Дисертації з теми "Conception de robots"
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Le, Corre Yann. "Conception et commande d'un robot omnidirectionnel." Montpellier 2, 1998. http://www.theses.fr/1998MON20195.
Повний текст джерелаSix, Damien. "Conception et commande de robots parallèles volants." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0046/document.
Повний текст джерелаAerial manipulation is one of the challenges of robotics over the last decade. One of the constraints on the development of aerial manipulators is the limited autonomy of drones, reduced by the load and energy consumption of the on-board manipulator. One way to overcome this limit is to have several drones collaborate on a manipulation task. This thesis deals with the design and control of a new type of autonomous aerial vehicle for manipulation tasks. The concept consists in the collaboration of several drones, in particular quadrotors, through a polyarticulated passive architecture. The robot thus obtained is a fusion between the passive architecture of a parallel robot and several drones. The study of the dynamic model of this robot class highlights a decoupling in the dynamic model. This decoupling allows the design of a cascade control law. This controller provides stabilization and trajectory tracking for these robots. Two study cases are then presented in this thesis: a flying parallel robot with two drones and a flying parallel robot with three drones. For these two robots, a numerical simulation is performed to validate the controller performances. These simulations also allowed to validate the reconfiguration abilities of passive architecture in flight. The work was successfully carried to the experimental stage for the flying robot with two drones
Lamy, Xavier. "Conception d'une Interface de Pilotage d'un Cobot." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00748986.
Повний текст джерелаLiu, Shaoming. "Etude et conception de petits robots industriels : réalisation du robot miniature <> /." [S.l.] : [s.n.], 1991. http://library.epfl.ch/theses/?nr=888.
Повний текст джерелаNouaille, Laurence. "Démarche de conception de robots médicaux : application à un robot de télé-échographie." Thesis, Orléans, 2009. http://www.theses.fr/2009ORLE2046/document.
Повний текст джерелаFrom the design of a tele-echography robot for a specific medical application, a generic methodology for medical robots design is proposed. The study is presented in two parts: a topological synthesis and a dimensional one. The first is made for all medical applications, from a medical robots catalogue built beforehand. The second synthesis is established for a tele-echography robot. A new spherical kinematic structure permitting to reject singularities to the boundaries of the workspace is proposed. After having validated this concept from a kinematic point of view, several multi-criteria optimisations are realised according to kinematic indices (manipulability, dexterity) and bulkiness (compactness). A comparison of indices influence on optimisations is carried out. The concept for teleechography robot chosen and dimensioned, a process of embodiment design with CAD tool is presented. A collaborative design phase with designers is led to improve ergonomics, compactness and aesthetic of the robot. The association of synthesis steps and embodiment design lead to propose a process of medical robots design
Audet, Julien Mathieu. "Conception et validation expérimentale d’un système mécatronique pour la manipulation intuitive de composantes lourdes." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/66710.
Повний текст джерелаThis Master's thesis presents the design and experimental validation of a mechatronic system aimed at facilitating the handling of heavy components in industrial assembly situations, for example the assembly of aircraft fuselage panels. The principle of underactuated redundancy is used to make the interaction between the human operator and the robot safe, intuitive and responsive, while allowing a relatively high payload. This principle consists in using a low-impedance passive mechanism paired with an active system with a payload directly attached to the passive mechanism's end e ector. In the operation of the device, the human operator directly manipulates the payload and thereby induces movements in the passive mechanism. The measured joint variables in the passive mechanism are then used to control the high-impedance active joints of the robot. In previous works, the principle of underactuated redundancy has been applied to translational movements. The aim of this Master's thesis is therefore to apply the principle of underactuated redundancy to rotations in order to rotate a payload in three-dimensional space. First, the principle is applied to a one-degree-of-freedom planar manipulator in order to evaluate the validity of the concept for rotational motions. Then, it is applied to a two-degree-of-freedom spatial manipulator. Active counterweights are used to statically balance the two manipulators. It should be noted that the last rotational motion is not studied since it is easy to implement; static balancing is not required for the rotation around the vertical axis. Subsequently, the rotational system obtained previously is combined with an existing translational system with the objective of freely manipulating a payload in six-dimensional space. The experimental validations are presented to show that the manipulator is safe, intuitive and responsive for the human operator.
Sans, Mariano. "Étude dynamique et aide à la conception d'un robot mobile à pattes." Toulouse, ENSAE, 1986. http://www.theses.fr/1986ESAE0002.
Повний текст джерелаRey, Laurent Edouard. "Environnement pour la conception de commandes de robots /." [S.l.] : [s.n.], 1997. http://library.epfl.ch/theses/?nr=1663.
Повний текст джерелаPierrot, François. "Robots pleinement parallèles légers : conception, modélisation et commande." Montpellier 2, 1991. http://www.theses.fr/1991MON20060.
Повний текст джерелаBlanchet, Laurent. "Contribution à la modélisation de robots à câbles pour leur commande et leur conception." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4021/document.
