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Contribution au rééquilibrage dynamique des lignes d'assemblage : modélisation, résolutions et applications

Abstract : Assembly lines are flow-oriented production systems. They are still typical in industrial production systems despite the evolution from mass-production to more personalized and fluctuating production. In order to meet customer demand (quantity, time, etc.) and to reduce manufacturing costs, the lines must be well balanced. In other words, the products need to move from one workstation to another with the same pace, usually called takt time. This assembly line design problem is widely studied in the literature under the name of ALBP (Assembly Line Balancing Problems). Nonetheless, few studies concern the on-line reconfiguration and in particular, the dynamic rebalancing. The work presented in this thesis focuses on the dynamic rebalancing of assembly lines in response to short-term events disturbing production. Two approaches have been studied for their simplicity, speed of implementation and innovation in the field of ALBP: the ILS approach (Iterated Local Search) and the reachability analysis approach based on a network of communicating automata. This study showed that both approaches can address the need for a quick resolution required by dynamic rebalancing problem but lacked for adaptation when model constraints or objectives are changed. A methodological approach for assembly line balancing problems modeling and resolution is proposed to bridge the gap of adaptability. To ensure the genericity of obtained models., the methodology is composed of two levels of abstraction: a study of the class of the considered problem and a focus on the specific problem to solve. Studies have been validated on industrial examples from Trane factories.
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Antoine Manceaux. Contribution au rééquilibrage dynamique des lignes d'assemblage : modélisation, résolutions et applications. Autre. Université de Lorraine, 2015. Français. ⟨NNT : 2015LORR0279⟩. ⟨tel-01754572⟩



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