Dissertations / Theses on the topic 'Production – Planification – Modèles mathématiques'
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Régnier, Pierre. "Recherche et exploitation du parallélisme en planification." Toulouse 3, 1992. http://www.theses.fr/1992TOU30268.
Full textOrtiz, Araya Virna Angélica. "Proposition d'un modèle de désagrégation pour un plan tactique stable dans le contexte des chaînes logistiques et de l'usage d'un APS." Nancy 1, 2005. http://www.theses.fr/2005NAN10194.
Full textCurrently, enterprises are looking for a method to know how much to produce and when. Furthermore, they want to have a global vision of their production system and logistics. Thus, the supply chain management is responsible for insuring and optimizing the level of service to the customers, while assuring the best profitability for the company. To answer these objectives, we show in this thesis the interest of tactical plan and the way to determine detailed plans (MPS), by using a hierarchical structure (HPP). In this context, we propose a disaggregation methodology at two-levels that allows identification of “stable” MPS, by taking into account “robust and stable” forecasted plans (SOP). Optimization models are proposed as well as constraints which take into account decisions relative to each level, in order to insure consistency between them. Finally, we apply a treatment model for the real demand by using the AR (p) process, in order to render more stable the different MPS determined
Messaoudene, Zahir. "Formalisation des contradictions pour la conception des systèmes physiques de production : Application au lean manufacturing." Strasbourg 1, 2003. http://www.theses.fr/2003STR13152.
Full textIn a difficult industrial context, the manufacturing system must evolve. The manufacturing system is a complex system which is composed by a unit of interdependent resources to transform, to move, to store the products. The finality of any manufacturing system is to get better in order to survive. One of the responses to satisfy this finality is the implementation of Lean Manufacturing. In order to implement the Lean Manufacturing, a detailed manufacturing system modelling is necessary. This modelling generates a complex network of relations between the resources and activities whose it is difficult to obtain an immediate understanding. This interlacing of relations contains a whole of contradictions which it is difficult to extract. A contradiction is expressed by the opposition which the value of system parameter can take to satisfy needs for implement the Lean Manufacturing. A contradiction is expressed by this way: the transfer lot size must be raised to reduce displacement costs of products, but the transfer lot size must be weak to reduce post-operative storing costs. The difficulty to formalize these contradictions lies in the lack of information's structuring to implement Lean Manufacturing and the judicious choice of model. This model must be in coherence with Lean Manufacturing. In order to provide an explanation for better comprehension of Lean Manufacturing implementation, we propose a method for formalize the contradictions. In order to construct this method, we use certain concepts descended from Theory of General System, Axiomatic Design and OTSM-TRIZ. For greater clarity, we implement this method within the framework of description of specific contradictions network to the lead manufacturing time reduction. Finally, we propose a manner to explore this contradictions network within a workshop study
Fitouhi, Mohamed Chahir. "Optimisation de la planification intégrée de la maintenance préventive et de la production des systèmes multi-états." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28234/28234.pdf.
Full textLenoir, Arnaud. "Modèles et algorithmes pour la planification de production à moyen terme en environnement incertain." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2008. http://tel.archives-ouvertes.fr/tel-00731056.
Full textLivet, Alexandre. "Modélisation des systèmes physiques de production pour l'évaluation des coûts des activités." Université Louis Pasteur (Strasbourg) (1971-2008), 2002. http://www.theses.fr/2002STR13129.
Full textOur study concerns the use and exploitation of the resource and activity concepts used in design of a production system. These two concepts are used by engineers and managers in order to improve efficiency of production systems or to measure its financial performance. Unfortunately, the convenient exploitation of these two concepts is confronted to a common difficulty of the both fields : quantify activities. Moreover, because of the absence of common language between engineers and managers, it isn't possible to link the engineer's activity view (micro view) and the manager's cost view (macro view). These both views are however essential to quantify activities. Our work proposes a reference model based on the rules of enterprise modeling. This one constitutes the missing link for a common language and the bridge between a generic model and a particular model. Then we propose an instantiation approach to transform the reference model in a particular model. Finally, in order to quantify the activities, we propose a measure approach of the particular model, which can for example be integrated to activities based costing methods. We illustrate our approach with an industrial example
Cossard, Nicolas. "Un environnement logiciel de modélisation et d'optimisation pour la planification de la production dans la chaîne logistique." Clermont-Ferrand 2, 2004. http://www.theses.fr/2004CLF21548.
