Improving the applicability of workload control (WLC): the influence of sequence-dependent set-up times on workload controlled job shops

M. Thurer, C. Silva, M. Stevenson*, M. J. Land

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6419-6430
Number of pages12
JournalInternational Journal of Production Research
Volume50
Issue number22
DOIs
Publication statusPublished - 2012

Keywords

  • workload control
  • sequence-dependent set-up times
  • job shop control
  • order release mechanism
  • priority dispatching
  • ORIENTED MANUFACTURING CONTROL
  • ORDER RELEASE
  • SCHEDULING PROBLEMS
  • SYSTEMS
  • PERFORMANCE
  • ENVIRONMENT
  • INDUSTRY
  • ISSUES

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