Дисертації з теми "Simulation de mouvement"
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Faure, Olivier. "Simulation du mouvement brownien et des diffusions." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1992. http://tel.archives-ouvertes.fr/tel-00523258.
Повний текст джерелаMulton, Franck. "Analyse, Modélisation et Simulation du Mouvement Humain." Habilitation à diriger des recherches, Université Rennes 1, 2006. http://tel.archives-ouvertes.fr/tel-00441143.
Повний текст джерелаCausse, Mathieu. "Simulation aveugle large bande du mouvement sismique." Phd thesis, Université Joseph Fourier (Grenoble), 2009. http://tel.archives-ouvertes.fr/tel-00392066.
Повний текст джерелаLa difficulté principale pour simuler "en aveugle" est le choix des paramètres de la source (chute de contrainte, point de nucléation,...), mal contraints, et qu'il faudra pourtant estimer a priori. Ce choix contrôle le niveau médian et la variabilité du mouvement sismique. La première solution testée consiste à déterminer directement les lois de distribution de ces paramètres à partir des résultats issus de l'inversion cinématique. Afin de garantir que les niveaux simulés sont réalistes, nous proposons dans un second temps de calibrer les simulations par FGE en un site de référence au rocher en utilisant un modèle de prédiction empirique.
Les différentes méthodes sont appliquées pour simuler dans le bassin grenoblois un séisme de magnitude 5.5 à 15 km. La comparaison aux normes EC8 montre que les spectres réglementaires sont dépassés en certains points du bassin sédimentaire, à 0.3 Hz et autour de 0.2 Hz.
Multon, Franck. "Analyse, modélisation et simulation du mouvement humain." [S.l.] : [s.n.], 2006. http://www.irisa.fr/centredoc/publisHDRirisafolder.2006-06-01.0400865959/irisapublication.2007-02-09.5137418245.
Повний текст джерелаLempereur, Mathieu. "SIMULATION DU MOUVEMENT D'ENTRÉE DANS UN VÉHICULE AUTOMOBILE." Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2006. http://tel.archives-ouvertes.fr/tel-00338087.
Повний текст джерелаDes mouvements d'entrée dans un véhicule automobile ont été simulés pour les sujets caractéristiques et d'autres sujets de la base de mouvements. La comparaison avec les mouvements mesurés montre une bonne similarité, qui néanmoins se dégrade avec l'éloignement du sujet par rapport au sujet caractéristique. Des simulations de sujets fictifs montrent enfin les limites de l'outil développé.
Ce travail ouvre de nombreuses perspectives de recherche allant de l'amélioration du modèle squelettique de l'homme à la prise en compte de la dynamique pour estimer l'inconfort d'un mouvement généré par la simulation.
Villard, Pierre-Frédéric. "Simulation du Mouvement Pulmonaire pour un Traitement Oncologique." Phd thesis, Université Claude Bernard - Lyon I, 2006. http://tel.archives-ouvertes.fr/tel-00858260.
Повний текст джерелаSkoura, Xanthi. "Simulation mentale du mouvement : une approche life-span." Dijon, 2007. http://www.theses.fr/2007DIJOL033.
Повний текст джерелаThe aim of this thesis is to examine the motor prediction process from a life-span perspective. We carried out 3 experiments, in which we compared the temporal parameters of executed (EM) and imagined movements (IM) of young and elderly adults. Our results showed an isochrony between IM and EM for all adults when the motor task did not imply high spatiotemporal constraints. However, when the spatiotemporal difficulty of the task increased, a significant temporal difference occurred between IM and EM in elderly adults only. This difference was greater for the non-dominant arm (MND, left) than the dominant arm (MD, right). These results suggest a progressive decline of motor prediction with advance in age. We also examined the capacity of children, age 6, 8, 10 years, to imagine their own movements (tracing between mazes with different widths). In the 1st study, we found that children did modulate the duration of IM according to the maze widths, as they did for the EM, and that duration of IM was inferior to that of EM for all maze widths and for all children. However, we found that the correlation between the duration of EM and IM significantly increased with age. In the 2nd study, we examined if manual preference is integrated into the action representation. Our findings revealed that EM and IM were faster for the MD compared to MND. These results suggest a progressive improvement of motor prediction with age and also put forward the idea that manual preference is early integrated into action representation
Diener, Julien. "Acquisition et génération du mouvement de plantes." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0080.
