Dissertations / Theses on the topic 'Développement de la mécatronique'
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Goulet, Mathieu. "Hexapode : développement mécatronique d'un robot marcheur." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23691/23691.pdf.
Full textFouz, Moustafa. "Développement mécatronique et contrôle de l'exosquelette des membres inférieurs SOL0.1." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLV048.
Full textThe thesis' subject concerns the development of the control architecture and the trajectory generation for a scalable exoskeleton called SOL. The biomedical study outcomes revealed that the progressiveness of the disease could be solved by early and continuous rehabilitation throughout the growth. Thus, the importance of using an exoskeleton has a positive impact since it is used to provide locomotion and rehabilitation, at the same time. However, the current exoskeletons cannot be adapted to fit the continuous change of teenager biomechanics throughout his growth. Hence, the need for developing a scalable exoskeleton that can cope with the growing needs is still a challenging topic. Especially, the control architecture of such a scalable device was tackled in this thesis, in both hardware and software developments to incorporate the scalability features. Initiative steps have been passed towards the goal of achieving a scalable exoskeleton, by contributing in hardware developments that allowing further enhancements to be included throughout the advancement of the project. Firmware developments achieved have addressed the scalability needs in terms of control by considering the three hierarchical levels (which are: High, Middle, and low-levels of control). More specifically, a focus was dedicated to the generation of the gait reference trajectories for the growing population. Data were collected from healthy subjects wearing a passive exoskeleton to extract the proper joint trajectories, then, the data were processed to build a gait library to be deployed on the exoskeleton controller. Finally, by knowledge of the subject biomechanics, the controller is able to fetch the proper trajectories and inject the reference trajectories to the SOL's actuators. A first prototype of the exoskeleton is used to manifest the outcomes of the proposed Evolutionary Gait Generator (E.G.G.). As a first prototype, A free walking in air motion is tested, where the validation of the proposed hardware and control loops are demonstrated. Studying the exoskeletons' control responses against probable external disturbances and fail-safe scenarios are still future work mandatory before achieving first human-exoskeleton testing
Ben, Said Amrani Nabil. "Evaluation de la fiabilité d’un système mécatronique en phase de développement." Thesis, Angers, 2019. http://www.theses.fr/2019ANGE0024.
Full textReliability analysis of mechatronic systems is one of the most dynamic fields of research. This analysismust be conducted during the design phase, in order to model and to design safe and reliable systems.After presenting some concepts of mechatronic systems and of dependability and reliability, we presentan overview of existing approaches (quantitatives and qualitatives) for the reliability assessment and wehighlight the perspectives to develop. The criticality of mechatronic systems is due, on one hand, to multi-domain combination (mechanical, electronic, software), and, on the other hand, to their different functionaland dysfunctional aspects (hybrid, dynamic, reconfigurable and interactive). Therefore, new approaches fordependability assessment should be developped. We propose a methodology for reliability assessment inthe design phase of a mechatronic system, by taking into account multi-domain interactions and by usingmodeling tools such as Petri Nets and Dynamic Bayesian Networks. Our approach also takes into accountepistemic uncertainties (uncertainties of model and of parameters) by using an evidential network adaptedto our model. Our methodology was applied to the reliability assessment of an "intelligent actuator" fromPack’Aero
Campeau-Lecours, Alexandre. "Développement d'algorithmes de commande et d'interfaces mécatroniques pour l'interaction physique humain-robot." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29608/29608.pdf.
Full textFor a long time, simple and advanced systems such as robots have been helping humans to accomplish several tasks. In some cases, the system simply replaces the operator while in other cases, the system cooperates with him/her. In the latter case, the system is more a tool used to increase performance or to avoid unpleasant tasks. The principal advantage of this human augmentation is to leave a certain latitude to the operator in the task decision process. Specific strengths of humans and robots are then combined to obtain a synergy, that is obtaining a more complete system than the sum of its parts. However, achieving complex tasks in a way that is intuitive to the human represents a huge challenge. While robots were previously segregated from humans and then designed and programmed accordingly, the new generation of robots must be able to perceive their environment and the human intentions and to respond to them safely, adequately, intuitively and ergonomically. This leads to several opportunities in a wide range of fields such as materials handling, assembly, physical rehabilitation, surgery, learning through haptic simulations, help to disabled people and others. This thesis comprises three parts. The first one deals with the control of physical interaction robots. The approach to an intuitive control, good practices, an interaction algorithm adapting to human intentions and the adaptation of a computed-torque control scheme for human-robot interaction are presented. The second part presents hands on payload systems which are more intuitive to use for the operator. These system developments include mechanical and advanced control innovations. The third part introduces safety features. First, the development of a vibration observer/controller algorithm is presented and then the development of a sensor detecting human proximity is reported. This thesis attempts to provide contributions, in a scientific spirit as much as for industrial applications requiring immediate solutions.