Повний текст джерелаCable-Driven Parallel Robots form a new class of parallel robots. Those robots, described by the RRPS architecture of hexapods, use coiled cables for their legs instead of rigid element chains of classical parallel robots. This technology is subject to the specifics of cables, particularly the unilateral aspect of the forces exerted by the cables on the platform, the elasticity, the sagging caused by the flexibility and the mass of the cables. We start by revisiting the model of those robots. We do so by considering the elastic catenary behavior of the cables, suitable for large dimension robots. Then we handle interference detection of such a robot, which concern just as much interference between cables, than with and between objects. Said objects are the platform and arbitrary obstacles. Being a safety matter, interference detection must be guaranteed in front of uncertainties and of the complex shapes of the cables. The detection scheme is issued for the RRPS model and the elastic catenary one. Interval analysis methods are used to deal with uncertainties; hierarchic definitions are used for objects. Lastly, we deal with a design process for those robots. This process aims at fitting a robot that satisfy the expressed needs of a given application. To this end, the process looks for the set of values of parameters of a CDPR generic model. Those values allow the resulting robot to satisfy a set of constraints. Those parameters are subject to their own uncertainties. We guarantee the practical usability of the design both by guaranteeing the suitability of all possible robots given by the intervals of the solutions for the parameters, and with minimal widths
Gouaillier, David. "Conception mécanique et commande de l'appareil locomoteur d'un robot humanoïde." Versailles-St Quentin en Yvelines, 2009. http://www.theses.fr/2009VERS0037.
Повний текст джерелаThis work deals with the mechanical design and the control of the legs of a small humanoid robot. In collaboration with Aldebaran Robotics, a complete study of the mechatronics of the biped’s legs is presented. Based on the specifications of the product, the choice of kinematics and actuators is described. Then, an experimental process allowing the sizing of the leg motors is studied, and some biped prototypes are produced in partnership with Aldebaran Robotics. Finally, we look at the results of experimentations with a first implementation of an omni-directional walk control algorithm on the latest prototype
Harton, David, and David Harton. "Modélisation, conception mécanique, étude cinématique et dynamique d'un robot hybride redondant à (6+3) degrés de liberté." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/38156.
Повний текст джерелаTableau d'honneur de la Faculté des études supérieures et postdoctorales, 2019-2020
Les robots collaboratifs prennent de plus en plus de place sur les lignes de production au sein des entreprises manufacturières. Leur facilité d'installation et d'utilisation ainsi que leur caractère sécuritaire constituent des avantages liés à leur utilisation. Les robots collaboratifs sériels sont les plus populaires dans l'industrie. Le principal avantage de ceux-ci est leur grand espace de travail. Cependant, l'inertie des architectures sérielles est généralement élevée, limitant ainsi les performances dynamiques du robot. Les robots parallèles sont plus avantageux sur ce point. Un principal avantage des robots parallèles collaboratifs est que les actionneurs sont situés près de la base, diminuant ainsi l'inertie, comparativement aux robot sériels. Cependant il existe peu de robots parallèles collaboratifs sur le marché. Dans ce mémoire est présenté un concept de robot hybride cinématiquement redondant utilisé pour des applications de coopération humain-robot à faible impédance. Ce robot d'architecture 3-[R(RR-RRR)SR] possède (6+3) degrés de liberté (ddl). La redondance du robot permet d'augmenter l'espace du travail notamment en rotation (comparativement à celui d'un robot non redondant d'architecture semblable) en diminuant le nombre de configurations singulières de type II dans l'espace de travail. Le robot est composé de trois jambes d'architecture hybride ayant chacune trois ddl et trois actionneurs ainsi qu'une plateforme composée d'un mécanisme parallèle plan à trois ddl. Les trois degrés de liberté redondants sont utilisés à la plateforme, afin d'y opérer une pince à partir des actionneurs aux jambes. Ce robot possède de grandes capacités en rotation, soient +-90° en inclinaison et en torsion. Ce robot est conçu de manière à ce qu'il soit rétrocommandable et qu'il ait une faible impédance et une faible inertie. Il ne possède aucun réducteur aux actionneurs. Le concept du robot présenté dans ce document est modulaire. En effet, l'architecture des jambes et de la plateforme peuvent différer légèrement afin d'adapter le robot à une application spécifique. Dans le cas présent, des jambes hybrides et une plateforme plane sont choisies pour des fins de simplicité et de maximisation de l'espace de travail. Dans ce document, les modèles cinématiques et dynamiques du robot, de la plateforme et des jambes sont présentés. Les étapes de conception mécanique ainsi qu'une étude de la sensibilité cinématique du robot sont également détaillés.
Les robots collaboratifs prennent de plus en plus de place sur les lignes de production au sein des entreprises manufacturières. Leur facilité d'installation et d'utilisation ainsi que leur caractère sécuritaire constituent des avantages liés à leur utilisation. Les robots collaboratifs sériels sont les plus populaires dans l'industrie. Le principal avantage de ceux-ci est leur grand espace de travail. Cependant, l'inertie des architectures sérielles est généralement élevée, limitant ainsi les performances dynamiques du robot. Les robots parallèles sont plus avantageux sur ce point. Un principal avantage des robots parallèles collaboratifs est que les actionneurs sont situés près de la base, diminuant ainsi l'inertie, comparativement aux robot sériels. Cependant il existe peu de robots parallèles collaboratifs sur le marché. Dans ce mémoire est présenté un concept de robot hybride cinématiquement redondant utilisé pour des applications de coopération humain-robot à faible impédance. Ce robot d'architecture 3-[R(RR-RRR)SR] possède (6+3) degrés de liberté (ddl). La redondance du robot permet d'augmenter l'espace du travail notamment en rotation (comparativement à celui d'un robot non redondant d'architecture semblable) en diminuant le nombre de configurations singulières de type II dans l'espace de travail. Le robot est composé de trois jambes d'architecture hybride ayant chacune trois ddl et trois actionneurs ainsi qu'une plateforme composée d'un mécanisme parallèle plan à trois ddl. Les trois degrés de liberté redondants sont utilisés à la plateforme, afin d'y opérer une pince à partir des actionneurs aux jambes. Ce robot possède de grandes capacités en rotation, soient +-90° en inclinaison et en torsion. Ce robot est conçu de manière à ce qu'il soit rétrocommandable et qu'il ait une faible impédance et une faible inertie. Il ne possède aucun réducteur aux actionneurs. Le concept du robot présenté dans ce document est modulaire. En effet, l'architecture des jambes et de la plateforme peuvent différer légèrement afin d'adapter le robot à une application spécifique. Dans le cas présent, des jambes hybrides et une plateforme plane sont choisies pour des fins de simplicité et de maximisation de l'espace de travail. Dans ce document, les modèles cinématiques et dynamiques du robot, de la plateforme et des jambes sont présentés. Les étapes de conception mécanique ainsi qu'une étude de la sensibilité cinématique du robot sont également détaillés.
