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Développement de nouvelles politiques de maintenance intégrée à la qualité en tenant compte de diverses contraintes opérationnelles

Abstract : The last few decades have been marked by a remarkable change in the economic environment of companies. It is due certainly to the increasing competition that they face. This strong competition has led companies to investigate new ways to improve their economic performance while meeting their customers' requirements. The key to the success of the majority of companies lies in the implementation of an economic management method of various functions. Industry and researchers have demonstrated a strong interaction between the three fundamental functions of the company; maintenance, production and quality. They have demonstrated that an independent management of these three functions is no more efficient. Following this observation, we were interested in this research project in the development of new maintenance strategies integrated production and quality. Taking into account sales prices, reworking costs, maintenance costs and production costs, an analysis of the interdependence of the three functions enabled us to achieve our goal of maximizing the profits of companies. The purpose of this thesis is to propose new approaches integrated quality and maintenance taking into account the progressive degradation of the production system, its impact on the quality of output products and the economic impact of reworking actions. Analytical models have been developed to illustrate the proposed strategies. The effect of the degradation of the production system on the degradation of quality of output products and its economic impact has been modeled using mathematical models. In this context, various maintenance policies (perfect, imperfect, semi-perfect) have been studied. The existence of optimal solutions related to the decision variables has been analytically demonstrated. Finally, numerical resolutions, based on industrial cases, have been presented in order to illustrate the theoretical results obtained. The robustness of the analytical models developed has been proved by sensitivity studies
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Amal Gouiaa-Mtibaa. Développement de nouvelles politiques de maintenance intégrée à la qualité en tenant compte de diverses contraintes opérationnelles. Autre. Université de Lorraine, 2017. Français. ⟨NNT : 2017LORR0287⟩. ⟨tel-01810188⟩

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