Ammar, Randa. "Approche de co-développement pour l’intégration des modèles des produits mécatroniques avec les modèles des systèmes de production." Thesis, CY Cergy Paris Université, 2020. http://www.theses.fr/2020CYUN1107.
Full textEngineered products in the era of Industry 4.0 are constrained to be more compact, smart and efficient. Manufacturing companies are today forced to adapt their production systems with constant and unexpected changes in the customer requirements to face different needs and user modes. Therefore, production constrains need to be integrated in the early phases of the development process of multidisciplinary complex systems, and both the product and the management of the production system should to be optimized concurrently. In this thesis, we propose an approach to integrate the production system constraints with the product design process. For this, the principles of the Set-Based Concurrent Engineering (SBCE) approach are implemented using the model-based system engineering (MBSE) method, in order to reduce the iterative exchange loops between engineering stakeholders. The implementation was performed in a software framework prototype using Python language. A case study of an Electronic Throttle Body (ETB) was used to illustrate and validate the approach. The analysis of the case study allowed us to conclude that our approach supports system designers to integrate production constraints in the early design process and make the right design decisions to avoid heavy investment in the production system
Boisvert, Maxime. "Développement et expérimentation d’une stratégie optimale de freinage régénératif pour les véhicules électriques basée sur la commande avancée du glissement de la roue." Thèse, Université de Sherbrooke, 2015. http://hdl.handle.net/11143/10599.
Full textHamza, Ghazoi. "Contribution aux développements des modèles analytiques compacts pour l’analyse vibratoire des systèmes mécatroniques." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC018/document.
Full textThis thesis focuses on the development of a method for the preliminary design of mechatronic systems, taking into account the vibratory aspect, without going through costly design techniques, such as 3D CAD and finite element method.In an early stage of the design process of mechatronic systems, simple analytical models are necessary to the architect engineer in Mechatronics, for important conceptual decisions related to multi-physics coupling and vibration. For this purpose, a library of flexible elements, based on analytical models, was developed in this thesis, using the Modelica modeling language.To demonstrate the possibilities of this approach, we conducted a study of the vibration response of some mechatronic systems. Therefore, the pre-sizing approach was applied in a first phase to a simple mechatronic system, formed with a rectangular plate supporting electrical components such as electric motors and electronic cards, and in a second phase the approach was applied to a wind turbine, considered as a complete mechatronic system. Simulation results were compared with the finite elements method and other studies found in the scientific literature. Simulation results have enabled us to prove that the developed compact models assist the mechatronic architect to find results of simulation with an important accuracy and a low computational cost
Granon, Leonida. "De la PME/PMI manufacturière traditionnelle à l’entreprise mécatronique : étapes clefs et proposition d’un référentiel mécatronique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAA021.
Full textMechatronics seems to be a source of organizational renewal as well as providing access to new markets characterized by the growing digitization of products and services. A question arises then: are organizations engaged in mechatronic design and production activity specific? And if so, within a broader context of Industrie 4.0, markedly digitized, can we provide a framework with guidelines that can be applied by the small and medium sized traditional mechanical organizations in order to position themselves in relation to this framework and consider to adopt a plan of actions and evolve towards mechatronics?This survey focuses on 5 noteworthy case studies that already have acquired a good mechatronic maturity level. The study enabled us to establish a relationship between the mechatronicity level of a product and the processes these organizations have put into practice in order to design and manufacture mechatronic products. More markedly yet, we have come to the conclusion that mechatronic products can be seen as levers to the creation of service offerings and thus push these companies to change their business models. We therefore propose that the latter should be managed by modern tools like the Business Motivation Model, for example. As the matter of fact, the BMM is a flexible and therefore suitable management tool for these mechatronic service oriented production systems (PSS). A service oriented architecture (SOA) of an organization then has to be planned, and we find that the business motivation model (BMM) is suitable for bridging these organizational architecture challenges.Specifically, we propose two practical and simple tools that can be seen as internal audit tools for any organization wanting to assess its competencies in mechatronics prior to plan future developments: on the one hand we elaborate metrics to assess the mechatronicity level of a product and a model assessing the mechatronic maturity level of the organization on the other.More broadly, this survey enables us to see mechatronics as a sequential evolution starting with a mechanical mono-domain product without communication abilities which develops to a multi domain digitized product communicating with other systems. The intermediate evolution phases are analogue basic electronic instrumentation, followed by digital electronics and embedded computing. The latter represents the real transition to mechatronics and drives the whole organization towards the digitization of its products and also its means of production and thus towards Industrie 4.0. This can also be seen as a proposal of a taxonomy of mechatronics
Tomaselli, Ludovic. "Amélioration de la consommation et de la dépollution des moteurs thermiques automobiles par optimisation des systèmes de refroidissement (application aux moteurs Diesel)." Poitiers, 2000. http://www.theses.fr/2000POIT2340.
