Letteratura scientifica selezionata sul tema "Optimisation déterministe (génétique algorithme)"
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Articoli di riviste sul tema "Optimisation déterministe (génétique algorithme)":
Messager, Tanguy, Mariusz Pyrz e Jérôme Coloos. "Optimisation topologique de plaques par algorithme génétique". Revue Européenne des Éléments Finis 7, n. 7 (gennaio 1998): 793–810. http://dx.doi.org/10.1080/12506559.1998.10511341.
Duclos-Prévet, Claire, François Guéna e Mariano Efron. "Algorithme génétique ou automate cellulaire : le cas d’une optimisation multicritère sous contraintes pour la conception d’une enveloppe". SHS Web of Conferences 147 (2022): 09001. http://dx.doi.org/10.1051/shsconf/202214709001.
Tesi sul tema "Optimisation déterministe (génétique algorithme)":
Ghribi, Dhafer. "Optimisation des corrections de forme dans les engrenages droits et hélicoïdaux : Approches déterministes et probabilistes". Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00873973.
Ghilardi, Jean-Pierre. "Optimisation de la représentation de graphes par approche hybride déterministe et stochastique". Aix-Marseille 3, 2002. http://www.theses.fr/2002AIX30032.
In bibliometrie scope, we frequently have to compute database which constitute a quantitive information corpus, difficult to interpret by direct reading. That's the reason why some tools with complex mathematic treatments have been created, this is how structured data bank can be processing to obtain relevant information available for decision makers. The Centre de Recherche Rétrospective de Marseille is specialized in information processing for a long time. Automatic tools based on geometrical representation of relationship between entities have been developed. During this research, an innovant data processing implemented to automatically produce an organized representation of graph easily understandable have been defined. The treatment chain is based on two different approach, a determinist approach issuing from graph theory and a stochastic approach composed of simulated annealing algorithm and genetic algorithm, which allow to make easier graph reading
Girard, Frédéric. "Optimisation de stratifiés en utilisant un algorithme génétique". Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23613/23613.pdf.
Mtibaa, Mohamed. "Οptimisatiοn de cοuplage Ρrοcédé/Ρrοpriétés/Fiabilité des Structures en Μatériaux Cοmpοsites Fοnctiοnnels". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH03.
This research focuses on the challenges and interactions between the manufacturing processes (Resin Transfer Molding ‘RTM’ and Compression Resin Transfer Molding ‘CRTM’), the mechanical properties, and the reliability of composite material structures; more specifically the functional composites. A number of numerical models have been developed for simulating the suspension (resin + particles) impregnation through the fibrous medium (fibers) in the RTM and CRTM processes. These models are validated by comparing their results with experimental, semi-analytical, and analytical ones from the literature. A parametric study is carried out to demonstrate the impact of various process parameters on particles’ distribution in the final composite. Moreover, a comparison between the injection and compression modes is done. The results of this part show that the distribution of particles in the final part depends on the initial concentration, the distance travelled, and the initial fibers’ volume fraction. However, it is independent of the parameters values of injection and compression. It is also observed that the CRTM process with imposed pressure injection and imposed force compression represents the most favorable scenario for producing composite parts.For the purpose of controlling the final particles’ distribution in the composite material, manufactured by the RTM process, two key steps have been identified. The first step consists in a sensitivity analysis that examines three parameters: the temporal evolution of the initial injected particles’ concentration, the injection pressure field and the initial fibers’ porosity. The conclusions indicate a minimal impact of the initial porosity and the injection pressure field; while the evolution of the initial concentration of the injected particles has a dominant effect. In a second step, an optimization algorithm is implemented in the numerical model of the RTM process. It is used to determine the optimal configuration of the initial injected particles’ concentration’s evolution; in order to approximate the particles’ distribution in the final composite to the desired profiles. The obtained results from the genetic algorithm provide a very satisfactory control of this distribution. To complete this section, a model, estimating the mechanical properties of the manufactured part, is developed. It is found that there is a positive correlation between the particles’ fraction and certain mechanical properties, namely the elastic modulus E11 and E22, and the shear modulus G12 and G23. Nevertheless, the Poisson’s ratio (Nu12) is inversely proportional to the particles’ fraction. Also, the shear module G12 is the most significantly influenced by this fraction.Following this, the control of the mechanical properties of the composite parts, manufactured by the CRTM process, is targeted, and compared to the results of the RTM process. The conclusions reveal that the RTM process offers a better control of these properties. Whereas, the CRTM process improves considerably the mechanical properties of the parts due to its compression phase, which increases the fibers’ volume fraction and consequently enhances these properties.Finally, a static analysis is conducted based on the developed numerical model that uses the finite element method (Ansys APDL). This model is combined with those of the CRTM process and the mechanical properties calculation. An optimization algorithm is integrated in our global model to adapt the mechanical properties of the composite part according to the configuration (cantilever or simply supported) and the load distribution. Moreover, it minimizes the composite part’s weight and ensures the respect of the predetermined mechanical constraints such as the maximum deformation limit. The obtained results correspond perfectly to these objectives
Giraud, Moreau Laurence. "Optimisation des systèmes mécaniques : couplage de méthodes déterministes et évolutionnaires par les problèmes en variables mixtes". Troyes, 1999. http://www.theses.fr/1999TROY0006.