Full textHerrera, Carlos. "Cadre générique de planification logistique dans un contexte de décisions centralisées et distribuées." Phd thesis, Université Henri Poincaré - Nancy I, 2011. http://tel.archives-ouvertes.fr/tel-00639761.
Full textLemoine, David. "Modèles génériques et méthodes de résolution pour la planification tactique mono-site et multi-site." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2008. http://tel.archives-ouvertes.fr/tel-00731297.
Full textSabar, Mohamed. "Une approche à base d'agents pour la planification et l'ordonnancement en temps réel de personnel dans un contexte de chaîne d'assemblage flexible." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25762/25762.pdf.
Full textClaisse, Maxime. "Méthodes de pilotage des flux avec prise : en compte des incertitudes prévisionnelles." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC022/document.
Full textProduction Planning, as part of tactical operations integrated into the Supply Chain process, is a key procedure allowing decisioners to balance demand and production resources. One of its most challenging issues is to handle uncertainties, especially the ones coming from the Forecasted Demand. In order to manage indicators at stake, such as service level and costs, best practices increasing flexibility in the process are implemented, as Rolling-Plan Framework. However, it creates instability since the updates procedures make the data set on change constantly. Consequently, although the gain in terms of flexibility is non-negligible for the uncertainties management, it generates on the other hand dynamics complexity. We study in this work how to deal this dynamics complexity generated by updates of the Forecasted Demand made in a Rolling-Plan Framework of a Production Planning Process. In particular, the question to which it answers is how to optimize the Production Plan in such a context. This issue is tackled considering a single item single level production system. A general mathematical model in the context of our study is built to be exploitable for analytical optimization. A theoretical optimization framework is designed, and a specific solutions computation framework using stochastic dynamic programming is developed. We apply it in some precise study cases in order to compute optimal solutions and get some valuable analytical results thanks to a dynamic computation process. The optimality of the solutions is proven through an inductive reasoning based on expectations computation. Solutions are finally implemented and calculated numerically with simulations in some particular numerical examples. Analyses and sensitivity studies are performed, highlighting the performances of our optimization method
Mohammadi, Mehrdad. "A multi-objective optimization framework for an inspection planning problem under uncertainty and breakdown." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0055/document.
Full textQuality inspection in multistage production systems (MPSs) has become an issue and this is because the MPS presents various possibilities for inspection. The problem of finding the best inspection plan is an “inspection planning problem”. The main simultaneous decisions in an inspection planning problem in a MPS are: 1) which quality characteristics need to be inspected, 2) what type of inspection should be performed for the selected quality characteristics, 3) where these inspections should be performed, and 4) how the inspections should be performed. In addition, lack of information about production processes and several environmental factors has become an important issue that imposes a degree of uncertainty to the inspection planning problem. This research provides an optimization framework to plan an inspection process in a MPS, wherein, input parameters are uncertain and inspection tools and production machines are subject to breakdown. This problem is formulated through several mixed-integer mathematical programming models with the objectives of minimizing total manufacturing cost, maximizing customer satisfaction, and minimizing total production time. Furthermore, Taguchi and Monte Carlo methods are applied to cope with the uncertainties. Due to the complexity of the proposed models, meta-heuristic algorithms are employed to find optimal or near-optimal solutions. Finally, this research implements the findings and methods of the inspection planning problem in another application as hub location problem. General and detail concluding remarks are provided for both inspection and hub location problems
Poulin, Marc. "Personalizing Business Networks." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26643/26643.pdf.
Full textMirakyan, Atom. "Methodological frameworks for uncertainty analysis in long range integrated energy planning for cities and territories." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAD027.
