Routing-based reactive scheduling policies for machine failures in job shops
Author
Sabuncuoğlu, İ.
Kutanoğlu, E.
Date
2001Source Title
International Journal of Production Research
Print ISSN
0020-7543
Electronic ISSN
1366-588X
Publisher
Taylor & Francis
Volume
39
Issue
14
Pages
3141 - 3158
Language
English
Type
ArticleItem Usage Stats
123
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94
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Abstract
A scheduling and control system can be viewed as a vital component of modern
manufacturing systems that determines companies’ overall performance in their
respective supply chains. This paper studies reactive scheduling policies developed
against unexpected machine failures. These reactive policies are based on rerouting
the jobs to their alternative machines when their primary machine fails.
Depending on the subset of the jobs considered for rerouting, the long-term
performance of four policies are tested under various conditions. Expecting
that these rerouting policies would bring an extra load for a material-handling
system (MHS), a dynamic job shop environment was studied with and without a
MHS. It is shown that the proper selection of a good reactive policy is based not
only on the system characteristics such as utilization, machine down times and
frequency of machine failures, but also on the MHS capacity (in terms of speed
and number of MH devices). The extensive experiments show that when the MHS
is not a bottleneck and/or the down times are long enough to compensate the cost
of extra rerouting, rerouting all aOEected jobs to their alternative machines proves
to be the best policy. However, when the MHS cannot handle the extra load due
to rerouting or the down times are relatively short, then rerouting only the jobs
that will arrive to the failed machine during repair performs the best.
Keywords
Production schedulingJob shops
Job orders
Manufacturing cells
Manufacturing processes
Industrial process furnace and oven manufacturing
Instruments and related products manufacturing for measuring
Displaying
Machine part failures
System failures