Journal
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
Volume 56, Issue 11, Pages 3880-3900Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207543.2017.1406674
Keywords
reconfigurable machine tool (RMT); machine configurations; reconfiguration processes; AND-OR tree; AND-OR graph; optimisation
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Funding
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Egyptian Armament Authority (EAA)
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A reconfigurable machine tool (RMT) is a special machine that can deliver different machining functions through reconfiguration processes among its configurations during the machine utilisation stage. In this research, a new approach is developed to identify the optimal configurations and the reconfiguration processes for design of the RMTs. In this work, a generic design AND-OR tree is used to model different design solution candidates, their machine configurations and parameters of these configurations. A specific design solution is created from the generic design AND-OR tree through tree-based search and modelled by different machine configurations. For a reconfiguration process between two machine configurations, a generic process AND-OR graph is used to model reconfiguration operation candidates, sequential constraints among operations and operation parameters. A graph-based search is used to generate all feasible reconfiguration process candidates from the generic process AND-OR graph. The optimal design is identified by multi-level and multi-objective hybrid optimisation. A case study is developed to show how this new approach is used for the optimal design of a RMT.
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