Full textThe Phd first proposes a methodological framework for addressing different types of uncertainty within long range ntegrated energy planning for cities and territories (IEPCT) processes which includes requirements and quality factors. Second, two methods for uncertainty analysis of modelling tasks are proposed. One approach is probabilistic random sampling approach (PRSUA) another one is fuzzy scenario approach (FSUA). Compared to FSUA, the PRSUA framework is more data intensive. PRSUA is more suitable for short or midterm sector specific domain analysis, FSUA is more appropriate for long range cross sectoral integrated planning.Third it is proposed an innovative approach (IMMA) for supporting not only uncertainties in IEPCT first phase but also all other tasks relevant to this planning phase. Implementation of IMMA in Singapore shows that it can address all identified tasks and help developing requirements for innovative solutions
Elbedoui-Maktouf, Khaoula. "Vers un modèle global de planification intégrant différents leviers de flexibilité." Lyon, INSA, 2009. http://theses.insa-lyon.fr/publication/2009ISAL0010/these.pdf.
Full textLinear elastic fracture mechanics is not able to model one of the physical phenomenon of fatigue crack growth: the plasticity induced crack closure effect first observed by Elber. Crack propagation simulation is a difficult numerical issue in which remeshing and field projection is almost unavoidable. New numerical methods, that model implicitely discontinuities, such as the extended finite element method appeared recently. One proposes to use it to model crack closure. It is therefore necessary to take into account plasticity around the tip and contact on the crack lips. A new plastic enrichment basis is coupled with an augmented Lagrangian formulation in the framework of the XFEM. Comparisons between numerical results and results from experimental tests obtained with digital image correlation show the ability of the method
Vu, Thanh Tung. "Modèles spatiaux pour la planification cellulaire." Thesis, Paris, ENST, 2012. http://www.theses.fr/2012ENST0043/document.
Full textNowadays, cellular technology is almost everywhere. It has had an explosive success over the last two decades and the volume of traffic will still increase in the near future. For this reason, it is also regarded as one cause of worldwide energy consumption, with high impact on carbon dioxide emission. On the other hand, new mathematical tools have enabled theconception of new models for cellular networks: one of these tools is stochastic geometry, or more particularly spatial Poisson point process. In the last decade, researchers have successfully used stochastic geometry to quantify outage probability, throughput or coverage of cellular networks by treating deployment of mobile stations or (and) base stations as Poisson point processes on a plane. These results also take into account to impact of mobility on the performance of such networks. In this thesis, we apply the theory of Poisson point process to solve some problems of cellular networks, in particular we analyze the energy consumption of cellular networks. This thesis has two main parts. The first part deals with some dimensioning and coverage problems in cellular network. We uses stochastic analysis to provide bounds for theoverload probability of OFDMA systems thanks to concentration inequalities and we apply it to solve a dimensioning problem. We also compute the outage probability and handover probability of a typical user. The second part is dedicated to introduce different models for energy consumption of cellular networks. In the first model, the initial location of users form a \PPP\ and each user is associated with an ON-OFF process of activity. In the second model, arrival of users forms a time-space \PPP. We also study the impact of mobility of users by assuming that users randomly move during its sojourn. We focus on the distribution of consumed energy by a base station. This consumed energy is divided into the additive part and the broadcast part. We obtain analytical expressions for the moments of the additive part as well as the mean and variance of the consumed energy. We are able to find an error bound for Gaussian approximation of the additive part. We prove that the mobility of users has a positive impact on the energy consumption. It does not increase or decrease the consumed energy in average but reduces its variance to zero in high mobility regime. We also characterize the convergent rate in function of user's speed
Laruelle, Hervé. "Planification temporelle et exécution de tâches en robotique." Toulouse 3, 1994. http://www.theses.fr/1994TOU30048.
Full textMourou, Pascal. "Planification et contrôle d'exécution dans un monde multi-agent : copilote pour véhicule en circulation autoroutière." Toulouse 3, 1994. http://www.theses.fr/1994TOU30135.
Full textThiel, Daniel. "Vers une meilleure connaissance du comportement dynamique des systèmes de production : conception de modèles génériques et simulation continue." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30098.
Full textMaggion, Sylvie. "Etude de l'estimation des paramètres d'un modèle de réflectance bidirectionnelle et planification optimale des observations depuis l'espace." Toulouse 3, 1995. http://www.theses.fr/1995TOU30265.
Full textGrunder, Olivier. "Apport de la modélisation cognitive à la planification de projets." Besançon, 1998. http://www.theses.fr/1998BESA2004.