Collaborative robots become present on production lines in factories. Their easiness of installation and use and their safety features make them more attractive. Serial collaborative robots are the most popular in the industry. Their main advantage is their large workspace. However, the inertia of the members of serial robots is the main limitation of the dynamic performances. Parallel robots are more attractive on this aspect. The main advantage of parallel robots is that their actuators are located near the base, decreasing the inertia compared to serial robots. However, there are few parallel collaborative robots on the market. In this Master's thesis, a novel concept of a redundant hybrid robot used for low impedance physical human-robot interaction (pHRI) applications is presented. This robot has a 3-[R(RRRRR) SR] architecture and (6+3) degrees of freedom (dof). Redundancy allows to get a larger workspace especially in rotation (compared to a non-redundant robot with the same architecture) by avoiding some type II singularity configurations in the workspace. The robot has three 3-dof hybrid legs having three actuators, and the platform, which is a 3-dof parallel planar mechanism. The three redundant degrees of freedom are used at the platform to actuate a gripper from the leg actuators. The robot has a large rotational workspace, namely > +-90° in tilt and torsion. This robot is designed to be backdrivable, with a low impedance and a low inertia. The actuators have no gearbox. The robot presented in this document is modular. Indeed, the leg architecture and the platform may differ depending on the application. In the present case, hybrid legs and planar platform are chosen for simplicity and workspace maximisation purposes. In this document, kinematic and dynamic models of the robot are presented. The main mechanical design steps and a study of the kinetic sensitivity are also detailed.
Collaborative robots become present on production lines in factories. Their easiness of installation and use and their safety features make them more attractive. Serial collaborative robots are the most popular in the industry. Their main advantage is their large workspace. However, the inertia of the members of serial robots is the main limitation of the dynamic performances. Parallel robots are more attractive on this aspect. The main advantage of parallel robots is that their actuators are located near the base, decreasing the inertia compared to serial robots. However, there are few parallel collaborative robots on the market. In this Master's thesis, a novel concept of a redundant hybrid robot used for low impedance physical human-robot interaction (pHRI) applications is presented. This robot has a 3-[R(RRRRR) SR] architecture and (6+3) degrees of freedom (dof). Redundancy allows to get a larger workspace especially in rotation (compared to a non-redundant robot with the same architecture) by avoiding some type II singularity configurations in the workspace. The robot has three 3-dof hybrid legs having three actuators, and the platform, which is a 3-dof parallel planar mechanism. The three redundant degrees of freedom are used at the platform to actuate a gripper from the leg actuators. The robot has a large rotational workspace, namely > +-90° in tilt and torsion. This robot is designed to be backdrivable, with a low impedance and a low inertia. The actuators have no gearbox. The robot presented in this document is modular. Indeed, the leg architecture and the platform may differ depending on the application. In the present case, hybrid legs and planar platform are chosen for simplicity and workspace maximisation purposes. In this document, kinematic and dynamic models of the robot are presented. The main mechanical design steps and a study of the kinetic sensitivity are also detailed.
Kalakech, Ali. "Conception d'un logiciel de programmation graphique des robots d'assemblage." Lille 1, 1991. http://www.theses.fr/1991LIL10052.
Повний текст джерелаServant, Clémence. "Conception d'un actionneur prismatique rétractable." Master's thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/68774.
Повний текст джерелаLacasse, Marc-Antoine. "Développement de systèmes pour la collaboration humain-robot : conception d'un robot sériel à 7 ddls partiellement équilibré statiquement." Doctoral thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25357.
Повний текст джерелаLetier, Pierre. "Bras exosquelette haptique: conception et contrôle." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210096.
Повний текст джерелаL’objectif de cette thèse est la conception d’une interface haptique de type exosquelette pour le bras, pour ces missions de téléopération à retour de force. Ce système doit permettre une commande intuitive du robot téléopéré tout en reproduisant
le plus fidèlement possible les efforts.
Les chapitres 2 et 3 présentent les études réalisées sur un banc de test à 1 degré de liberté, destinées à comprendre le contrôle haptique ainsi qu’à évaluer différentes technologies d’actionnements et de capteurs. Les principales méthodes de contrôle sont décrites théoriquement et comparées en pratique sur le banc de test. Les
chapitres 4 et 5 décrivent le développement de l’exosquelette SAM destiné aux futures applications de téléopération spatiale. La conception cinématique, le choix des actionneurs et des capteurs sont décrits. Différentes méthodes de contrôle sont également comparées avec des expériences de réalité virtuelle (sans robot esclave) et de téléopération. Pour finir, le chapitre 6 présente le projet EXOSTATION, un démonstrateur de téléopération haptique spatiale, dans lequel SAM est utilisé comme interface maître.
Doctorat en Sciences de l'ingénieur
info:eu-repo/semantics/nonPublished
Vega, Emanuel Pablo. "Conception orientée-tâche et optimisation de systèmes de propulsion reconfigurables pour robots sous-marins autonomes." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0067/document.
