Download or read book Contribution a la construction d un systeme d aide a la planification et a l ordonnancement de lignes paralleles multiproduits written by Abdelhakim Artiba and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution la construction d un syst me d aide la planification et l ordonnancement de lignes parall les multiproduits written by Abdelhakim Artiba and published by . This book was released on 1990 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail porte sur la planification-ordonnancement de lignes parallèles multiproduits. Ce type de système de production, organisé en lignes parallèles multiproduits, est fréquent en industrie, notamment dans le domaine de l'industrie parapharmaceutique, chimique ou de la brasserie. Il peut être étendu aux chaines de fabrication automobile et à l'industrie aéronautique. Le nombre élevé de contraintes, la diversité des produits et leurs interdépendances, l'aspect dynamique et perturbé de la production et la contradiction de certains des objectifs à atteindre rendent le problème très complexe. Ce type de système de production n'a pas été étudié dans la littérature, et une solution optimale n'est pas envisageable. Pour cette raison, l'expertise humaine reste la clé de résolution de ce problème et elle est basée sur l'expérience, la politique de décision et les objectifs globaux de l'entreprise, des heuristiques. Un outil d'aide à la décision est donc nécessaire pour faciliter la tâche de l'homme dans ses fonctions de planification et d'ordonnancement en intégrant ces trois points. Nous décrivons et classifions les données et les contraintes essentielles communes aux différents systèmes de production organisés en lignes parallèles multiproduits. Nous répertorions ensuite les connaissances et les modules fonctionnels. Nous proposons ensuite les modèles des données, connaissances et traitements, ainsi que les spécifications et l'architecture fonctionnelle du système générique pour la gestion de règles de planification et d'ordonnancement. L'implémentation et l'évaluation du prototype sur un cas industriel réel, utilisant l'outil Nexpert/Object et le langage C sous l'environnement Windows sont présentées.

Download or read book The Planning and Scheduling of Production Systems written by Abdelhakim Artiba and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: If one accepts the premise that there is no wealth without production, whether at the individual or national level, one is immediately led to the conclusion that the study of productive systems lies at the forefront of subjects that should be intensively, as well as rationally and extensively, studied to achieve the desired 'sustainable growth' of society, where the latter is defined as growth in the quality of life that does not waste the available resources in the long run. Since the end of World War II there has been a remarkable evolution in thinking about production, abetted to a large measure by the nascent field of informatics: the computer technology and the edifices that have been built around it, such as information gathering and dissemination worldwide through communication networks, software products, peripheral interfaces, etc. Additionally, the very thought processes that guide and motivate studies in production have undergone fundamental changes which verge on being revolutionary, thanks to developments in operations research and cybernetics.

Download or read book Proceedings written by and published by . This book was released on 1995 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings IECON written by and published by . This book was released on 1992 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution la planification et l ordonnancement de syst mes flexibles de production sujets pannes written by Olivier De Smet and published by . This book was released on 1995 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans ce mémoire, on étudie le problème de la gestion de systèmes de production sujets à pannes. Les approches utilisant une structure de commande hiérarchisée font apparaitre les niveaux planification et ordonnancement, mais elles prennent rarement en compte les pannes des le niveau de la planification. Nous proposons une nouvelle approche basée sur une structure de commande hiérarchisée utilisant un modèle à flux pour la partie planification et une méthode de recherche par faisceaux pour la partie ordonnancement. Le modèle a flux propose permet d'intégrer les pannes des l'équation d'évolution par l'utilisation de sauts markoviens décrivant l'évolution du système entre ses différents états possibles. On associe alors une fonction cout quadratique exprimant différents couts (de stockage, de production) et en partie les contraintes de capacités du système. La résolution du problème de commande optimale ainsi obtenu conduit a un ensemble d'équations matricielles couplées de type Riccati. Nous donnons alors une condition nécessaire et suffisante pour l'existence d'une solution. Nous proposons aussi un algorithme de résolution permettant d'obtenir les taux de production optimaux pour chaque type de produits dans tous les modes du systeme. Le combinatoire pour la production de pièces sur un systeme flexible pouvant devenir exagéré, nous introduisons un concept de filières permettant de réduire la taille du problème tout en conservant une relative flexibilité pour son fonctionnement. L'ordonnancement de la production sur des systemes de ce type nécessite une réaction rapide, c'est pourquoi nous proposons un ordonnancement temps réel base sur une recherche par faisceaux permettant de suivre au mieux les taux calcules par le niveau planification. Pour valider notre approche, une maquette informatique écrite en langage c a été développée et permet de simuler l'évolution d'un système de production. Deux exemples de systèmes sont traités, l'un compose de 9 machines avec 6 produits et l'autre de 6 machines et 3 produits.