Full textDubois, Benoit. "Méthodologie de conception de magnétomètre dans une approche mécatronique." Phd thesis, Université de Strasbourg, 2009. http://tel.archives-ouvertes.fr/tel-00408674.
Full textDesvaux, Melaine. "Optimisation mécatronique de multiplicateurs magnétiques pour le grand éolien." Thesis, Rennes, École normale supérieure, 2018. http://www.theses.fr/2018ENSR0014/document.
Full textNon communiqué
Benkaci, Mourad. "Surveillance des systèmes mécatronique d'automobile par des méthodes d'apprentissage." Toulouse 3, 2011. https://tel.archives-ouvertes.fr/tel-00647456.
Full textMechatronic systems monitoring, especially those built on today's vehicles, is increasingly complicated. The interconnections of these systems for increased performance and comfort of vehicles increases the complexity of information needed for decision-making in real time. This PhD thesis is devoted to the problem of detection and isolation (FDI Fault Detection & Isolation) of faults in automotive systems using algorithms based on research and evaluation of information by mono-criterion approaches. Relevant variables for rapid detection of faults are selected in an automatic manner by using two different approaches: I. The first is to introduce the notion of conflict between all the measurable variables of mechatronic system and to analyze these variables using their projections in hyper-rectangles spaces classification. II. The second approach is to use Kolmogorov complexity as a tool for classification of fault signatures. The estimate of the Kolmogorov complexity by compression algorithms, without loss of information, allows defining a dictionary of faults and giving a score of criticality with respect to the healthy functioning of the vehicle. The two proposed approaches have been successfully applied to many types of automotive data in the ANR-DIAP project
Dubois, Benoît. "Méthodologie de conception de magnétomètre dans une approche mécatronique." Strasbourg, 2009. http://www.theses.fr/2009STRA6064.
Full textThe engineering of mechatronic systems requires the simultaneous and multidisciplinary design of the mechanical, electronic and software sub-systems. In this context, this thesis work is part within the framework on ``Conception Intégrée en Mécatronique Sûre de Fonctionnement''. The goal was to develop methods that allow and facilitate collaboration between people from different specialties in order to achieve a safe system for operation without setting a priori constraints on a system in particular. In the first section, we present a hot carrier induced MOSFET degradation model. We then describe the aging study of basic analog structures. We propose a design methodology to maximize the life of a circuit, and therefore micro-sensors, using the aging model. In the second part, taking as example a Miller OTA, we show how our method allows to design safe complex structures. To finish the manuscript we propose an original application of our design method: an analog aging sensor for CMOS integrated circuit
Zedin, Thomas. "De la mécatronique de conception vers la mécatronique de construction : à la recherche d’une genèse pour la conception de la robotique sur chantier." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAC003.
Full textThis research is developed in the field of architecture. It aims at studying the development of mechatronics in construction design and especially building sites. Mechatronics is a design process combining mechanics, electronics and informatics. It can be found in a lot of manufactured products, and is used in industry for production with the growth of robotics. The research in “Construction mechatronics” began in the early 70’s in japan. Later, the rise of rapid prototyping created new practices in architecture for “Design mechatronics”. It appeared in the early 2000’s thanks to the spread of CNC machining and microcontrollers in academic environments.These new practices and research fields are hardly observable in the construction industry. Mechatronics seems to be missing on building sites and not accessible. Also, Design mechatronics is not present in every design and technical departments. Thus, we focused on producing knowledges about the design processes attached to the integration of mechatronics in construction field. We did it by confronting this integration with a regular construction company activities.This led us to a series of experiments by case study in action-research. These cases are focussing on the concepts production for construction robotics. It involved multiple actors charged to the organisation and design of building sites. We looked at their reasoning to match mechatronics with their crafts and occupations.These studies had to be bound to scientific foundations. Architecture is not a scientific discipline, but can be related to Design sciences such as Architecturology developed in the MAACC laboratory. Design sciences helped us to analyse these observations and constitute design methods to design construction mechatronics systems
Asgari, Bagher. "Contribution à la prise en compte du comportement multi-technologique des robots industriels dans le contexte d'une architecture de commande décentralisée." Aix-Marseille 3, 1998. http://www.theses.fr/1998AIX30080.
