously. The first part of a numerical study deals with the accuracy
of the method. In the second part, we focus on the relationship between the CONWIP inventory level
and the short-term profit. The accuracy of the method turns out to be best for such configurations that
maximize production rate and/or short-term profit.
Dieser Eintrag ist Teil der Universitätsbibliographie.
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