Повний текст джерелаThe primary goal of my Ph. D. Has been to develop innovative animation techniques for virtual plants. Two main approaches have been explored: the reproduction real motion and real-time simulation. First, I have mixed vision algorithms and user interface in order to extract reliable motion data from videos. An innovative method has then been designed to estimate a valid hierarchical structure of branches using statistical study which is used to retarget the video movement on a wide range of virtual plants. Second, I have developed new animation method that computes the response of plants to interactively controllable wind. The main contribution has been to show that simple approximations of the wind load model leads to a drastic reduction of the run-time computations. The simulation algorithm takes full advantage of the parallel processing capabilities of computer graphics cards allowing the animation of thousand trees in real-time
Asselin, Bruno. "Analyse sportive par superposition d'un mouvement avec sa simulation théorique." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0003/MQ31672.pdf.
Повний текст джерелаBendahan, Patrice. "Analyse biomécanique et simulation du mouvement de préhension en milieu encombré." Paris 11, 2006. http://www.theses.fr/2006PA112246.
Повний текст джерелаThe studies undertaken in this report focused on the analysis and modeling of the prehension movement in unstructured environment. From experimental data, the first aim is to use biomechanics to provide a better understanding of the processes and strategies involved by the central nervous system during prehension tasks with obstacle avoidance. The second is to propose an original architecture in order to model and predict the movement applied to a 3d anthropomorphic poly-articulated structure representing the trunk and upper limb. We studied the influence of an obstacle on movement organization. The reach and grasp components were especially investigated. We suggested that the planning of the transport phase is made through “sensory via points” corresponding to biomechanical parameters which reflected the sensorial state of the system. More over, we demonstrated that the trunk, arm and wrist motor units were independent. The grasp component analysis showed that its planning was strongly linked with the environment and the reach component. These results proved the existence of a state – space control between these two components. The tridimensional model was associated to a multi-network architecture, in order to reproduce and predict the motor program of the prehension task with obstacle avoidance. More precisely, we focused our attention on two distinct steps: the planning of all the postural parameters relative to the movement trough the reach and grasp components on the one hand, and the coordination of these two phases on the other hand. Many modeling results are available for each component of the model, and during the realization of a complex movement
Courtemanche, Simon. "Analyse et simulation des mouvements optimaux en escalade." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM082/document.
Повний текст джерелаHow optimal are human movements ? This thesis tackles this issue by focusing especially on climbing movements, studied here under three complementary aspects which are the experimental gathering of climbing sequences, the biomechanical analysis of these data, and the synthesis of gestures by timing optimization. Walking has been largely studied, with good results in animation [Mordatch 2013]. We are interested here especially in the original question of climbing motions, whose diversity and multicontact aspect present an interesting complexity for the evaluation of the human motion characteristics. The heterogeneity of climbing gestures can be linked to several factors which are the variety of wall shapes, the multiplicity of climber skill levels, and different climbing categories, namely bouldering, route climbing or speed climbing. Our exploratory approach of this sport consists in three steps: the data collection by multicamera marker-based motion capture, combined with a set of force sensors mounted on an in-laboratory bouldering wall; a gesture analysis by inverse dynamics, taking only kinematic data as inputs, based on the minimization of internal torques to resolve the multicontact ambiguity, intrinsic to the climbing activity, validated by comparison with sensor measurements; and finally, the use of the energy efficiency criterion for synthesizing the best timing associated with a given sequence of movements. Experimental recordings were made at McGill University which has a climbing wall instrumented of 6 force sensors, and a motion capture device of 24 cameras, which allowed us to collect data on a population of nine subjects. The analysis of these data is the second part of this thesis. The addressed challenge is to find the external forces and internal torques from the climber's movements only. To this end we assume an optimal distribution of internal torques. After analysis, the distribution turns out to be rather uniform than proportional to the muscle capacity associated to each body joint. Finally, in a third and last part, we focus on the timing of climbing gestures, taking as input the path of the climber, possibly after inverse kinematics in order to overcome the need for a capture with markers and infrared cameras. As output, an optimal timing for this path is found. This timing is realistic, but lacks of a modelization for hesitation and decision making instants, as well as a model for the contact establishment, with the associated temporal delay currently not taken into account
Pain, Sonia. "Simulation numérique du mouvement des fluides dans une cellule de Hall-Héroult /." [S.l.] : [s.n.], 2006. http://library.epfl.ch/theses/?nr=3497.
Повний текст джерелаCordier, Virginie. "Influence de la simulation mentale guidée sur l'apprentissage du mouvement en danse." Thesis, La Réunion, 2010. http://www.theses.fr/2010LARE0003/document.
