On-Line Simulation and Control in Manufacturing Systems

Abstract In this paper a novel on-line simulation framework for multi-resource (i.e., machines-workers-auxiliary resources) constrained Flexible Manufacturing Systems (FMSs) is presented. This framework is based on combined optimization and simulation techniques. Optimization procedures are used for initial off-line scheduling and on-line rescheduling (in case of disturbance), using Petri nets, genetic algorithms and dispatching rules. Various performance measures such as minimizing the makespan and the mean flow time were considered. This framework is Implemented using Arena, Microsoft Access, and Microsoft Visual C/C++. Random events are introduced on-line using a user interface provided by Arena Real-time template. The proposed framework will be implemented for the control of an industrial flexible printed circuit board assembly system.

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