Comparison of different types of variability when using lot splitting in a dynamic open job shop
by Kurt Hozak
International Journal of Advanced Operations Management (IJAOM), Vol. 5, No. 3, 2013

Abstract: Previous shop floor control research has shown that lot splitting can improve flow time performance and that disruptions to smooth and even material flow through the production process are detrimental. We use a simulation model to extend the literature by differentiating between four types of variability that might disrupt material flow and by analysing their effects on the magnitude of flow time improvement from lot splitting in dynamic open job shops with a range of utilisations, setup to processing time ratios, and job sizes. We believe that we are the first to show that those types of variability have vastly different effects on how much flow time improvement lot splitting can offer. The findings will help manufacturers identify processes that will benefit the most from lot splitting and aid researchers in developing better experimental designs.

Online publication date: Mon, 28-Apr-2014

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