Full textCelikoglu, Hakan. "La planification stratégique des activités en transport aérien : modèles intégrant la gestion des routes, des avions et des sièges." Châtenay-Malabry, Ecole centrale de Paris, 1994. http://www.theses.fr/1994ECAP0401.
Full textBrahimi, Nadjib. "Planification de la production : modèles et algorithmes pour les problèmes de dimensionnement de lots." Nantes, 2004. http://www.theses.fr/2004NANT2047.
Full textLot sizing in a production system is a complex and very important problem. To solve it, several mathematical models and solution procedures are proposed in the literature. After giving a review of lot sizing problems, we propose a new model for single level problems by introducing a new set of constraints: Time window constraints. The new model, which represents in a better way the availability of raw materials, enables us to consider other situations such as perishable inventory and when demand is an input to the system instead of being an output. Based on the new model, we study the following cases: single item problems without and with capacity constraints, and multi item problems without and with setup times. The uncapacitated single item problem is essentially solved using dynamic programming. For the other problems, we propose Lagrangian heuristics. For each class of these problems, different Lagrangian relaxations are tested and compared. We recommend the best methods to use for each type of problems
Li, Yantong. "Modèles et algorithmes pour une classe de problèmes combinés de production et de tournées de véhicules." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLE036/document.
Full textThe production routing problem (PRP) consists of determining an integrated production and distribution planning that aims to optimize overall cost and improve service level. Although the PRP has been attracting academic and practical interests, it has not been well studied in the literature. Food production routing problem (FPRP) that is more complex than the classic PRP due to food perishability, has rarely been studied. This thesis focuses on developing new models and algorithms for the PRP and FPRP.Firstly, a multi-product PRP with outsourcing (MPRPOS) that is a generalization of the classic PRP is addressed. For the problem, a mixed integer linear programming (MILP) model is proposed and a three-level heuristic is designed. Computational experiments on 225 newly generated MPRPOS instances and 1530 PRP benchmark instances demonstrate the effectiveness and efficiency of the proposed heuristic. Especially, 283 new best solutions for PRP benchmark instances are found by the heuristic.Considering food quality and perishability, and based on the study for the PRP, three new FPRPs are then investigated, i.e., 1) a multi-plant FPRP with packaging consideration (MFPRP); 2) a bi-objective FPRP (BFPRP) that minimizes the total supply chain cost and maximizes food quality simultaneously; and 3) a FPRP with delivery time window constraints (FPRPTW). For each of the studied problems, a MILP model is proposed. Moreover, a hybrid matheuristic that combines a two-phase iterative method, a fix-and-optimize procedure, and a route-based optimization is developed for the MFPRP. For the BFPRP, an epsilon-constraint-based heuristic and a fuzzy logic decision method are proposed to generate near-optimal Pareto solutions and to help decision makers select a preferred solution. And the FPRPTW is directly solved by the state-of-the-art solver CPLEX. A case study shows the proposed model and algorithm for BFPRP can improve food supply chain performance. Computational results on randomly generated instances demonstrate the proposed hybrid matheuristic and epsilon-constraint-based heuristic outperform CPLEX
De, Paula Reis Alline. "Conception biologique complexe : Planification et modèles d'affaires. Le cas du clonage équin." Phd thesis, AgroParisTech, 2013. http://pastel.archives-ouvertes.fr/pastel-01017382.
Full textBlanc, Hervé-Valéry. "Détection des collisions dans le cadre de la planification 3D du remplacement d'un générateur de vapeur." Aix-Marseille 3, 1998. http://www.theses.fr/1998AIX30086.
Full textKhalfaoui, Souhaiel. "Production automatique de modèles tridimensionnels par numérisation 3D." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00841916.
Full textJacques, Jovani. "Modélisation des capacités de transformation et des marchés : support à la planification stratégique dans l'industrie forestière." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27161/27161.pdf.
Full textLiu, Xiao. "Modèles et algorithmes pour des problèmes d'approvisionnement dans l'industrie pétro-chimique." Troyes, 2004. http://www.theses.fr/2004TROY0018.