Повний текст джерелаIn this PhD thesis, the optimization of the propulsion and control of AUVs is developed. The hydrodynamic model of the AUVs is examined. Additionally, AUV propulsion topologies are studied and models for fixed and vectorial technology are developed. The fixed technology model is based on an off the shelf device, while the modeled vectorial propulsive system is based on a magnetic coupling thruster prototype developed in IRDL (Institut de Recherche Dupuy de Lôme) at ENI Brest. A control method using the hydrodynamic model is studied, its adaptation to two AUV topologies is presented and considerations about its applicability will be discussed. The optimization is used to find suitable propulsive topologies and control parameters in order to execute given robotic tasks, speeding up the convergence and minimizing the energy consumption. This is done using a genetic algorithm, which is a stochastic optimization method used for task-based design.The results of the optimization can be used as a preliminary stage in the design process of an AUV, giving ideas for enhanced propulsive configurations. The optimization technique is also applied to an IRDL existing robot, modifying only some of the propulsive topology parameters in order to readily adapt it to different tasks, making the AUV dynamically reconfigurable
Balderas, Hill Rafael. "Conception des robots rapides à consommation énergétique drastiquement réduite." Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0028.
Повний текст джерелаIt is well-known that one of the most representative future challenges in industrial robotics, is to increase the energy efficiency of robot manipulators. In industrial applications, such as high-speed pick-and-place operations, the accuracy is typically the most important criteria to measure the robot performance. Nevertheless, the design trends to operate at high speeds are shifting to the design of robots, which are not only accurate, but also they can perform in an energy-efficient way. This thesis proposes an actuation principle for reducing the energy consumption of high-speed robots by placing variable stiffness springs (VSS) in parallel to the motors that actuate the links of a high-speed robot. The main idea is to smartly tune online the force/displacement relation of the VSS, associated to the VSS stiffness, so that the robot is put in near a resonance mode, thus considerably decreasing the energy consumption during fast pseudoperiodic pick-and-place motions. By adding a spring with controllable stiffness in parallel to the robot actuated links, two performances are achieved: i) direct power connection between the motor and the robot links, thus ensuring accuracy at high-speeds; ii) control of the stored potential energy to be released per cycle of the pick-and-place motion, thus exploiting the robot natural dynamics at highspeeds, and therefore reducing the energy consumption. The experimental results of the suggested approach on an industrial-sized prototype show the drastic reduction of energy consumption for fast quasi-periodic pick-and-place-like motions
Miribel, Jean-François Veillon Gérard. "Conception et implantation d'un système de programmation de robots." S.l. : Université Grenoble 1, 2008. http://tel.archives-ouvertes.fr/tel-00312030.
Повний текст джерелаBalit, Etienne. "Vers des robots animés : outils et méthodes pour l'intégration d'artistes animateurs dans la conception de robots sociaux expressifs." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAM056.
Повний текст джерелаOnce only experimental devices, social robots are beginning to arrive in homes, schools, hospitals and nursing homes. They are becoming companions of our education, health and well-being. These first commercial launches of social robots confirm the importance of the human-robot interaction anticipated by researchers. Indeed, since non-verbal communication forms a major part of communication in humans, we cannot help but interpret the movements and behaviours of robots as the expression of mental states. This effect of the expressiveness of social robots implies that they must be carefully designed to avoid disrupting the interaction.The fields of video games and animated movies have long been interested in the design of such expressive movements. Many tools and methods have been developed to support the creation of virtual character movements. They have made possible the combination of the latest technological advances with the talents of animation artists who are masters in the art of bringing life into characters. From this observation, the focus of this thesis is the design of tools and methods to integrate animation artists into the design process of social robots. In particular, we investigate the minimal adaptations of the creative process of animation artists made necessary by the specific characteristics of the robotic medium.The contributions of this thesis are as follows:- A framework for prototyping animated social robots, based on mapping and synchronizing the physical robot with an animated virtual robot in a 3D character animation tool.- A second robotic animation tool integrating direct manipulation into the keyframing animation process.- A methodology for designing parametric animation through the collaboration of an animation artist and a developer, as well as the tools and software interface to support this collaboration.- The evaluation by animation artists of the robotic animation tool by direct manipulation and of the method of generalization of an animation to new geometric constraints
Karouia, Mourad. "Conception structurale de mécanismes parallèles sphériques." Châtenay-Malabry, Ecole centrale de Paris, 2003. http://www.theses.fr/2003ECAP0916.
Повний текст джерелаA method for systematic synthesis of spherical parallel mechanisms architectures, based on algebraic proprieties of the Lie group of displacements, was developed. Then structural types of spherical parallel mechanisms were enumerated and classification of the mechanisms was presented. An approach based on the analysis of finite displacements sets proprieties was employed to identify singular configurations of mechanisms. Permanent finite singularities induce additional motilities and then new 4-dof and 5-dof over-constrained mechanisms were deduced. Finally, an enumeration of these novel 4-dof and 5-dof parallel mechanisms was obtained
Langard, Morgan. "Robot humanoïde bioinspiré : Conception et expérimentation." Electronic Thesis or Diss., Angers, 2023. http://www.theses.fr/2023ANGE0079.