Повний текст джерелаThis study aims to highlight the effects of mental simulation of guided learning, performance and image of the movement in dance. In the literature review, we present the main theories of cognitive and socio-cognitive, and implementations of learning methods from these two theoretical fields. Then, from the specifics of the dance "didactical" transformations referred by schools and universities, and the place of mental images in dance, we consider the mental simulation guided by rhythmic and metaphorical instructions. Afterwards, we present a preliminary study for the tool construction for assessing performance in dance, and two experimental studies conducted with novice adult subjects on learning tasks during reproduction of form and improvisation-composition. The results in their essence show (1) that mental simulation is a more effective method of learning than observation, from the moment it is guided 2) that the rhythmic instructions are fundamental in dance learning because they help to organize and structure the movement, (3) that the metaphorical instructions seem particularly suited to the expressive and artistic dimensions of dancing. Taken together, these findings emphasize the importance of guided mental simulation with instructions to ensure its effectiveness in learning
Lamouret, Alexis. "Animation par modèles générateurs : controle du mouvement." Phd thesis, Grenoble 1, 1995. http://www.theses.fr/1995GRE10095.
Повний текст джерелаCoppin, Olivier. "Modélisation et simulation du mouvement naturel humain : validation expérimentale et application au bras." Châtenay-Malabry, Ecole centrale de Paris, 1992. http://www.theses.fr/1992ECAP0237.
Повний текст джерелаMarzani, Franck. "Contribution à l'analyse et au suivi du mouvement humain sans marqueur." Dijon, 1998. http://www.theses.fr/1998DIJOS008.
Повний текст джерелаHabibi, Arash. "Visualisation d'objets très déformables : relations mouvement-forme-image." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0008.
Повний текст джерелаThis work falls within the field of image synthesis and computer animation by physical modelling. The modelling and visualization of physical objets consists in a work on shape, motion and image. The more a given reference object is deformable and the more the relation between these three phenomena may grow complex. We study this relation and determine in which conditions the behaviour (shape, motion and image) of an object may be represented by several models which are autonomous (multi-scale modelling) and discoupled (clothing « habillage »). In particular, we study highly deformable objects. A shape modeler for this type of object must verify a certain number of properties. We present a shape model verifying these conditions. We study its dynamic behaviour and present the resulting images
Carensac, Samuel. "Contrôle physique de mouvement de personnages virtuels en environnement complexe." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI037.
Повний текст джерелаThis thesis deals with the animation of virtual characters composed of rigid bodies linked by joints and controlled by physic interactions (forces and torques). The controller is the system that dynamically calculates these interactions. Our goal is to study and create a controller that is able to control the character interacting with a fluid. The complexity of the behavior of such environment renders predicting the interactions between the fluid and the character impossible. Therefore, the controller must be able to react to such interactions. We have focused our works on the conception of a SIMBICON typed controller that is able to handle the perturbations caused by the physically simulated fluid. This choice is motivated by our previous controller that was able to handle the interactions with a simplified fluid based on simplified fluid dynamics equations. The use of the complete fluid dynamic equations should allow for a higher realism by taking into account to impact of the character motion on the fluid. Since our objective is to obtain an interactive controller, we focus our works on two main axes. The first one is the conception of a controller able to handle low simulation frequencies while keeping the high computation speed brought by the use of the SIMBICON framework. We propose to use a feedback system using an online optimization to reduce the instabilities caused by the of the low simulation frequencies. On top of this system, we study the evolution of the value of the PD-controllers depending on the simulation frequency to be able to propose a controller able to handle simulation frequencies as low as 225Hz. The second research axis aims to conceive a fully GPU implementation of a Lagrangian fluid simulation. We study the impact of various optimization proposed by previous work on our GPU implementation. We also present a system allowing us to move the simulation area of the fluid to be able to keep the character centered in the fluid simulation. This system allows us to only use a small area for the fluid simulation allowing us to propose a system showing interactive execution times
Khannous, El Housseine. "Simulation du mouvement de parois et de lignes de Bloch dans les matériaux ferromagnétiques." Phd thesis, Université Joseph Fourier (Grenoble), 1996. http://tel.archives-ouvertes.fr/tel-00346104.
Повний текст джерелаLaurent, Rémy. "Simulation du mouvement pulmonaire personnalisé par réseau de neurones artificiels pour la radiothérapie externe." Phd thesis, Université de Franche-Comté, 2011. http://tel.archives-ouvertes.fr/tel-00800360.
Повний текст джерелаKhannous, El Housseine Barras Pierre. "Simulation du mouvement de parois et de lignes de Bloch dans les matériaux ferromagnétiques." S.l. : Université Grenoble 1, 2008. http://tel.archives-ouvertes.fr/tel-00346104.
Повний текст джерелаBottero, Alexis. "Simulation numérique en forme d'onde complète d'ondes T et de sources acoustiques en mouvement." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0325/document.
