Mathematical optimization of a flexible job shop problem including preventive maintenance and availability of fixtures
Paper in proceedings, 2012

The multitask cell at Volvo Aero Corporation is a flexible job shop containing ten resources aimed at being flexible with regard to product mix and processing types. Computing schedules for this type of job shop is an NP-hard problem. The computation times will therefore always be an issue, especially as the scheduling problem includes limited availability of fixtures and preventive maintenance planning. Computational results show that with the method developed we are able to produce optimal, or near-optimal, schedules for real data instances within an acceptable time frame. The scheduling principle proposed shortens lead times and minimizes tardiness.

Mathematical optimization

Flexible job shop scheduling problem

Production planning

Author

Karin Thörnblad

University of Gothenburg

Chalmers, Mathematical Sciences

Torgny Almgren

University of Gothenburg

Chalmers, Mathematical Sciences, Mathematics

Michael Patriksson

Chalmers, Mathematical Sciences, Mathematics

University of Gothenburg

Ann-Brith Strömberg

Chalmers, Mathematical Sciences, Mathematics

University of Gothenburg

Proceedings of the 4th World P&OM Conference / 19th International Annual EurOMA Conference, Amsterdam, Netherlands, July 2012

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Computational Mathematics

Areas of Advance

Production

Roots

Basic sciences

More information

Created

10/8/2017