Full textKefsi, Laid. "Contribution à l'étude de la commande prédictive généralisée à temps continu des systèmes mécatronique." Valenciennes, 2007. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/ad0e63c9-de8d-4cca-9d8e-63fd5f889583.
Full textThe work presented in this memory is mainly devoted to the study of the continuous time generalize predictive control (CGPC) applied to mecatronic systems. It consists to a contribution to the analysis and the synthesis of a control law based on the minimization of a quadratic criterion. This control strategy is a well adapted control strategy, able to control a broad class of systems. Indeed, it applies as well to the unstable systems, as to the non minimum phase systems. An exact knowledge of the delay is not essential. Another scheme of predictive control was proposed, it consists in using the internal model control (IMC) based on CGPC minimization criterion. This method offers a good tracking trajectory to the CGPC, and gives the robustness benefits which the control structure offers. CGPC and IMC/CGPC robustness analysis made it possible to lay down some rules concerning the choice of adjustments parameters. Moreover, we examined the means of increasing the robust stability of the two algorithms, by using the concept of the LTR for the CGPC with observer, and by introducing a filter of robustness into the IMC/CGPC structure. In order to extend the predictive control to the nonlinear systems, a continuous time version of the Local Model Networks approach, based on the state space representation was proposed. Thus, a nonlinear control structure based on a balanced combination of CGPC regulators was established. Finally, another approach based on the combination between the predictive control and the sliding mode control CGPC/CMG is developed. This method showed its effectiveness and its performances in terms of static error almost null, and its regulation fastness in the presence of external disturbances. An experimental validation of the various algorithms was made on a three tanks system. The advantages as well as the limitations of the suggested control law were underlined
Ganet-Mattei, Florent. "Fabrication additive de matériaux électroactifs pour applications à la mécatronique." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI011/document.
Full textAdditive Manufacturing (FA) is a manufacturing process that began to develop in the 1980s and is now mature enough to be used in a cost-effective and functional way by manufacturers. Additive manufacturing is defined as the process of shaping a part by adding material, as opposed to traditional shaping by material removal (machining). This new technology is a real revolution and enables us to meet new unprecedented technological challenges. Whether on a material axis or more widely as part of the plant of the future, additive manufacturing is a real growth driver, but many research work is yet to be conducted to perfect this new technology. It is around this issue that the work of theses focused with a focus on the integration of electroactive materials for the realization of mechatronics function taking advantage of Additive Manufacturing processes. Research shows that additive manufacturing of electroactive materials will be increasingly used for the realization of hybrid mechatronic functions that will combine both the mechanical structure, silicon integrated circuits, conductive tracks and printed coupled materials, integrating as well as features, such as sensors, displays or power sources. The work shows the potential application around the health control of composite structures, but also the instrument shape control for surgery. To arrive at the development of these devices, the following points have been developed around electroactive materials and their integration and optimization rules
Masri, Christopher. "Optimisation d’une manchette élastomère silicone pour sphincter artificiel urinaire mécatronique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI110.
Full textUroMems aims at developing a novel treatment solution for severe urinary incontinence by replacing the manual pump mechanism, which is currently considered as the gold standard and which is implanted in patients throughout the world, by a mechatronic device. An occlusive cuff that mimics the natural human sphincter is linked to the device in order to ensure continence and allow micturition.This work focuses on understanding and improving the artificial sphincter. The first part of this study aims at modeling of the occlusive cuff, characterizing the mechanical behavior of all of its components and establishing a corresponding finite element model. A bench test using digital image correlation is also presented in order to validate the behavior of the numerical model for a simple test. In the second part the implantation of the occlusive and its inflation are simulated and the model is validated by comparing its results to the data measured experimentally. The third part aims at validating the interaction between the occlusive cuff and an extraneous body in the numerical simulation. To this end the in vivo experimental behavior of the occlusive cuff is observed. The variability measured among the different subjects motivated the use of a phantom material (a Polyvinyl alcohol hydrogel) of controlled mechanical properties. A thorough mechanical characterization of the hydrogel is also presented in this part as well as a test bench used for the validation of the numerical model. The fourth part proposes a histo-morphological analysis of the male urethra and its mechanical characterization. The data obtained were then integrated to the finite element model. The last part of this work is dedicated to exploiting the finite element tool to propose design improvement of the occlusive cuff
Arioui, Hichem. "Conception, Mécatronique et Contrôle des Plateformes dédiées aux Applications Centrées Humain." Habilitation à diriger des recherches, Université d'Evry-Val d'Essonne, 2010. http://tel.archives-ouvertes.fr/tel-00621269.
