Workload Control Order Release in General and Pure Flow Shops with Limited Buffer Size Induced Blocking:An Assessment by Simulation

Thurer, Matthias and Ma, Lin and Stevenson, Mark (2020) Workload Control Order Release in General and Pure Flow Shops with Limited Buffer Size Induced Blocking:An Assessment by Simulation. International Journal of Production Research. ISSN 0020-7543

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Abstract

Most manufacturing shops in practice have limited physical space in front of each workstation, due, for example, to physical, economical or operational constraints. As a result, a job may cause blocking because it has to remain at a given station after an operation has been completed until space in front of the next station in its routing becomes available. Despite this practical reality, the Workload Control literature typically assumes infinite buffer limits and therefore neglects the impact of blocking. Using simulation, we highlight the direct, detrimental impact of blocking in both the pure and general flow shop. Workload Control order release dampens the effect of blocking and improves overall performance. This makes Workload Control order release even more important in the context of shops with blocking or physical space constraints. Further analysis reveals that the impact of blocking is less pronounced in the pure flow shop given its directed routing. Finally, most of the blocking that occurs is because jobs cannot enter the shop, i.e. there is no space in front of the gateway station. This re-emphasises the close relationship between blocking and release methods that limit the workload, and it highlights the importance of workload balancing.

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Production Research
Additional Information:
This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Production Research on 06 Mar 2020, available online: https://www.tandfonline.com/doi/abs/10.1080/00207543.2020.1735667
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2209
Subjects:
ID Code:
140173
Deposited By:
Deposited On:
08 Jan 2020 14:00
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 08:17