Повний текст джерелаThis thesis combines observations, simulations and development of high performance numerical tools in the field of underwater acoustics, and in particular for the study of T-waves. After a literature review on T-waves, we analysed real data recorded in Italy. In order to model the phenomenon we have developed an axisymmetric spectral element solver in the time domain, which we present and validate. We also present a parametric study of the influence of seafloor slope in a typical scenario of generation / conversion of a T-wave. The energy and duration of these waves is particularly sensitive to the environment. In particular, we have seen that the slopes and characteristics of the seabed are of crucial importance. Our studies confirm that at regional distances the ocean speed profile is only a second order parameter. To evaluate its impact we have developed a procedure for the calculation of transmission and dispersion loss maps from full waveform numerical simulations in the time domain. In a second step we show that a medium-sized commercial boat can create T-waves of a significant amplitude and of low dispersion by diffraction. This T-wave generation mode, still undocumented, must be particularly frequent in areas where maritime traffic is dense and could explain some abyssal T-waves still misunderstood. Finally, we present numerical tools for calculating the acoustic field created by a moving source
Boubeker, Rabia. "La formation des structures équiaxes : mouvement des grains, croissance-refusion, conséquences sur les macroségrégations." Vandoeuvre-les-Nancy, INPL, 2004. http://docnum.univ-lorraine.fr/public/INPL_T_2004_BOUBEKER_R.pdf.
Повний текст джерелаIn order to improve the predictions ofheterogeneitiesof composition observed on steel ingots at the end of solidification, a numerical study which takes into account the movement and the growth of equiaxed grains has been realized. After a bibliographic part related to the formation of the equiaxed grains, a diphasic approach has been adopted to describe the growth and the remelting of globular grains moving in the liquid bulk. This numerical study was implemented in the computer code SOLill. The movement of the grains has been described in a first part with the assumption that the grains move at the same speed than that of the liquid phase. The results obtained. " showed the influence of the movement and growth-remelting of the grains on solidification, especially in the evolution of the superheated zones. Then, we have taken into account the own movement of the grains which differs from that of the liquid phase. Ln this case, a solid fraction of coherence beyond which grains are imposed to be fixed has been introduced. This study showed that the final macrosegregation is strongly dependent on this fraction of coherency and on the flux density of fragments. Finally, we have demonstrated that it was possible to adjust the input data of the model in order to get a good agreement between the numerical and the experimental results
Campana, Mylène. "Motion planning for digital actors." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30097/document.
Повний текст джерелаProbabilistic algorithms offer powerful possibilities as for solving motion planning problems for complex robots in arbitrary environments. However, the quality of obtained solution paths is questionable. This thesis presents a tool to optimize these paths and improve their quality. The method is based on constrained numerical optimization and on collision checking to reduce the path length while avoiding collisions. The modularity of probabilistic methods also inspired us to design a motion generation algorithm for jumping characters. This algorithm is described by three steps of motion planning, from the trajectory of the character's center to the wholebody motion. Each step benefits from the rigor of motion planning to avoid collisions and to constraint the path. We proposed physics-inspired constraints to increase the plausibility of motions, such as slipping avoidance, velocity limitation and contact maintaining. The thesis works have been implemented in the software `Humanoid Path Planner' and the graphical renderings have been done with Blender
Ait, El Menceur Mohand Ouidir. "Modélisation, analyse et simulation du mouvement d'entrée dans des véhicules automobiles à géométrie variable : application aux mouvements d'entrée des personnes âgées et/ou ayant des déficiences motrices." Valenciennes, 2009. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/9af8c69a-6673-4f19-a631-11a69e374902.
Повний текст джерелаThe difficulty from which suffer elderly and/or disabled people when entering or exiting an automobile vehicle can lead them to never use it again. The car manufacturers are conscious of this fact and they are more and more interested in these growing elderly and/or disabled populations prone to locomotor apparatus disorders and in this complex gesture requiring a precise coordination of the human body articular movements. An alternative to understand and predict this movement is to use the digital simulation. Works completed in this thesis fall under this context and concern the kinematic simulation of the vehicle entering movement of a humanoid (constituted of a head, a trunk, a basin and lower limbs) in variably-dimensioned vehicles by using real data resulting from the experimentation. To solve this "complex" problem, we propose a three stage methodological procedure. A first stage carries on the constitution of a base of movements that we name "exploitable" movements which are issued from the experimentation carried out on two variably-dimensioned vehicles. These "exploitable" movements are the result of digital processing applied to the measured entry movements. These processing allow, among others, to adapt the measured joint articulation angles to the humanoid in order to avoid possible collisions with the cockpit which would not have been noted during the experiments. A second stage relates to the automatically analysis and identification of the vehicle entering movement strategies. This stage proceeds in four phases and it allows the identification of 2 entry movement strategies and 6 sub–strategies. A third stage, made up of 4 phases as well, uses the assets resulting from stages 1 and 2 to simulate an entry movement of a subject of the base adopting a given sub-strategy in another vehicle of different geometry. The simulation of the entry movement of the same subject in another vehicle concerns an inverse kinematics problem solved by constrained nonlinear programming. Simulations, implying elderly and/or having prostheses people, make it possible to validate the suggested procedure for the two entry strategies. In spite of the differences with the measured movements, the simulated movements are in conformity with the sub-strategies adopted by the subjects during the experiments. Furthermore, the realized simulations make it possible to explain partly the changes of strategy operated by some subjects, during the experiments, when shifting from one vehicle to another. Finally, simulations on fictitious vehicles show the limits of the developed simulation tool. This work opens several prospects for research as well concerning the improvement of simulation, by considering for example the intra-individual differences of subjects or the dynamics of the movement, as the development of new ergonomic indices in order to consider discomfort associated with the simulated movements
Gagnon, Louis. "Calcul de la résistance aérodynamique d'un véhicule muni de pièces en mouvement." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27288/27288.pdf.