Full textLagnier, Julien. "Contribution à l'analyse structurelle des systèmes singuliers pour la conception mécatronique." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI045/document.
Full textThe context of this PhD thesis is the modeling and design of mechatronic systems. The study is positioned in the early design stage of the conception cycle (V-Cycle), where the main efforts have to be produced in terms of methodology, to enhance the quality and the functionality of the products, and based on virtual prototyping (modeling and simulation). One of the possible methodology is to reformulate the design problem as an inverse problem, in order to directly use the design specification of the product, usually given in terms of the system outputs, and then solve the design problem. In this context, the Ampere laboratory of INSA Lyon has developed a conception and design methodology, based on inverse approach and using the bond graph formalism, to propose a step-by-step method based on dynamic and energetic criteria, with a structural analysis phase that allows hierarchical analysis steps, depending on the structural physical layout of the model (topological, phenomenological, parameter set). The aim of the present works is to contribute to the development of this methodology, by enhancing it to the class of descriptor systems. This choice is led by the aim to apply the methodology in the context of chassis design and vehicle dynamics, where, among other, multi-body models represented as a differential-algebraic equation (DAE) system could occur. The contributions are proposed at the level of the topology of the model, as well as at the level of the phenomenological / behavioral aspects. A preliminary step is to enhance the existing algebraic framework to support graphical extension (in term of digraph and bond graph). The overall methodological extensions allow, firstly, a generalization of the approach to the class of descriptor systems, and, secondly, to reach a standardization of the procedures, previously dedicated to direct or inverse models, so as no mandatory differences between those models have to be done anymore
Coudert, Nathalie. "Contribution à la commande d'une boîte de vitesses automatique : approche mécatronique." Lille 1, 1995. http://www.theses.fr/1995LIL10053.
Full textForget, Florent. "Modélisation et contrôle d'actionneurs pour la robotique humanoïde." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30342.
Full textHumanoid robotics actuation and control is complex as this field has specific needs. This involves the design of advanced mechatronic constructions. In this thesis, we focused on the humanoid robots actuation and paid particular attention to systems with good compliance capabilities. Compliance refers to the ability of the system to adapt to its environment by adopting a flexible behaviour. This feature is particularly sought after for human-robot interactions and to make contacts between the robot and its environment smoother. We studied two systems in detail : the first is a system based on Mckibben's artificial pneumatic muscles and the second is an electric cable driven actuator with flexibility. We have developed and implemented a control architecture for the control of both systems. The interest of this architecture lies in its generic nature and in its use within a model predictive control scheme. We then studied the thermal behaviour of an actuator in order to exploit the full potential of this system while ensuring its integrity. Finally, we have carried out developments to improve the joint torque control of the humanoid robot Talos
Khettab, Malika. "Etude de l'influence du résinage au niveau de l'IML (Insulated Metal Leadframe), dans le packaging de module commutateur de courant mécatronique." Versailles-St Quentin en Yvelines, 2014. http://www.theses.fr/2014VERS0043.
Full textThe purpose of this thesis is to study the effect of resins at the IML module (technology brought up by Valeo car supplier company), in the packaging of a mechatronic module with respect to its reliability under thermal cycling stress. This work consists of two complementary parts: the first part allows one to perform a macroscopic study in terms of volume through simulation of thermal effects in the module by using COMSOL software based on Finite Elements Method while the second part is devoted to the experimental study at interfaces at the microscopic level by ellipsometry technique. The simulation performed to determine the effect of the resin on the transport of heat in the module allows one to show that the presence of the polymer in the packaging tend to limit lateral temperature gradient which quench the mechanical stress of the chip on its support and the interconnexion material. The experimental study was performed in two steps: the characterization by ATG, ATR/FTIR and Brillouin scattering techniques, on the one hand, of the polymer alone and on the other hand, when it is in contact of different substrates (Si, CuNi, Al) characteristic of principal interfaces encountered in the module. Resistance to temperature rise has been quantified and a classification established by ATG technique. The presence of CO2 in the polymers has been evidenced by ATR and ellipsometry in the NIR and MIR. Particularly, it has been observed that a soft thermal stress coupled to a humid environment tend to increase the CO2 content in the polymers with the result that an increase in the volume of the polymer is expected, which may impact on its permeability as well as on its elastic properties as observed by the way by Brillouin scattering. A substrate-polymer interaction has been evidenced by ellipsometry on silicium and an interpreted in terms of siloxane bonding. Cu-Ni and Al substrates dont modify the polymers but in a humid atmosphere, on may note that temperature cycling results in modification of the optical properties of the polymers which are in contact with both substrates from the variation of their optical constants which is more important for Al than for Cu-Ni
Thouviot, Sylvain. "Optimisation multi-critères d'un système mécatronique en intégrant les problèmes vibro-acoustiques." Phd thesis, Ecole Centrale Paris, 2013. http://tel.archives-ouvertes.fr/tel-00879854.