Download or read book Balancing and Sequencing of Assembly Lines written by Armin Scholl and published by Physica. This book was released on 1999-02-26 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with two main decision problems which arise when flow-line production systems are installed and operated. The assembly line balancing problem consists of partitioning the work, necessary to assemble the product(s), among different stations of an assembly line. If several models of a product are jointly processed on a line, this medium-term problem is connected with the short-term problem of determining an operating sequence of the models. In Part I balancing and sequencing problems are discussed, classified, and arranged within a hierarchical planning system. In the present second edition special emphasis is given to u-shaped assembly lines which are important components of modern just-in-time production systems. Part II is concerned with exact and heuristic procedures for solving those decision problems. For each problem type considered, a survey of existing procedures is given and new efficient solution methods are developed. Comprehensive numerical investigations showing the effectiveness of the new methods and their superiority over existing approaches are reported.

Download or read book Distributed Decision Making written by Christoph Schneeweiss and published by Springer Science & Business Media. This book was released on 2012-11-07 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed decision making (DDM) has become of increasing importance in quantitative decision analysis. In applications like supply chain management, service operations, or managerial accounting, DDM has led to a paradigm shift. The book provides a unified approach to such seemingly diverse fields as multi-level stochastic programming, hierarchical production planning, principal agent theory, negotiations or contract theory. Different settings like multi-level one-person decision problems, multi-person antagonistic planning, and leadership situations are covered. Numerous examples and real-life planning cases illustrate the concepts. The new edition has been considerably expanded by additional chapters on supply chain management, service operations and multi-agent systems.

Download or read book Assembly Line Design written by Brahim Rekiek and published by Springer Science & Business Media. This book was released on 2006-04-21 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficient assembly line design is a problem of considerable industrial importance. Assembly Line Design will be bought by technical personnel working in design, planning and production departments in industry as well as managers in industry who want to learn more about concurrent engineering. This book will also be purchased by researchers and postgraduate students in mechanical, manufacturing or micro-engineering.

Download or read book Metaheuristics for Production Systems written by El-Ghazali Talbi and published by Springer. This book was released on 2015-11-26 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the main techniques and newest trends to manage and optimize the production and service systems. The book begins by examining the three main levels of decision systems in production: the long term (strategic), the middle term (tactical) and short term (operational). It also considers online management as a new level (a sub level of the short term). As each level encounters specific problems, appropriate approaches to deal with these are introduced and explained. These problems include the line design, the line balancing optimization, the physical layout of the production or service system, the forecasting optimization, the inventory management, the scheduling etc. Metaheuristics for Production Systems then explores logistic optimization from two different perspectives: internal (production management), addressing issues of scheduling, layout and line designs, and external (supply chain management) focusing on transportation optimization, supply chain evaluation, and location of production. The book also looks at NP-hard problems that are common in production management. These complex configurations may mean that optimal solutions may not be reached due to variables, but the authors help provide a good solution for such problems. The effective new results and solutions offered in this book should appeal to researchers, managers, and engineers in the production and service industries.

Download or read book Advances in Production Management Systems written by Jan Olhager and published by Springer. This book was released on 2007-12-24 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together some of the latest thinking by leading experts from around the world on integrating systems and strategies in production management and related issues that are relevant for making production into a competitive resource for the firm. This book is composed of five parts, each focused on a specific theme: Linking systems and strategies; Strategic operations management; IS/IT applications in the value chain; Modelling and simulation; Improving operations.