Повний текст джерелаEvrard, Matthieu. "MIMESIS, un environnement de conception et de simulation de modèles physiques particulaires masses - interactions CORDIS - ANIMA pour l'animation : du mouvement généré à l'image du mouvement." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0073.
Повний текст джерелаThis thesis deals with the design of a computer framework dedicaced to animation by the physical mass-interaction CORDIS-ANIMA networks. Genericity and modularity of CORDIS-ANIMA having been still largely proved, the design and the implementation of such framework have to face with other theorical and practical problems that are discussed here in order to include every function that are required for an interactive creation of models and the communication inside a global chain of production of animated pictures. This thesis ends on the report of various situation of use in pedagogical, research and creation contexts
Discours, Christophe. "Analyse du mouvement par mise en correspondance d'indices visuels." Phd thesis, Grenoble INPG, 1990. http://tel.archives-ouvertes.fr/tel-00338382.
Повний текст джерелаHanotaux, Gabriel. "Techniques de contrôle du mouvement pour l'animation." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 1993. http://tel.archives-ouvertes.fr/tel-00834691.
Повний текст джерелаLestrade, Kévin. "Simulation de trajectoires complexes à l’aide d’un hexapode de mouvement : application aux sports de glisse." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0037/document.
Повний текст джерелаThe project SIMUSURF consists in using an hexapod to analyze the biomechanical response of a human subject positioned on the moving platform of the hexapod and submitted to a translation and/or rotation movement. This robot allows practice of sport activities where balanced specific conditions are required. Riding sports such as surf, ski or snowboard are sports for which special skills to steer the support (surfboard, snowboard or ski for instance) are needed. The development of a surf simulator, using the hexapod equipped with multi-axis force plates, will allow to study the relations between figure and biomechanical response of the surfer, the interindividual variability to execute a given movement and to optimise the actions of the person aiming at better performances.The development of this simulator from the hexapod has been approached from two aspects.- From an instrumentation and acquisition point of view, simulation of the trajectories corresponding to the movements of the set {surfer + board} on the ocean required the constitution of an experimental database to identify such a behavioral dynamic model of the interactions between the surfer, his board and the wave. For these in situ experimentations, instrumentation of a surfboard was required. The design of an instrumented board and the implementation of an acquisition protocol in the extreme conditions due to the marine environment have been one of the technological hurdles associated.- From a mechanical and robotics point of view, it was essential to optimize the control of the hexapode (a total of 6 actuators with the potential speed of 5 m/s) to reach the desired trajectory or multiaxial efforts to impose in the special case of a force complex command.To be realistic, a surfing simulator designed with an hexapod had to be able to reproduce the complex movements and high dynamic of a surfboard on a wave and submitted to the efforts of surfer. These specifications were reached by taking account of existing dynamic coupling phenomena between actuators and implementing effective multivariable control approach: CRONE approach synthesizing control laws both powerful and robust, that is resistant to imperfect knowledge of the controlled system
Pouliot, Nicolas. "Analyse, optimisation et conception de mécanismes de simulation de mouvement à trois degrés de liberté." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq25715.pdf.
Повний текст джерелаDemougeot, Laurent. "Interaction entre processus centraux et périphériques lors de l'exécution, la simulation et l'observation du mouvement." Dijon, 2009. http://www.theses.fr/2009DIJOS071.