Full textDrouin, 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.
Full textLetellier, Clément. "Diagnostic robuste des systèmes incertains. Application à un système mécatronique pour l'automobile." Phd thesis, Université de Rouen, 2012. http://tel.archives-ouvertes.fr/tel-00747981.
Full textSteyn, Nico. "Virtual reality platform model and design in an enabled environment." Versailles-St Quentin en Yvelines, 2013. http://www.theses.fr/2013VERS0066.
Full textThis research concerns the development of a virtual reality platform for a differential drive mobility aid in manual or electric wheelchairs with multipurpose usage in an enabled environment. The platform for the mobility aid is stationary, with pitch and roll actuated actions for possible different uses such as: manual or electric wheelchair driving simulations, wheelchair training, assistive technology research, architectural route planning and accessibility evaluation. By means of the platform, the differential drive mobility aid, is greatly able to assist inexperienced users in this method of mobility training. The use of the developed mobility simulation platform is additionally of benefit to disabled wheeled mobility users in need of occupational therapist training and evaluation. The investigation into the mobility factor will moreover be of further benefit in the area of the ergonomic designs of architectural structures for wheelchair-bound users. The platform is a mechatronic design with both mechanical and electrical properties. The mechanical components consist of drums, driven by the wheelchair and its user when placed on the platform, where acquired data of the rotation of the wheelchair’s wheels are of importance. The platform is connected to actuators for simulating angular movements of the wheelchair approaching an inclining or declining given path. The simulator necessarily maps intended motion by an electric wheelchair user into the virtual world, taking into consideration influences such as collisions, gradient changes and different surface properties. Audio, motion and force feedback produced on the virtual mobility simulator give the users a sensory stimulus input with regard to sound, movement and balance. Ultimately, the design forms a unity, comprising a mechanical platform, the wheelchair and the enabled user, with the relevant kinematics and dynamics controlled in a simulated virtual reality environment
Demri, Amel. "Contribution à l'évaluation de la fiabilité d'un système mécatronique par modélisation fonctionnelle et dysfonctionnelle." Phd thesis, Université d'Angers, 2009. http://tel.archives-ouvertes.fr/tel-00467277.
Full textBüssing, Tobias. "Conception d'un simulateur mécatronique à propriétés variables pour l'apprentissage du geste en kinésithérapie respiratoire." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENA015.
Full textIn France, 460000 infants between one month and two years are affected by the acute bronchiolitis each winter. This viral infection which leads to an inflammation of the respiratory tract is generally treated during a respiratory physiotherapy(RP) session. In order to improve the technical learning of the paediatric RP, a simulator which represents a six month old infant with an average type of bronchiolitis was developed in the laboratory SYMME. This first simulator allows the physiotherapist students to learn the basic gestures of the RP in a didactic and safe environment. This research work follows the frame work of this study and should allow an improvement of the training by proposing various didactic situations. As a first step, a system that allows reproducing the breathing movement of an infant on the simulator was developed. Then we worked on the design of a mechanism that allows obtaining a variable mechanical behaviour of the thorax in order to enable the student to practice on different clinical cases. For the realisation of such a device, we focused on systems which are conventionally used to dissipate energy by modifying the stiffness and/or the damping of the structure. Two semi-active devices based on the usage of a cylinder/piston system were examined. They differ in the way the pressure difference between the two chambers of the cylinder is generated : first, by changing the flow geometry and second, by a modification of the fluid flow characteristics of a magnetorheological fluid. The first solution was partially validated by a physiotherapist but was not completly satisfying. The second solution was tested on a specific test bench and seems to be a promising way to realise a simulator with variable properties
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.
Full textThis 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.
Bricogne-Cuignières, Matthieu. "Méthode agile pour la conception collaborative multidisciplinaire de systèmes intégrés : application à la mécatronique." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2176/document.
