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Sökning: L773:1424405637 OR L773:9781424405633

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1.
  • Frei, R., et al. (författare)
  • Evolvable assembly systems : Towards user friendly manufacturing
  • 2007
  • Ingår i: ISAM 2007 - IEEE International Symposium on Assembly and Manufacturing. - : IEEE. - 1424405637 - 9781424405633 ; , s. 288-293
  • Konferensbidrag (refereegranskat)abstract
    • Besides coping with the highly dynamic product and production system life cycles with ever-changing requirements, modern assembly systems also need to be user-friendly. Their modularity at fine granularity-level combined with local intelligence and a distributed control approach allows the systems to evolve together with the requirements - but their complexity would soon not be manageable from outside any more if user-friendliness was not considered a major criterion. Systems must be made to serve their users. Thanks to Self-* capabilities, systems can gain an increasingly high degree of autonomy. Diagnosis plays a particularly important role in this process.
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2.
  • Svensson, Bo, 1959-, et al. (författare)
  • Off-Line Optimisation of Complex Automated Production Lines : Applied on a Sheet-Metal Press Line
  • 2007
  • Ingår i: Proceedings of the 2007 IEEE International Symposium on Assembly and Manufacturing. - : IEEE. - 1424405637 ; , s. 82-87
  • Konferensbidrag (refereegranskat)abstract
    • This paper presents a successful off-lineoptimisation case study of a sheet-metal press line for theautomotive industry. The proposed off-line optimisationmethod results not only in increased production rate but also inobtaining smoother material handling motions. The off-lineoptimisation method contains two parts. The first part is aparameter study, combining factorial design with productionline simulation including emulated control systems andresulting in a simplified performance model based on multiplelinear regression. The second part is an optimisation on thesimplified performance model using the Nelder Mead simplexmethod aiming at production optimisation. Due to thecomplexity in a modern production line, it is not possible tocreate a useful model representation of the entire controlsystem code/function. Therefore, the proposed optimisationmethod is based on using production line simulation includingemulated control systems with the real IEC 61131-3 controlcode. Our approach in this work is a parameter variationstrategy for optimisation, i.e. adjusting the control systemparameters in the same way as the line operators do, and notchanging any control strategy.
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  • Resultat 1-2 av 2
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refereegranskat (2)
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Frei, R. (1)
Lennartson, Bengt, 1 ... (1)
Ribeiro, Luis (1)
Semere, Daniel (1)
Barata, J. (1)
Danielsson, Fredrik, ... (1)
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Svensson, Bo, 1959- (1)
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2007 (2)

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