Повний текст джерелаImagining a movement or observing someone executing an action requires the participation of mental representations. Although imagining or observing an action doesn’t involve apparent motion, participation of cerebral motor areas is essential in these activities. While at the cortical level, it has been clearly shown that there is a participation of a motor component, we do not know if there is a participation of a sensory component. (1) In the fist study, the presence of kinaesthetic illusions (induced by muscle vibration) significantly influenced the executed, imagined and observed movements (2) Alterations in the mental simulations were also reported after the end of the muscle vibration stimulation (study 2). Induced post-effects were greater and the adaptation was longer during the imagined movement (3) In the third study, a prolonged voluntary contraction also influenced the mental simulation of a movement. An erroneous prediction was shown in the presence of muscular fatigue (4) The fourth study revealed a decrease of mental simulation capacity in patients with vestibular strokes. (5) Finally we showed that in addition to anticipating sensory consequences the brain can also anticipates, non specifically, physiological changes mediated by the autonomous nervous system. In short, our results reveal the contribution of the sensori-motor system during mental simulation and observation of movement. We discuss these results in light of studies that have been conducted in the field of computational neuroscience
Fradet, Laetitia. "Analyse biomécanique, modélisation et simulation du tir au handball." Rennes 2, 2003. http://www.theses.fr/2003REN20044.
Повний текст джерелаA first study gives handball throwing specificities with regards to other overarm throwings. For this, the kinematic and the dynamic analyses of three groups of handball throwers from different level have been driven. During handball throwing, the humeral external rotation is lower, the horizontal adduction of the arm is earlier and its linear velocity are singular. A second study gives the links between the performance parameters and the biomechanical parameters of the movement. Two different kinds of throw appear. The subjects who have the lower ball velocities have a greater humeral rotation but less efficient. This is due to a different mechanism used to induce this rotation. For this subjects, the horizontal adduction is principally used. The kinematic simulation of handball throwing has been made thanks to the modelling obtained by the kinematic analysis of handball throwing. This kinematic simulation has been used for other studies equally relative to handball
Pamela, Stanislas. "Simulation magnéto-hydro-dynamiques des Edge-Localised-Modes [ELM] dans un tokamak." Aix-Marseille 1, 2010. http://theses.univ-amu.fr.lama.univ-amu.fr/2010AIX11039.pdf.
Повний текст джерелаIn order to produce energy from fusion reactions in a tokamak, the plasma must reach temperatures higher than that ofour sun. The operation regime called H-mode enables one to acquire a plasma confinement close to fusion conditions. Due to the formation of a transport barrier at the plasma edge, turbulent transport is reduced, and the total plasma pressure increases, resulting in a strong pressure gradient at the edge. If this pressure gradient, localised at the plasma-vacuum boundary, becomes too teep, a magneto-hydro-dynamic instability is triggered and part of the plasma pressure is lost. This instability, hence called Edge-Localised-Mode, provokes large heat fluxes on some of the plasma-facing components of the machine, which could set operational limits for a tokamak the size of ITER. In order to understand this instability, and to determine the non-linear mechanisms behind the ELMs, the IOREK code is used. The work presented in this thesis is based on MHD simulations of ballooning modes (responsible for ELMs) with the JOREK code. At first, simulations are done for standard plasmas, inspired of experimental machines. In particular, the plasma rotation at equilibrium, in the region of the edge pressure gradient, is studied in order to obtain an analysis of the effects that such a rotation can have on the linear stability of ELMs and on their non-linear evolution. Then, as a second step, simulations are applied to plasmas of the experimental tokamaks JET and MAST (England). This permits the direct comparison of simulation results with experimental observations, with the main goal of improving our global understanding of ELMs. Adding to this physics aspect, the confrontation of the JOREK code with diagnostics of JET and MAST brings to a validation of simulations, which should prove that the simulations which were obtained do correspond to ELM instabilities. This first step towards the validation of the code is crucial concerning the simulation of ELMs in ITER, and the prediction of ELM-related physics in future fusion reactors
Durocher, Carole Delamarche Paul Multon Franck. "Analyse, modélisation et simulation de l'impulsion au sol dans les activités physiques." Rennes : Université Rennes 2, 2007. http://tel.archives-ouvertes.fr/tel-00199311/fr.
Повний текст джерелаMoubogha, moubogha Joseph. "Analyse des écoulements autour de structures en mouvement forcé de tangage : application à la propulsion instationnaire." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0056/document.
Повний текст джерелаThis thesis work is part of the fundamental context of unsteady marine propulsion. The propulsive performances of different aspect ratios (span to corde) profiles, in harmonic pitching motion are analyzed. The main active part of a natural propulsion system, such as a fish caudal fin, is modelled by simple, thin and rigid profiles that are almost identical, with the exception of the very high aspect ratio of the first profile (4.8), called two-dimensional, and very low aspect ratio of the second (1/6), called three-dimensional. The pitching motion is imposed on the third corde, starting from the leading edge of the profiles immersed in a flow. The objective is to vary the Strouhal number, based on the total excursion amplitude of the trailing edge of the profile, over a relatively small and narrow range, where several aquatic species evolve. This range is therefore interesting for the study of artificial propulsion systems. The propulsion capability was inferred by analyzing the structure of the induced flow in the wake, and by determining the actual force exerted by the profile on the flow. Due to the significant effects of the induced drag associated with marginal vortices and those of the viscous drag, inversely proportional to the aspect ratio, it appears that the propulsive performance of the three-dimensional profile is much lower than that of the two-dimensional profile. The influence of flapping parameters on propulsive performance has also been studied
Hamonier, Julien. "Analyse par ondelettes du mouvement multifractionnaire stable linéaire." Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2012. http://tel.archives-ouvertes.fr/tel-00753510.