Повний текст джерелаIn the field of humanoïd robotic, bipedal walking is still an open research fiel, such as the development of control laws, trajectory generation or original architecture designs. Bipedal robots classicaly use rotative motors for their actuation system. These motors are usually coupled with a reduction system in order to achieve sufficient torques. This combination impose to compromise between the output torque and the mecanical reversibility of the system, which limits impact absorption. An alternative is the use of direct-drive linear actuators, inherently reversible. However, linear motors are scarcely used with a rotative actuator linked to a ball-screw, with a limited reversibility. As linear motors produce a translational force, a torque is generated through a lever arm. This specificity requires an optimal placement of the actuators to en sure the feasability of the required torques. To improve our knowledge of this technology and evaluate its use in the robotic field, multiple bipedal planar robot architectures are simulated along different trajectories and compared. In parallel, an optimal geometry is computed for each architecture to maximize motion feasability. From these results, a prototype using solely direct-drive linear actuators is designed and built in order to verify simulation data
Leguay-Durand, Sylvie. "Conception et optimisation de mécanismes parallèles à mobilités restreintes." Toulouse, ENSAE, 1998. http://www.theses.fr/1998ESAE0014.
Повний текст джерелаPajon, Adrien. "Humanoid robots walking with soft soles." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS060/document.
Повний текст джерелаWhen unexpected changes of the ground surface occur while walking, the human central nervous system needs to apply appropriate control actions to assure dynamic stability. Many studies in the motor control field have investigated the mechanisms of such a postural control and have widely described how center of mass (COM) trajectories, step patterns and muscle activity adapt to avoid loss of balance. Measurements we conducted show that when stepping over a soft ground, participants actively modulated the ground reaction forces (GRF) under the supporting foot in order to exploit the elastic and compliant properties of the surface to dampen the impact and to likely dissipate the mechanical energy accumulated during the ‘fall’ onto the new compliant surface.In order to control more efficiently the feet-ground interaction of humanoid robots during walking, we propose adding outer soft (i.e. compliant) soles to the feet. They absorb impacts and cast ground unevenness during locomotion on rough terrains. However, they introduce passive degrees of freedom (deformations under the feet) that complexify the tasks of state estimation and overall robot stabilization. To address this problem, we devised a new walking pattern generator (WPG) based on a minimization of the energy consumption that offers the necessary parameters to be used jointly with a sole deformation estimator based on finite element model (FEM) of the soft sole to take into account the sole deformation during the motion. Such FEM computation is time costly and inhibit online reactivity. Hence, we developed a control loop that stabilizes humanoid robots when walking with soft soles on flat and uneven terrain. Our closed-loop controller minimizes the errors on the center of mass (COM) and the zero-moment point (ZMP) with an admittance control of the feet based on a simple deformation estimator. We demonstrate its effectiveness in real experiments on the HRP-4 humanoid walking on gravels
Lesellier, Maximilien. "Conception, optimisation et commande d'un stablisateur actif pour la compensation des vibrations des robots parallèles à câbles." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS004/document.
Повний текст джерелаIn this thesis, an active stabilizer is designed to be embedded on the platform of a Cable-Driven Parallel Robot (CDPR) and to damp vibrations affecting the platform by producing a wrench on it.First, a mechanical modeling of various active stabilization devices allows the choice of an appropriate solution for vibration damping. The selected solution consists of a stabilizer composed of rotating arms. Then, this model is used to optimize the stabilizer structure by looking at which arm arrangement maximizes the power delivered by the stabilizer to the CDPR mobile platform.A control strategy is then proposed for the system consisting of the CDPR mobile platform and the embedded active stabilizer. As this system consists of two parts operating at different time scales, the singular perturbation theory is used to prove the stability of the proposed control.Finally, simulation experiments make it possible to validate the use of an on-board active stabilizer to damp the vibrations of the mobile platform of a CDPR, and controlled with the control law proposed in this thesis
Kaci, Lila. "Conception et commande d’un robot industriel en bois." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0053.
Повний текст джерелаDesigning robots with bio-sourced materials (BSM) for eco-design purpose has almost never been explored in the past. This thesis investigates the potential of using bio-sourced materials, which have almost no environmental impact, instead of metals for robot design. Wood is one of the best candidates because of its interesting mechanical properties. However, wood performance / dimensions vary with the atmospheric conditions / external solicitations. Thus, this thesis is in the framework of the RobEcolo project whose challenging to design a stiff and accurate wooden industrial parallel robot. To ensure optimal performance of the wooden robot (specifically the accuracy) and in order to minimize the uncertainty of the BSM models and the errors due to the dimensional variations due to atmospheric conditions, exteroceptive sensors can be used to control the robot. In order to satisfy these requirements, we propose in this manuscript a modification of the Euler-Bernoulli beam theory which is used to develop accurate and fast wood elastic models able to predict the realistic robot static and dynamic behaviors. Finally, theoretical developments proposed in this thesis allowed the prototyping of an industrial wooden five-bar mechanism and the robot performance in term of safeness and accuracy has been validated experimentally on the prototype
SEGUILLON, MARIE CLAUDE. "Conception et implantation de la commande d'un robot hydraulique : integration dans un systeme multi-robots multi-capteurs." Rennes 1, 1989. http://www.theses.fr/1989REN10143.
Повний текст джерелаVoisembert, Sebastien. "Conception et modélisation d'un bras d'inspection robotisé ultraléger." Paris, ENSAM, 2012. http://www.theses.fr/2012ENAM0049.
