Optimisation du ConWip dans un environnement multiproduit

Abstract : In the past decade, a growing body of literature has investigated the CONstant Work InProgress (ConWip) production control system (PCS). In view of the current industrial challengesentailing adaptability, product customisation, decreas- ing leadtimes and customer satisfaction, ConWipseems to be an effective and adaptive PCS for manufacturers. A ConWip systematic review datingback to 2003 and provides a guide for understanding through an original classification method. Thismethod enables the differentiation of papers that concentrate on Con- Wip sizing, performance andcontext as well as a comparison with other PCSs. In addition to providing a key to interpreting theresearch approaches, the criteria considered answers questions on how to implement, how to optimiseand why and when to use ConWip. The survey of research avenues proposed or applicable to CONWIPclassify them, highlight the most promising and extract the main trends. The final aim is to provide somegaps. One of the them deals with key questions related to the implementation of ConWip in a highproduct mix and/or high routing mix environment. Four algorithms that generate different genericroutings are presented. These routings are implemented into Wipsim, an engineering tool used inprojects to design and improve ConWip assembly lines, which allows the optimized ConWip parametersfor each routing to be calculated. A sample of data, derived from an industrial case, is used to test thefour models. We compare them via their sensitivity to the mix product and through the impact of theintroduction of different, atypical products. Our experiments show that our algorithms generatedworthwhile generic routings and help practitioners choose among them, depending on a specificcontext.
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Yann Jaegler. Optimisation du ConWip dans un environnement multiproduit. Génie des procédés. Ecole nationale supérieure d'arts et métiers - ENSAM, 2018. Français. ⟨NNT : 2018ENAM0038⟩. ⟨tel-02064830⟩

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