Повний текст джерелаBertrand, François. "Modélisation tridimensionnelle du procédé de malaxage à mouvement planétaire de fluides visqueux rhéologiquement complexes." Vandoeuvre-les-Nancy, INPL, 1995. http://docnum.univ-lorraine.fr/public/INPL_T_1995_BERTRAND_F.pdf.
Повний текст джерелаFavreau, Laurent. "Modélisation du mouvement des quadrupèdes à partir de la vidéo." Phd thesis, Grenoble INPG, 2006. http://tel.archives-ouvertes.fr/tel-00379321.
Повний текст джерелаQiu, Zhaopeng. "Déplacement d'un mannequin virtuel dans un environnement encombré : simulation de mouvement en intégrant les contraintes d'équilibre." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00836087.
Повний текст джерелаHue, Valentin. "Simulation de mouvement humain sur postes de travail pour le diagnostic et l'aide à la conception." Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2008. http://tel.archives-ouvertes.fr/tel-00652790.
Повний текст джерелаQiu, Zhaopeng. "Déplacement d'un manequin virtuel dans un environnement encombré : simulation de mouvement en intégrant les contraintes d'équilibre." Paris 6, 2012. http://www.theses.fr/2012PA066537.
Повний текст джерелаThis thesis was carried out in collaboration and co-funding of LSI of CEA/LIST and LBMC of IFSTTAR. The aim of the thesis was to study and develop a method for simulating the movement of a virtual manikin (VM) in a cluttered environment based on a priori knowledge. This thesis presents firstly motion capture (MoCap) experiments. The recorded data were analyzed to define some principles on human motion in cluttered environments. We then propose a general balance criterion and stability margin, based on a simplified model of VM. Then, we present a hierarchical framework that can generate and simulate dynamic movements of VM in a cluttered environment in three stages: a global trajectory of the center of mass (CoM) is generated at the global level to ensure balance in the VM's motion; then the trajectories of end-effectors (EE, ie feet, hands) and postures are generated locally under constraints of kinematics and collision avoidance; finally at the execution level, trajectories (CoM and EEs) and postures are used as references in a dynamic controller associated with VM so that the VM realizes the motion in a simulation. This framework is implemented in a car-ingress scenario in order to evaluate its performance and to suggest future improvements
Lacouture, Loïc. "Modélisation et simulation du mouvement de structures fines dans un fluide visqueux : application au transport mucociliaire." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS139/document.
Повний текст джерелаNumerous mucous membranes inside the human body are covered with cilia which, by their coordinated movements, lead to a circulation of the layer of fluid coating the mucous membrane, which allows, for example, in the case of the internal wall of the bronchi, the evacuation of the impurities inspired outside the respiratory system.In this thesis, we integrate the effects of the cilia on the fluid, at the scale of the cilium. For this, we consider the incompressible Stokes equations. Due to the very small thickness of the cilia, the direct computation would request a time-varying mesh grading around the cilia. To avoid too prohibitive computational costs, we consider the asymptotic of a zero diameter cilium with an infinite velocity: the cilium is modelled by a lineic Dirac of force in source term. In order to ease the computations, the lineic Dirac of forces can be approached by a sum of punctual Dirac masses distributed along the cilium. Thus, by linearity, we have switched our initial problem with the Stokes problem with a punctual force in source term. Thus, we simplify the computations, but the final problem is more singular than the initial problem. The loss of regularity involves a deeper numerical analysis and the development of a new method to solve the problem.We have first studied a scalar version of this problem: Poisson problem with a Dirac right-hand side. The exact solution is singular, therefore the finite element solution has to be defined with caution. In this case, the convergence is not as good as in the regular case, and thus we focused on local error estimates. We have proved a quasi-optimal convergence in H1-norm (s ď 1) on a sub-domain which does not contain the singularity. Similar results have been shown for the Stokes problem too.In order to recover an optimal convergence on the whole domain, we have developped a numerical method to solve elliptic problems with a Dirac mass or a punctual force in source term. It is based on the standard finite element method and the explicit knowl- edge of the singularity of the exact solution. Given the positions of the cilia and their parametrisations, this method permits to compute in 3d a very high number of cilia. We have applied this to the study of the mucociliary transport in the lung. This numerical tool gives us information we do not have with the experimentations and pathologies can be computed and studied by this way, like for example a small number of cilia
Lardy, Julien. "Analyse et simulation cinématique du mouvement du bras lors de la manipulation d'un objet pour la simulation ergonomique à l’aide d’un mannequin numérique." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10018/document.