Full textThis thesis develops and investigates approaches to solve classical and practical single item capacitated lot sizing problems in petrochemical industries. We first define and extend single item capacitated lot sizing models to the most general cases, where both backlogging and lost sales are permitted. The model with the most general cost functions is formulated. We prove a necessary and sufficient condition for there to be a feasible solution and how that this condition can be checked in polynomial time to compute actual bounds on inventory and backlogging levels. If feasible solutions exist, we develop pseudo-polynomial dynamic programming methods. Theoretical analyses in computational complexity and memory complexity are given. Then, a single item dynamic lot sizing model with bounded inventory and lost sales is examined. Polynomial time approaches are proposed both for stockout model and conservation model with computational results. Subsequently, we extend a concave cost single item economic lot sizing model with bounded inventory and lot sales. A strongly polynomial algorithm is developed based on new properties for the stockout model. Finally, by analysing the crude oil procurement planning for distributed supply chain with multi-suppliers and multi-refineries, a multi-objective procurement planning model is established. Numerical experiments demonstrate that the approach proposed is efficient and applicable, which can not only make effective procurement planning, minimize the cycle time of the supply chain, but also choose the suppliers and optimize the configuration of resources
Kolelas, Brice Parfait. "La firme et les alternatives stratégiques : intégration verticale - contrat de long terme, intégration verticale - marché." Dijon, 1993. http://www.theses.fr/1993DIJOE016.
Full textWhen a firm is in an unstable environment, some strategies are requiered for its survival. There are several possible type of strategies; among these we can quote: vertical integration-long term contract, vertical integration-market the goal of this dissertation is to point out the theoritical foundation of these strategies and try to initiate theoritical analysis which may unify them in the optic of a dynamic strategy
Masson, Sophie. "Les interactions entre système de transport et système de localisation en milieu urbain et leur modélisation." Lyon 2, 2000. http://theses.univ-lyon2.fr/documents/lyon2/2000/smasson.
Full textThis research proposes an interactive operational transport and land use model like a tool of transport planning aid. The construction of this model falls under a will to exceed the traditional methodology of the strongly criticized models of transport owing to the fact that they badly take into account the character derived of the travel demand, in particular, the locations of the residents and of the activities, generators of travel, are regarded as fixed. In the long run, the interactions between transport and land use must be explicitly integrated. The modification of the conditions of travel has impacts on the urban forms and the effect of these forms on the travel demand is not a doubt. The implementation of such a model requires an analysis of the travel demand, initially, and a conceptual and theoretical analysis of the mechanisms of interaction between transport and land use in the second time. That is the subject of the first part of this work. The second part of the thesis is devoted to the development of an interactive model of transport and urbanisation. This one articulates three submodels: a model of urban development which takes as a starting point the theory of the urban economic base, a model of urban structure which estimates the distribution of the locations of the residents and the induced activities. Lastly, a model of travel which expresses the market equilibrium of the urban transport obtained through the stages of generation, spatial distribution, modal split and assignment. The dynamics of long term of the model is obtained by the introduction of retroactive loops. The model brings certain lesson for the transport planning. The latter must fall under a total step and of long term, and must be considered in coherence with the urban planning
Lair, Pierre-Olivier. "Contribution à la modélisation, à l'analyse et à la commande des systèmes de production par une approche bond graphs." Besançon, 2000. http://www.theses.fr/2000BESA2058.
Full textDegraeve, Patrick. "Étude d'un système de conduite d'un atelier industriel à flot unique." Lille 1, 1985. http://www.theses.fr/1985LIL10141.
Full textCollin, Ivan. "Planification de tâches-robots pour robots mobiles en environnement structuré." Compiègne, 1995. http://www.theses.fr/1995COMPD778.
Full textde, Paula Reis Alline. "Conception biologique complexe : Planification et modèles d'affaires. Le cas du clonage équin. Conception et planification dans les biotechnologies innovantes : le clonage équin." Thesis, Paris, AgroParisTech, 2013. http://www.theses.fr/2013AGPT0076.