Full textThis work focuses on the multidisciplinary and collaborative design of integrated systems. These systems are subject to an ever increasing number of requirements, leading to the need for more comprehensive functional and spatial integration. These different types of product integration are also at the origin of organizational complexity. This complexity arises not only from the great number of actors performing various engineering activities but also from the diversity of disciplines involved (designated in this manuscript as “multidisciplinary integration”). To encourage this multidisciplinary integration, “preliminary design” and “detailed design” have been identified as the most significant steps, especially since they are characterized by the collaboration of multiple experts handling a large number of product definition’ technical data. Systems that have been designed thanks to multidisciplinary approaches are generally poorly integrated. This is partially due to the compartmentalization of disciplines, as well as to the “project-planned” method, where project planning is predominant and information is mainly spread out “top-down”. To ensure better cooperation between the various disciplines, to enable decision making based on operational indicators and to analyze and understand the multidisciplinary integration processes, a method inspired by the founding principles of agile methods (the agile manifesto) is proposed for the collaborative design of integrated systems. This work is based on three complementary concepts. The first is, the Collaborative Actions Framework, an operational framework for collaboration around actions. One objective of this framework is to improve the collaboration among designers, whatever their disciplinary origin. It also ensures traceability between decision making and corrections/changes made to technical data. This traceability is made possible by the useof the second concept, called Workspace. Even if this term is already well known, we propose a new definition/usage to transform it into collaboration spaces. This concept offers great possibilities, including the continuous delivering/sharing of experts’ contributions, multidisciplinary integration and change validation. The exchange of technical data between workspaces, or simultaneous work on the same data, relies on the ability to manage several parallel versions of the same item into a single datamanagement system. These opportunities are offered by the third concept, called Branch & Merge. Finally, these three concepts are illustrated through a scenario and a computer prototype. A mechatronic product, “the synergistic combination of mechanical and electrical engineering, computer science, and information technology” (Harashima et al., 1996), is used to illustrate the opportunities offered by our work in terms of multidisciplinary integration during collaborative design
Menyhardt, Karoly. "Sistem inteligent de protezare pentru membrul superior." Artois, 2008. http://www.theses.fr/2008ARTO0207.
Full textThe thesis presented here, represents a first step in the development of an intelligent prosthetic system for the human upper limb, with low costs, at Timisoara. By determining the kinematic parameters of the prosthesis’ simplified model it is possible to predict its behavior and movement possibilities. Trough the representation of the active workspace and its projections in different planes, it is possible to observe, modify and optimize the laws of motion, respectively the trajectories of different kinematical joints controlled by the prosthesis’ microcontrollers. Starting from the study of the functional anatomy of the upper limb and the current state of development of prostheses worldwide, a prototype level intelligent prosthesis was designed and engineered for the upper limb. The developed prosthesis is functional and at a low cost. The mechanical components of the prosthesis’ structure consist of the shoulder, elbow and hand joints, bars and other linkage elements. The actuating system of the prosthesis is made with stepper motors and reducers. The sensorial system is formed by the control elements of the prosthesis and micro-switches. To demonstrate the functionality of the prosthesis, it was put under experimental tests to analyze the movements with systems based on video acquisition, ultrasound and vibration measurements during different tasks. The results of these experimental studies validate the prototype built by the author
Raka, Sid-Ahmed. "Méthodes et outils ensemblistes pour le pré-dimensionnement de systèmes mécatroniques." Thesis, Cergy-Pontoise, 2011. http://www.theses.fr/2011CERG0516.
Full textThe pre-sizing takes place upstream to the process of designing a system: from a set of requirements, it consists in determining a set of possible technical solutions in an often very large search space which is structured by the uncertain and partial knowledge available about the future system and its environment. Long before making the final choice and the final sizing of the system components, the designers have to use specifications, models of the main phenomena, and experience feedbacks to formalize some constraints, make simplifying assumptions, consider various architectures and make choices based on imprecise data (i.e. intervals, finite sets of possible values, etc…). The choices made during the pre-sizing process often involving strong commitments for the further developments, it is very important to early detect potential inconsistencies and to verify the satisfaction of the requirements in an uncertain context. In this work, a methodology based on the exchange of set-membership models between principals and suppliers is proposed for the verification of requirements. This methodology is fully consistent with a design paradigm based on the reduction of uncertainties. After a work dedicated to the modeling of mechatronic systems, a special attention is paid to dealing with deterministic uncertainties affecting continuous values: some techniques based on interval analysis such as constraint satisfaction (interval CSP), reachability computations for knowledge dynamic models or identification of set-membership behavioral models are used and developed, so providing a set of tools to implement the proposed methodology and contribute to reach the goal of a verification with a full and guaranteed coverage
Zerelli, Manel. "Systèmes mécatroniques à paramètres variables : analyse du comportement et approche du tolérancement." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2014. http://www.theses.fr/2014ECAP0032/document.