Повний текст джерелаOne of the major challenges in robotics is the improvement of inspections operations in confined and hazardous area using unmanned remote handling systems. Articulated arm are used in this case to carry some diagnostic tools for the inspection tasks. These long reach multi-link carriers should be characterized by a large workspace and reduced mass. Today, with about ten degrees of freedom and ten meters long they have reached their performance limit. Indeed, for long reach ,the arm should have enough torque to carry its own weight plus the payload in cantilever mode and enough stiffness to minimize the deflection caused by the gravity. Despite the use of best materials and components, this kind of robot has reach its performance limit. Overcoming this limit needs a change in paradigms. Therefore a problem-solving, analysis and forecasting tool TRIZ (theory of inventive problem solving) is used. It leads naturally to identify the origin of the dilemma: the proper weight of the arm and so its mass under gravity. In particular, it proposes to postulate that a no-mass robot exists. An analysis of the properties of such a robot leads to the patented concept of an ultra light inflatable robot with unique and constant volume and constant diameter joints. This new object would benefit from advantages such as easy implementation, harmlessness toward its environment and so the ability to lean on it without damage. Therefore it could easily increase its range and its foreseen low-cost building would open a wide field of new applications. This thesis work, elaborates appropriate technical concepts and dimensioning methods for ultra light inflatable robots. The payload and length performances of an inflatable robot are analytically validated. Experimentations and a finite-element modeling are used for a pre-dimensioning of the joints and different modes of construction are prototyped in partnership with, specialized company in thigh-tech textile. The joints are also modeled with a simple mass-spring system for time efficient simulations of deflections under load of a DOF inflatable robot. Actuators and sensors are pre-designed and an original cable transmission is developed. Finally, the geometric and kinematic models are built and we set the control problem of such a robot for future works
Saucy, Patrick. "Conception d'un environnement réparti pour le contrôle de robots mobiles distants /." [S.l.] : [s.n.], 2000. http://library.epfl.ch/theses/?nr=2142.
Повний текст джерелаMondada, Francesco. "Conception de structures neuronales pour le contrôle de robots mobiles autonomes /." [S.l.] : [s.n.], 1997. http://library.epfl.ch/theses/?nr=1598.
Повний текст джерелаLupien, Simon. "Développement d'un logiciel d'aide à la conception pour les robots quadrupèdes /." Montréal : École de technologie supérieure, 2002. http://wwwlib.umi.com/cr/etsmtl/fullcit?pMQ75968.
Повний текст джерела"Mémoire présenté à l'École de technologie supérieure comme exigence partielle à l'obtention de la maîtrise en génie de la production automatisée". Bibliogr.: f. [110]-114. Également disponible en version électronique.
Lupien, Simon. "Développement d'un logiciel d'aide à la conception pour les robots quadrupèdes." Mémoire, École de technologie supérieure, 2002. http://espace.etsmtl.ca/794/1/LUPIEN_Simon.pdf.
Повний текст джерелаCourrèges, Fabien. "Contributions à la conception et commande de robots de télé-échographie." Orléans, 2003. http://www.theses.fr/2003ORLE2058.
Повний текст джерелаMosser, Loïc. "Contribution à la conception et la fabrication de robots souples pneumatiques." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD009.
Повний текст джерелаThis thesis covers the design of pneumatic soft robots, which move thanks to deformation using pneumatic chambers. We contribute to the design of a robot from the formulation of the need to the manufacturing of the robot. We address the problems associated with the design and manufacture of these robots. For design, we propose a genetic algorithm accelerated by the use of an AI model enabling rapid estimation of the behavior of new geometries and the search for solutions. For manufacturing, we propose an instrumented silicone additive manufacturing platform enabling the acquisition of point clouds on each produced layer. Indicators are then proposed to monitor ongoing production and the integrity of soft robots, and these indicators are evaluated experimentally
Zhu, Minglei. "Control-based design of Robots." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0043.
Повний текст джерелаIt is well -known that parallel robots have a lot of applications in industry for their high stiffness , high payload , can reach higher acceleration and speed . However , because of their complex structure , their control may be troublesome. When high accuracy is needed, the detailed robot model is necessary . However , even detailed models still suffer from the problem of inaccuracy in reality because of robot assembly and manufacturing errors . Sensor - based control approaches have been proven to be more efficient than model-based controllers in terms of accuracy since they overcome the complex robot models and inconsistency errors. Nevertheless, when applying the visual servoing, there are always some problems in the control process , such as the controller singularities . Thus , this thesis proposes proposes a control based design metodology which takes into account the accuracy performance of the controller in the design process to get the geometric parameters of the robot. This thesis applied the control-based design methodology to the optimal design of three types of parallel robots: Five-bar mechanisms , DELTA robots , Gough -Stewart platforms . Three types of controllers are selected in the design process : leg -direction -based visual servoing, line-baesd visual servoing and image moment visual servoing . Design optimization problems are formulated to find the geometric parameters of the robot . Co-simulations are performed to check the accuracy performance of the robots obtained from the optimization. Experiments are performed with two DELTA robot prototypes in order to validate the controller accuracy
Venkateswaran, Swaminath. "Conception d'un robot bio-inspiré pour l'inspection des canalisations." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0024.
Повний текст джерелаPiping inspection robots play an important role in industries such as nuclear, chemical and sewage. They can perform the assigned task with better accuracy and at the same time, they can operate within an irradiated or a polluted environment thereby reducing the risks for humans. This doctoral thesis focuses on the design of a bio-inspired robot for the inspection of pipelines. The thesis begins with the case study of a rigid bio-inspired piping inspection robot which was developed at LS2N, France for a project with AREVA. Static and dynamic force models are developed to understand the clamping forces and the torques on the actuators of the robot. Experimental validations are then done on the prototype to interpret the real-time actuator forces. In order to improve mobility, the robot architecture is made flexible by the addition of a Tensegrity mechanism. Two types of Tensegrity mechanisms are proposed and analyzed using algebraic methods to understand their tilt limits and to identify the influences on the design parameters. Experiments are performed on one of the prototypes of the Tensegrity mechanism developed at LS2N for two types of trajectories in the vertical and horizontal orientations. An optimization approach is then being implemented to identify the sizes of motors that can permit the flexible piping inspection robot to overcome bends and junctions for a given range of pipeline diameters. A digital model of the flexible robot is then realized in CAD software
Le, Nagard Éric. "Poste de travail pour la programmation de robots autour de "RCCL"." Paris 11, 1988. http://www.theses.fr/1988PA112327.