Full textLife sciences noticed important technological developments during the last decades. Some promising examples, developed in the 90's and 2000's, were mammals cloning, animal and vegetal transgenesis and the therapeutic stem cells. The specialized literature of the life science domain is rich on technical-experimental publications and despite the technical difficulty still present, the authors are optimistic about their commercial issue. These technological advances induced the emergence of a new life science industry where the companies are knowledge intensive and highly specialised. Despite the innovative character and the development of a new market of high added value, the companies of this sector often face economic difficulties. We analysed this recent industry under the managerial point of view aiming to understand the difficulties presented to the managers. Little concern about these problems is available in the specialised literature. In general the technologies are treated individually as an almost unique entity. Under this context it is currently impossible to develop a general overview enabling to study general aspects of this industry. In this aim we proceeded to design a generical model that could allow discussing the managerial characteristics of the industry. This designing effort was necessary to understand the general difficulties met by the companies specialised in these recent technologies. Thereafter the concept can be used to propose managerial improvements. The C-K Theory was employed to structure and translate available information in order to make them available for the design of the model. The data was collected under a case study methodology, as described by Eisenhardt (1989). The existence of a rich panel of recent technologies in this domain justifies the need to develop the concept from a unique extreme case, especially affected by managerial difficulties: the case of the equine cloning. Last and final summary in the thesis
Lancella, Pierre. "Méthodologie de conception des systèmes physiques de production : analyse, évaluation et spécifications." Bordeaux 1, 1995. http://www.theses.fr/1995BOR10673.
Full textKaminski-Cachopo, Anne. "Etude des étapes technologiques critiques dans la production des cellules solaires en silicium multicristallin." Lyon, INSA, 1997. http://www.theses.fr/1997ISAL0003.
Full textThe till factor of solar cells depends on series resistance, shunt resistance, diode current and open circuit voltage. The aim of this work was to analyse each of these parameters for large area multicrystalline silicon solar cells and to determine new ways of investigation for the improvement of the fill factor. We have developed two characterization techniques: dark current - voltage setup for large area junctions and infrared thermography adapted to the study of solar cells. Soda and acid texturised solar cells were studied. The limiting parameters for the first ones were series resistance, material quality and front surface recombinations. Series resistance was modelled and a new grid geometry for the front surface was proposed. The contribution to series resistance of each part of the cell was also analysed. Experiments were carried out to verify back contact ohmicity and to improve the number of soldering points. With regard to acid texturised solar cells, a compromise must be found between shunt resistance and successful chemical attack in order to conserve good values of fill factor. It was shown that series resistance depends on surface state : acid texturised solar cells present the lower ones
Belmansour, Ahmed-Tidjani. "Évaluation de l'efficacité de lignes de production avec machines multi-états et stocks intermédiaires." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28247/28247.pdf.
Full textBelmahdi, Noureddine. "Contribution à l'organisation du système de production pour la modélisation et son évaluation par la simulation." Metz, 1995. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1995/Belmahdi.Nour_Eddine.SMZ9531.pdf.
Full textRoboam, Michel. "Modèles de références et intégration des méthodes d'analyse pour la conception des systémes de production." Bordeaux 1, 1988. http://www.theses.fr/1988BOR10551.
Full textVacher, Blandine. "Techniques d'optimisation appliquées au pilotage de la solution GTP X-PTS pour la préparation de commandes intégrant un ASRS." Thesis, Compiègne, 2020. http://www.theses.fr/2020COMP2566.
Full textThe work presented in this PhD thesis deals with optimization problems in the context of internal warehouse logistics. The field is subject to strong competition and extensive growth, driven by the growing needs of the market and favored by automation. SAVOYE builds warehouse storage handling equipment and offers its own GTP (Goods-To-Person) solution for order picking. The solution uses an Automated Storage and Retrieval System (ASRS) called X-Picking Tray System (X-PTS) and automatically routes loads to workstations via carousels to perform sequenced operations. It is a highly complex system of systems with many applications for operational research techniques. All this defines the applicative and theoretical scope of the work carried out in this thesis. In this thesis, we have first dealt with a specific scheduling Job Shop problem with precedence constraints. The particular context of this problem allowed us to solve it in polynomial time with exact algorithms. These algorithms made it possible to calculate the injection schedule of the loads coming from the different storage output streams to aggregate on a carousel in a given order. Thus, the inter-aisle management of the X-PTS storage was improved and the throughput of the load flow was maximized, from the storage to a station. In the sequel of this work, the radix sort LSD (Least Significant Digit) algorithm was studied and a dedicated online sorting algorithm was developed. The second one is used to drive autonomous sorting systems called Buffers Sequencers (BS), which are placed upstream of each workstation in the GTP solution. Finally, a sequencing problem was considered, consisting of finding a linear extension of a partial order minimizing a distance with a given order. An integer linear programming approach, different variants of dynamic programming and greedy algorithms were proposed to solve it. An efficient heuristic was developed based on iterative calls of dynamic programming routines, allowing to reach a solution close or equal to the optimum in a very short time. The application of this problem to the unordered output streams of X-PTS storage allows pre-sorting at the carousel level. The various solutions developed have been validated by simulation and some have been patented and/or already implemented in warehouses
Fagegaltier, Laurent. "Planification multichemin pour les déplacements d'un véhicule tout-terrain." Montpellier 2, 1994. http://www.theses.fr/1994MON20027.
