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

Thörnblad, Karin, 1971 (author): Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology

Strömberg, Ann-Brith, 1961 (author): Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper, matematik,Department of Mathematical Sciences, Mathematics,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology

Patriksson, Michael, 1964 (author): Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper, matematik,Department of Mathematical Sciences, Mathematics,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology

Almgren, Torgny, 1962 (author): Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper, matematik,Department of Mathematical Sciences, Mathematics,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

2015
2015
English.
In: European Journal of Industrial Engineering. - 1751-5254. ; 9:1, s. 126-145

Related links:: http://dx.doi.org/10...; show more...; https://gup.ub.gu.se...; https://doi.org/10.1...; https://research.cha...; show less...

Abstract Subject headings

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.

TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)
NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
NATURVETENSKAP -- Matematik -- Diskret matematik (hsv//swe)
NATURAL SCIENCES -- Mathematics -- Discrete Mathematics (hsv//eng)
NATURVETENSKAP -- Matematik (hsv//swe)
NATURAL SCIENCES -- Mathematics (hsv//eng)

By the author/editor: Thörnblad, Karin ...; Strömberg, Ann-B ...; Patriksson, Mich ...; Almgren, Torgny, ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Production Engin ...

NATURAL SCIENCES: NATURAL SCIENCES; and Mathematics; and Computational Ma ...

NATURAL SCIENCES: NATURAL SCIENCES; and Mathematics; and Discrete Mathema ...

By the university: University of Gothenburg; Chalmers University of Technology

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