Schmitt, Wolfgang. "Optimisation technico-économique du dimensionnement d'un système photovoltaïque hybride". Paris 11, 2005. http://www.theses.fr/2005PA112009.
This thesis deals with the optimal sizing of photovoltaic/diesel hybrid systems. An optimisation tool taking into account technical and economical considerations is developed. First, the principal characteristics of a hybrid system and its components, the interaction between the components as well as different system configurations and several control strategies are presented and analysed. Then, the detailed technical modelling of the system components and of the overall system operation is discussed and analysed. Actually, the modelling of the system is the basis of the optimisation tool and permits to do time-series simulations of the hybrid system operation under the given environmental conditions and for the chosen period of time. There are principally two goals: firstly to ensure that the given system sizing respects the operational constraints and fulfils user requirements and secondly, to supply detailed information about the system operation, in order to calculate the operating costs. The detailed modelling of all costs associated with the components and the system operation is presented as well as the discounting of future costs, which is imperative for long time analysis. The majority of the underlying models are non-linear; lots of them are discontinuous and non-differentiable. The search space is discretised and large. An appropriate method to solve this kind of optimisation problem, which is based on genetic algorithms, is used. Finally, optimisation results are presented on the basis of a well-defined case study
Dedieu, Samuel. "Algorithme génétique multicritère : conception et remodelage d'ateliers de chimie fine". Toulouse, INPT, 2001. http://www.theses.fr/2001INPT016G.
Vincenti, Angela. "Conception et optimisation des composites stratifiés par méthode polaire et algorithme génétique". Dijon, 2002. http://www.theses.fr/2002DIJOS040.
Sergeeva, Marina. "Sectorisation automatisée de l'espace aérien par algorithme génétique". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30121.
With the continuous air traffic growth and limits of resources, there is a need for reducing the congestion of the airspace systems. Nowadays, several projects are launched, aimed at modernizing the global air transportation system and air traffic management. In recent years, special interest has been paid to the solution of the airspace sectorization problem. This thesis is devoted to studying the airspace sectorization in Europe and the possibilities to improve it.The airspace sectorization needs to be optimized with the support of automation in order to increase an adaptability of airspace sector configurations to the new traffic demands. The aim of the first part of this thesis is to propose a global method for the sector design of the European airspace based on a mathematical modeling and heuristic optimization methods. The proposed resolution method to solve the sector design problem is based on the initial division of the airspace into Voronoi cells using k-means clustering algorithm. Then, due to the induced combinatorial complexity, a stochastic optimization method is applied to solve the sector design problem. Resolution method based on metaheuristic algorithm called Genetic Algorithm (GA) has been developed to build airspace sectors in several control areas of Europe, involving traffic data for several days. Furthermore, airspace sector configurations need to be dynamically adjusted to provide maximum efficiency and flexibility in response to changing weather/traffic conditions. The objective of the second part of this thesis is to automatically adapt the airspace configurations according to the evolution of traffic. In order to reach this objective, the airspace is considered to be divided into predefined 3D airspace blocks which have to be grouped or ungrouped depending on the traffic situation. The resolution method based on the graph partitioning technique and on the metaheuristic algorithm (GA) has been developed to generate a sequence of sector configurations, composed of the predefined airspace blocks. The overall methodology, is implemented and tested with air traffic data taken for one day of operation and for several different airspace control areas of Europe
Faye, Papa Aldemba. "Couplage algorithme génétique-code éléments finis pour le dimensionnement de structures en matériaux composites". Clermont-Ferrand 2, 2004. http://www.theses.fr/2004CLF22497.
Libri sul tema "Optimisation déterministe (génétique algorithme)":
Michalewicz, Zbigniew. Genetic algorithms + data structures = evolution programs. 2a ed. Berlin: Springer-Verlag, 1994.
Michalewicz, Zbigniew. Genetic Algorithms + Data Structures =: Evolution Programs. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994.
Michalewicz, Zbigniew. Algorytmy genetyczne + struktury danych = programy ewolucyjne. 3a ed. Warszawa: Wydawnictwa Naukowo-Techniczne, 2003.
Michalewicz, Zbigniew. Genetic algorithms + data structures = evolution programs. Berlin: Springer-Verlag, 1992.
Michalewicz, Zbigniew. Genetic algorithms + data structures = evolution programs. 3a ed. Berlin: Springer-Verlag, 1996.
Michalewicz, Zbigniew. Genetic Algorithms + Data Structures = Evolution Programs. Springer, 2014.
Michalewicz, Zbigniew. Genetic Algorithms + Data Structures = Evolution Programs. Springer London, Limited, 2013.
Michalewicz, Zbigniew. Genetic Algorithms + Data Structures = Evolution Programs. Springer London, Limited, 2013.
Michalewicz, Zbigniew. Genetic Algorithms + Data Structures = Evolution Programs. Springer, 2011.