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Étude des systèmes de productions automatisée soumis à des aléas

Abstract : This work addresses both discrete-flow and continuous-flow manufacturing systems. Moreover, Petri nets model is used for the simulation of the various manufacturing systems. The performance evaluation and especially the throughput rate of a production system is studied and an analytical comparative study of the two existing failure models, namely operation-dependant failures and time-dependant failures is carried out. An analytical study of the inventory cost function and optimal control policy are presented. The majority of the continuous-flow models do not take into account delays (production lead-times and transportation) which have a great impact on performance measures and optimization. Hence, the modeling and the impact of these delays on the throughput rate in continuous-flow models are studied. The control of the production systems with delays is addressed and the IPA (Infinitesimal Perturbation Analysis) technique is used to optimize our production system. Various control policies are considered, namely, Kanban policy, Echelon Bases Stock policy, and CONWIP policy. A simulation-based optimization is used to determine the optimal buffer level according to the given control policy.
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Iyad Mourani. Étude des systèmes de productions automatisée soumis à des aléas. Autre. Université Paul Verlaine - Metz, 2006. Français. ⟨NNT : 2006METZ027S⟩. ⟨tel-01752453⟩



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