Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Improving the applicability of workload control (WLC)
T2 - the influence of sequence dependent set-up times on workload controlled job shops
AU - Thurer, Matthias
AU - Silva, Cristovao
AU - Stevenson, Mark
AU - Land, Martin
PY - 2012
Y1 - 2012
N2 - Simulation has demonstrated that the workload control (WLC) concept can improve performance in job shops, but positive empirical results are scarce. A key reason for this is that the concept has not been developed to handle a number of practical considerations, including sequence-dependent set-up times. This paper investigates the influence of sequence-dependent set-up times on the performance of a workload-controlled job shop. It introduces new set-up-oriented dispatching rules and assesses the performance impact of controlled order release. Simulation results demonstrate that combining an effective WLC order release rule with an appropriate dispatching rule improves performance over use of a dispatching rule in isolation when set-up times are sequence dependent. The findings improve our understanding of how this key implementation challenge can be overcome. Future research should investigate whether the results hold if set-up time parameters are dynamic and set-up times are not evenly distributed across resources.
AB - Simulation has demonstrated that the workload control (WLC) concept can improve performance in job shops, but positive empirical results are scarce. A key reason for this is that the concept has not been developed to handle a number of practical considerations, including sequence-dependent set-up times. This paper investigates the influence of sequence-dependent set-up times on the performance of a workload-controlled job shop. It introduces new set-up-oriented dispatching rules and assesses the performance impact of controlled order release. Simulation results demonstrate that combining an effective WLC order release rule with an appropriate dispatching rule improves performance over use of a dispatching rule in isolation when set-up times are sequence dependent. The findings improve our understanding of how this key implementation challenge can be overcome. Future research should investigate whether the results hold if set-up time parameters are dynamic and set-up times are not evenly distributed across resources.
KW - workload control
KW - sequence-dependent set-up times
KW - job shop control
KW - order release mechanism
KW - priority dispatching
U2 - 10.1080/00207543.2011.648275
DO - 10.1080/00207543.2011.648275
M3 - Journal article
VL - 50
SP - 6419
EP - 6430
JO - International Journal of Production Research
JF - International Journal of Production Research
SN - 0020-7543
IS - 22
ER -