Повний текст джерелаThis thesis is the result of reflections on the theme of the realisation of a workstation for robot programming. Its aim is to prove the feasibility of a system which integrates the modelling of robots, the assistance on program writing and the simulation and validation of written programs. This lead us to make a CAD type system dedicated to the modelling of articulated systems as the manipulators are. The data collected by the system are exploited within the context of a data base to enable the visualization of the robot computerized movements in the form of an animated image (by means of a simulator). These data are also used to generate automatically the direct and inverse kinematic models of a large range of manipulators. The realisation of the main modulus of a typical robot computer programming workstation enabled us to suppress the stumbling points of such a system
Harshe, Mandar. "Analyse et conception d'un système de rééducation de membres inférieurs reposant sur un robot parallèle à câbles." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00933732.
Повний текст джерелаMohamed, Bachar. "Torse biofidèle pour le robot ROBIAN : analyse et conception basées sur l'équivalence dynamique des systèmes." Versailles-St Quentin en Yvelines, 2004. http://www.theses.fr/2004VERS0007.
Повний текст джерелаThe objective of the robian project started in 2000 is the realization of a biped experimental platform dedicated to the comprehension of the human being locomotion complex phenomena. A dynamic walk of this robot is required within the framework of this project. The work presented in this manuscript relates to the analysis and the design of a biologically inspired torso for robian robot. The robian project is presented at the beginning of this manuscript. A bibliographical study on an international scale of the research tasks in this field is then carried out. The innovative approach used for the design of the robian torso is based on dynamic equivalence between two mechanical systems. Indeed, we look for a simple mechanism able to reproduce the dynamic behavior of a model of the human torso, which is in our case the upper part of a virtual mannequin carrying out a three-dimensional walk resulting from motion recordings on a healthy subject. This approach is detailed and applied to a set of mechanisms having 2, 3 and 4 dofs leading to the following result: a mechanism having 4 dofs is necessary and sufficient in order to ensure dynamic equivalence with the model used of the human torso during a walking gait. A structural analysis allowed the choice of an r3p mechanism for the torso of robian. Two optimization procedures allowed the development of the design schedule of this mechanism. The experimental validation of the constructed torso prototype was then carried out by checking the dynamic contribution of the prototype on the locomotor apparatus of robian. These experimental results made it possible to initiate the tests on dynamic walking patterns
Drouin, Christophe. "Contribution à une conception appropriée de robots médicaux : vers une démarche mécatronique." Phd thesis, Université d'Orléans, 2013. http://tel.archives-ouvertes.fr/tel-00977814.
Повний текст джерелаFleury, Sara. "Architecture de contrôle distribuée pour robots mobiles autonome : principes, conception et applications." Toulouse 3, 1996. http://www.theses.fr/1996TOU30121.
Повний текст джерелаDupourqué, Vincent. "Vers de nouveaux outils d'aide a la conception des controleurs de robots." Besançon, 1989. http://www.theses.fr/1989BESA2052.
Повний текст джерелаMuÑoz-Meléndez, Angélica. "Coopération située : une approche constructiviste de la conception de colonies de robots." Paris 6, 2003. http://www.theses.fr/2003PA066460.
Повний текст джерелаWang, Ting. "Contribution à l’étude, la conception et la mise en oeuvre de stratégie de contrôle intelligent distribué en robotique collective." Thesis, Paris Est, 2012. http://www.theses.fr/2012PEST1109/document.
Повний текст джерелаIn this thesis, it concentrated the multi robot team navigating in an unknown environment. In our multi robot team, there is a humanoid robot as a leader and a team of two-wheel nonholonomic robots which form a vertical formation. Besides, a top camera and a computer which is a supervisor are the auxiliary robots in the multi robot team. The main purpose of the thesis is to propose an online and an offline navigation strategy for the closed and open area respectively. The core of navigation strategies is the same and it included path planning part and control part. Both the two parts constructed on the virtual structure of the formation robot team. In the former part, it improved the path planning part by the reinforcement Q learning and the image processing to acknowledge the unknown environment. And it applied the Adaptive Neural Fuzzy Inference System (ANFIS) algorithm to control of both the single nonholonomic robot and formation robot team. Furthermore, the strategies are applied to the formation robot team and the multi robot team in both closed and open environment. Simulations and real experiments are provided in the detail in the thesis. The strong points of the contribution are :- Proposition, conception, realization and experimental validation of machine learning based adaptive control for a nonholonomic single robot (in a group of robots). Four international publications have valorized this part of the doctoral Works. - Proposition, conception, realization and experimental validation of an adaptive intelligent control strategy hybridizing Artificial vision and Machine Learning for a group of nonholonomic homogeneous robots. Two international publications have valorized this part of the doctoral Works.- Proposition, conception, realization and experimental validation of an adaptive intelligent control strategy hybridizing Artificial vision and Machine Learning for a group of heterogeneous robots. Two international publications have valorized this part of the doctoral Works. It is pertinent to emphasize the investigations relative to the above-mentioned works have been awarded by: ″Innovation Award 2011″ of Industrial Robot
Jeanneau, Guillaume. "Analyse et conception d'un robot parallèle sous-actionné intrinsèquement sûr." Thesis, Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0018.