Повний текст джерелаThe thesis work presented in this manuscript focuses on the simulation of an handling motion, more specifically on the grasp followed by the rotation of a sphere along a fixed single axis. The aim here is, from the analysis of actual motions, to be able to propose an simulation algorithm reproducing motions comparable to experimental data, with the less input as possible and trying to introduce some variability into the simulated motion. 12 volunteers participated to the experiment. Subjects were asked to grasp and turn a sphere of 60mm of diameter. Amplitudes of rotations were ranged from 45° to 360°, in both directions. Experimental data analysis, completed with some simulations of the effect of joint limits on motion, allowed us to investigate several motion control hypothesis as the end-state comfort hypothesis or the minimum work principle. One of the main conclusions is that postural anticipation when grasping seems to be more explained by the comfort at the end of the motion than when grasping. Based on these observations, we proposed a simulation algorithm being original by the way of how it takes into account possible motions allowed by joint limits and by the introduction of variability into the simulated grasp posture. The first results seem to follow most part of the experimental observations giving a strong basis to go towards simulation tools that will come closer to a “human” behavior
LARDY, Julien. "Analyse et simulation cinématique du mouvement du bras lors de la manipulation d'un objet pour la simulation ergonomique à l'aide d'un mannequin numérique." Phd thesis, Université Claude Bernard - Lyon I, 2013. http://tel.archives-ouvertes.fr/tel-00912864.
Повний текст джерелаFusco, Nicolas Delamarche Paul Cretual Armel. "Analyse, modélisation et simulation de la marche pathologique." Rennes : Université Rennes 2, 2008. http://tel.archives-ouvertes.fr/tel-00293627/fr.
Повний текст джерелаQuentin, Françoise. "Contrôle du mouvement de la houle dans un canal." Compiègne, 1992. http://www.theses.fr/1992COMPD547.
Повний текст джерелаKiss, Dóra. "La saisie du mouvement : de l'écriture et de la lecture des sources de la belle danse." Thesis, Nice, 2013. http://www.theses.fr/2013NICE2047.
Повний текст джерелаThis thesis defines if dance could be grasps, and how. Belle danse is taken as a "cas d'école" for unswering this question. Belle danse's origin, contextualisation and definition are given in the first chapter. The second chapter embraces the scriptwriter perspective to analyse Beauchamps-Feuillet notation. The third chapter adopts the reader's perspective (if "reading" can mean "decode", " analyse", "interpret" and "perform".) This chapter explicits some of belle danse's rules that are implicitly explained in the sources. It analyses the "Türkish Dance" (c. 1725). This score —and this dance— has been choreographed by Antony L'Abbé, and notated by François le Roussau. This thesis is written in reference to Guillemette Bolens researches that takes in acount the use of kinesthesis for writing and reading actions. It points to Etienne Darbellay's research based both on "théorie de la métaphore" (Lakoff and Johnson) and memory's process understanding (Croisile), and to crucial researches on belle danse writing and reading, particularly those of Marina Nordera
Leclercq, Edouard. "Vision artificielle par modules bio-fondés spécifiques : forme et mouvement." Le Havre, 1999. http://www.theses.fr/1999LEHA0001.
Повний текст джерелаSimonnet, Marie. "Étude expérimentale du mouvement de bulles en essaim : application à la simulation numérique de colonnes à bulles." Vandoeuvre-les-Nancy, INPL, 2005. http://docnum.univ-lorraine.fr/public/INPL/2005_SIMONNET_M.pdf.
Повний текст джерелаBoth experimental and numerical studies have been performed in aIder to highlight the influence of the bubbles density on the drag law. Important results concerning the relative velocity of bubbles in a swarm have been obtained thanks to laser Doppler velocimetry and optical probe measurements in a pure water / air bubble column. Ln particular, it has been shawn that the relative velocity decreases with the local void fraction up to a critical value of 15 % and increases beyond. These evolutions result from a competition between various phenomena, such as turbulence, hindrance and wake acceleration effects. Based on these conclusions, a drag correlation was obtained and tested in a Computational Fluid Dynamics (CFD) code. The significance of the drag law formulation has been demonstrated, especially for the correct description of the transition between the flow regimes of a bubble column and for the accurate prediction of the liquid velocity profiles measured