Full textBASTIE, CHRISTINE. "Integration de la planification et du suivi d'execution d'actions paralleles : le systeme speedy." Toulouse 3, 1997. http://www.theses.fr/1997TOU30200.
Full textGetan, Cabre Enrique. "Une contribution à la productique : modélisation de données pour la maintenance intégrée des systèmes automatisés de production." Châtenay-Malabry, Ecole centrale de Paris, 1994. http://www.theses.fr/1994ECAP0374.
Full textBarkaoui, Mohamed. "Approche évolutionnaire pour la planification d'itinéraires dans un environnement dynamique." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27074/27074.pdf.
Full textAcosta-Tamayo, Oscar Dario. "De la navigation exploratoire virtuelle à la planification d'interventions endovasculaires." Rennes 1, 2004. https://tel.archives-ouvertes.fr/tel-00007555v2.
Full textEl, Ouazzani Redouan Chahdi. "Modélisation et analyse des performances des systèmes de production utilisant des stocks tampons à capacités finies." Doctoral thesis, Université Laval, 2007. http://hdl.handle.net/20.500.11794/19025.
Full textMazigh, Belhassen. "Modélisation et évaluation des systèmes de production par les réseaux de Pétri stochastiques généralisés." Mulhouse, 1994. http://www.theses.fr/1994MULH0310.
Full textGuillard, Stephane. "Modélisation et stratégies auto-organisatrices pour les ateliers de production modernes." Lyon, INSA, 1992. http://www.theses.fr/1992ISAL0012.
Full textThe market constraints which are put on manufacturing enterprises make those enterprises seek new organizations, for production systems as well as for their command and control methods. We propose a model in which we can accurately represent the physical and the command parts of such new organizations, aimed at dynamical command and control. We propose, at various levels in this model, the introduction of a distributed decision policy, based on computer sciences techniques, such as connectionism. This policy is aimed at smoothing the parts flow through : - a dynamic priority management system - cooperation for the shop-level decision system - auto-adaptation for certain heuristics in the workshop control system. The goals are mainly the increase of the production system reactivity towards unplanned events and production management system constraints
Bettinger, Régis. "Inversion d'un système par krigeage : application à la synthèse de catalyseurs à haut débit." Nice, 2009. https://tel.archives-ouvertes.fr/tel-00460162.
Full textThis work deals with the modeling of the synthesis process for catalyst supports obtained by a chemical reaction involving silica and alumina. The process is characterized by 5 inputs and 2 outputs (specific surface and mesoporous volume of the support). Each pair of output values has a potential application and the ultimate objective is to be able to find input values associated with the synthesis of a catalyst with any given output characteristics (surface, volume). The ranges of the two outputs are unknown. The number of runs available is too small to build a satisfactory model over the whole input domain. We thus combine design of experiments and kriging modeling in a way that ensures both a limited dispersion of the input factors and a good exploration of the reachable output domain. The runs are designed sequentially, using the information provided by former runs through their associated kriging model. This sequential construction seems more efficient than the design of a non-sequential experiment containing the total amount of available runs. Several criteria are proposed for sequential design which favor a high dispersion of the corresponding outputs and take the uncertainties associated with the kriging model into account. The two most appealing are tested on simulated data in order to check the dispersion of outputs; one is based on minimax distance and the other on entropy. Basic properties of Gaussian processes, regression/interpolation by kriging and links with other methods such as splines and SVMs are reminded, together with standard methods for designing experiments, with the objective of combining rigor and clarity