Setting inventory levels of CONWIP lines via linear programming

Helber, Stefan ; Schimmelpfeng, Katja ; Stolletz, Raik

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Document Type: Article
Year of publication: 2011
The title of a journal, publication series: Business Research : BuR
Volume: 4
Issue number: 1
Page range: 98-115
Place of publication: Göttingen
Publishing house: Springer
ISSN: 2198-3402 , 2198-2627
Publication language: English
Institution: Business School > ABWL u. Produktion (Stolletz)
Subject: 650 Management
Keywords (English): 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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