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Scheduling optimization of a real flexible job shop including fixture availability and preventive maintenance

Författare och institution:
Karin Thörnblad (Institutionen för matematiska vetenskaper, Chalmers/GU); Ann-Brith Strömberg (Institutionen för matematiska vetenskaper, matematik, Chalmers/GU); Michael Patriksson (Institutionen för matematiska vetenskaper, matematik, Chalmers/GU); Torgny Almgren (Institutionen för matematiska vetenskaper, matematik, Chalmers/GU)
Publicerad i:
European Journal of Industrial Engineering, 9 ( 1 ) s. 126-145
ISSN:
1751-5254
Antal sidor:
19
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2015
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
The multitask cell at GKN Aerospace Sweden is a flexible job shop containing ten resources aimed at being flexible with regard to product mix and processing types. We present a time-indexed formulation of the problem of optimally scheduling the planned jobs on the resources, also considering a limited availability of fixtures as well as required preventive maintenance activities. The objective is to minimize a weighted sum of the completion times and tardiness for the jobs, where the tardiness weight for a given job is a non-increasing function of its due date. We propose a fast iterative approach to finding a suitable value of the length of the time horizon that needs to be set for the time-indexed formulation and which considerably influences the computation time. Computational results show that the method developed is able to produce optimal, or near-optimal, schedules for real data instances within an acceptable practical time frame.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Matematik
NATURVETENSKAP ->
Matematik ->
Diskret matematik
NATURVETENSKAP ->
Matematik ->
Beräkningsmatematik ->
Tillämpad matematik ->
Optimeringslära, systemteori
TEKNIK OCH TEKNOLOGIER ->
Maskinteknik ->
Produktionsteknik, arbetsvetenskap och ergonomi ->
Industriell teknik och ekonomi
Nyckelord:
production planning, flexible job shop scheduling problem (FJSP), mathematical optimization, dynamic scheduling, preventive maintenance, fixture availability, time-indexed formulation, objective weights, time horizon
Chalmers styrkeområden:
Produktion
Transport
Chalmers fundament:
Grundläggande vetenskaper
Chalmers drivkrafter:
Hållbar utveckling
Postens nummer:
167036
Ingår i post nr:
Posten skapad:
2012-12-04 10:41
Posten ändrad:
2016-07-19 14:24

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