Повний текст джерелаThis thesis introduces the R-Min robot, a concept of an underactuated parallel robot designed to reduce the efforts due to an impact with a person. The architecture is based on the five-bar mechanism on which revolute joints are added on the forearms. The geometrico-static and kinemato-static models are deduced from the robot energetic condition necessary for robot equilibrium. A discrete study of the solutions to these models allows to obtain the workspace of the robot and the locus of its singularities. The study then focuses on the safety analysis. A reduced massspring-mass model, taking into account a dynamically consistent stiffness, is defined allowing to obtain a simplification of the dynamic model at the time of the impact and thus gives a new way to characterize the safety of compliant robots. An experimental analysis of the RMin robot allows first to validate the feasibility of modeling and controlling this type of structure while reducing its oscillations. Then the respective effect on the safety of the underactuation, of the stiffness, of the velocities and of the impacted object is evaluated for the impact of the R-Min robot with a dedicated measurement device. Results are reinforced in simulation and leads to the conclusion that an underactuated parallel structure permits safety improvement of intrinsically safe robots
Anthierens, Cédric. "Conception d'un micro robot à actionneur électropneumatique pour l'inspection intratubulaire." Lyon, INSA, 1999. http://theses.insa-lyon.fr/publication/1999ISAL0099/these.pdf.
Повний текст джерелаMicro Electro Mechanical Systems (MEMS) integrate many current products and are not only the concern of military defense or medicine. Nowadays micro actuators are diversified by using different kind of energy, and creating different motions. Several applications require small systems to inspect confined and hostile places. Vapour generators in nuclear plants are composed with 3000 to 5000 vertical pipes of 17 mm diameter. These pipes endure high mechanical constraints and have to be inspected to detect eventual cracks. Our study is based on the design, modeling and implementation of a microrobot enable to move up and carry sensors in these pipes. It moves as an inchworm and then is cornposed by 2 blocking modules that brace the robot on the pipe sides, and one stretching module that creates a step. This actuator is pneumatic and composed by metal bellows. By this original design, the microrobot has a good power to volume ratio and thus it can carry a load higher than 1 kg. Its good positioning accuracy is proved with a 90 mm course where the error of positioning is less than 60 μm. A PID control law is used to control the robot but state feedback control law is planned
Kancir, Pierre. "Méthodologie de conception de système multi-robots : de la simulation à la démonstration." Thesis, Lorient, 2018. http://www.theses.fr/2018LORIS519/document.
Повний текст джерелаMulti-robot System Design Methodology : from Simulation to Demonstration Multi-robot systems are complex but promising systems in many fields, the number of academic works in this field underlines the importance they will have in the future. However, while these promises are real, they have not yet been realized, as evidenced by the small number of multi-robot systems used in the industry. However, solutions exist to enable industrialists and academics to work together on this issue. We propose a state of the art and challenges associated with the design of multi-robot systems from an academic and industrial point of view. We then present three contributions for the design of these systems: a realization of a heterogeneous swarm as a practical case study in order to highlight the design obstacles. The modification of an autopilot and a simulator to make them compatible with the development of multi-robot systems. Demonstration of an evaluation tool based on the two previous contributions. Finally, we conclude on the scope of this work and future perspectives based on open source
Girerd, Cédric. "Conception de robots à tubes concentriques et application à l'inspection des cellules olfactives." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD005/document.
Повний текст джерелаThis PhD thesis is part of the ANR NEMRO project, whose goal is to study the hypothetical correlation between olfactory deficiency and neurodegenerative diseases. For this purpose, an optical biopsy of the olfactory epithelium must be performed. However, this area is not accessible today with conventional tools. To go beyond this limitation, we propose to investigate the use a concentric tube robot (CTR). Its synthesis is performed from medical images. It takes into account the stability criteria, inter-subject variability, and is associated to a FTL (Follow-The-Leader) deployment. As the device is mounted on the subject, it has to be compact and lightweight. Thus, a specific deployment sequence simplifies the actuation unit, and an implementation is proposed using multimaterial additive manufacturing. Preliminary evaluations of the FTL deployment capabilities and the key components of the device allowed to validate the approach chosen for the NEMRO project, and its feasibility
Le, Mesle Valentin. "Conception et analyse d'un robot parallèle à cinq degrés de liberté pour des opérations d'empaquetage rapides." Thesis, Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0025.
Повний текст джерелаFast pick and place operations, such as inserting products into boxes, are very important in the food industry. These operations are usually performed by Delta robots equipped with UPU chains, which connect the robot base and end effector via universal joints. However, the use of these chains generates a reduction of the working space of the Delta robot, as well as a premature wear of the cardan joints. This CIFRE thesis, carried out with the company MG-Tech, introduces several modified Delta leg kinematics allowing to transmit a rotation to the end effector thanks to a succession of parallelograms (or anti-parallelograms) integrated to a Delta leg. The use of one or more of these legs allows for up to three additional rotations to the end effector. An optimization process was implemented to determine the geometrical parameters of a five degrees of freedom robot, leading to the realization of a pre-industrial prototype. After a continuous operation of one million cycles under conditions typical of MG-Tech’s applications, a comparative study was conducted between the prototype and MG-Tech’s current robot. The results show equivalent kinematic performances for both robots: the main sources of backlash come from mechanisms embedded in the platform
Bayart, Mireille. "Conception d'un système de pilotage temps réel pour une cellule d'assemblage automatisé." Lille 1, 1988. http://www.theses.fr/1988LIL10104.
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