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Sequence Planning for Integrated Product, Process and Automation Design

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7 Author(s)
Bengt Lennartson ; Automation Research Group Department of Signals and Systems, Chalmers University of Technology, Göteborg, Sweden ; Kristofer Bengtsson ; Chengyin Yuan ; Kristin Andersson
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In order to obtain a unified information flow from early product design to final production, an integrated framework for product, process and automation design is presented. The framework is based on sequences of operations and includes a formal relation between product properties and process operations. This relation includes liaisons (interfaces) and precedence relations, where the precedence relations generate preconditions for the related process operations. From this information a set of sequences of operations (SOPs) is generated. A formal graphical language for hierarchical operations and SOPs is then introduced and defined based on automata extended with variables. Since the operations are self-contained they can be grouped and viewed from different angles, e.g., from a product or a resource perspective. These multiple views increase the interoperability between different engineering disciplines. A case study is performed on a car manufacturing cell, where the suggested modeling framework is shown to give comprehensible SOPs.

Published in:

IEEE Transactions on Automation Science and Engineering  (Volume:7 ,  Issue: 4 )