Full textIn this thesis we proposed a method for the study of parametric variation for continuous and hybrid systems and an approach for mechatronics tolerancing. We first studied the different existing approaches to take into account the variation of parameters. For continuous systems with variable parameters we chose the method of differential inclusions. We took the Raczynski algorithm and we have developed an optimization algorithm which is based on the steepest descent method with an extension to obtain global optimum. For hybrid systems, containing continuous evolutions and discrete jumps, and have parametric variations, we have chosen the formalism of impulse differential inclusion as a modeling tool. We took this formalism and identified its components on a mechatronic system. We have developed algorithms for solving impulse differential inclusions for several variable parameters. To view the results, the developed algorithms were implemented in Mathematica. We ended this part by a comparison between our approach and others like those around hybrid automata invariant polyhedron, polygonal differential inclusions and practical algorithm for solving differential inclusion. We showed then some advantages of our approach. In the last part, we organized the different tools used and results obtained to define and refine our approach to tolerancing. We defined the area of the desired operation, the various scenarios that may present, and its intersection with reachable area. We presented a metric tool based on topological Hausdorff distance for the calculation of distances between the different sets. With these elements, we proposed an iterative approach to tolerancing in the state space
Mahieddine, Mahmoud Sofiane. "Contribution à la commande par mode de glissement des systèmes mécatroniques." Valenciennes, 2007. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/91f64c00-0f58-4cb5-8233-c90baa1a62ae.
Full textThis thesis discusses about sliding mode control of mécatronics systems, in particular linear and nonlinear, uncertain and disturbed systems. This controller gives the advantages of robustness to disturbance and parametric uncertainties, reduced order and simplicity of implementation. However, chattering (actuator high frequency vibration) is its major disadvantage. The main goal of this work is to find a solution to the chattering problem and rejected mismatched uncertainties. Firstly, we propose a new method to design a sliding surface for linear systems with mismatched uncertainties. The proposed sliding surface provides a new stability criterion of the reduced-order system origin with respect to mismatched uncertainties. Then, we proposed a new strategy of sliding mode control using the transfer function approach, this study relates to the second order linear systems. Secondly, in case of nonlinear systems, we have find a solution of chattering problem using variable structure control in the boundary layer, the stability and the robustness of the closed-loop system are proven analytically using the Lyapunov synthesis approach. In the presence of output noises, a robust differentiator via sliding mode transfer function is studied. The application of this method to Hydraulic system gives encouraging results which are presented on different case. Finally, we designed a sliding mode observer for system with unknown input in order to recover the information
GROULT, BARTHELEMY. "Modelisation des sous structures modales dans le logiciel d'analyse par elements finis et de simulation mecatronique plexus-r." Paris, CNAM, 1997. http://www.theses.fr/1997CNAM0292.
Full textGouaillier, David. "Conception mécanique et commande de l'appareil locomoteur d'un robot humanoïde." Versailles-St Quentin en Yvelines, 2009. http://www.theses.fr/2009VERS0037.
Full textThis 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
Charlot, Jean-François. "Logistique de la modélisation en conception de systèmes multi-technologiques." Bordeaux 1, 2005. http://www.theses.fr/2005BOR13118.
Full textAssaad, Bassel. "Contribution à la prise en compte des aspects thermiques des machines électriques dans un environnement mécatronique." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2251/document.
Full textElectric machines play an important role in power conversion in several applications and fields. With the increasing demand for designing lighter and more efficient machines and optimizing the existing structures, thermal analysis becomes a necessary; in fact, the performance of electric machines islimited by the allowable temperatures in many critical components like windings, permanent magnetsand bearings. Two main approaches can be employed in order to study the machine thermal behavior : the lumped parameter thermal network (LPTN) or numerical models. Considering low-computationtime-consuming and the possibility to be integrated in a mechatronics system design, the LPTN method is considered in our study. The latter is mainly applied on electric machine integrated in a complex mechatronics environment. The thermal network is presented along with the definition of the principal elements constituting this network. In fact, an accurate and reliable network strongly depends on many critical parameters like heat transfer coefficients, interface gaps, impregnation goodness, among others. For this reason, different sensitivity analysis techniques are carried out in order to, first, identify the significance of uncertainties in the evaluation of these parameters on machine temperatures and second, to reduce the thermal network. Next, we propose two optimization algorithm-based identification methodologies in order to calibrate results of the thermal network with measured temperatures obtained from a test-bench of a permanent magnet based integrated starter-generator machine. The calibrated model is then integrated in a mechatronics system consisting of an electric model of the electric machine, along with its control strategy and the power converter. This final study allows us to evaluate the impact of the machine temperature rise on the mechatronic system
Ben, messaoud Yethreb. "Modélisation analytique du couplage multi-physique magnétique-thermique dans la phase de préconception d'un système mécatronique." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC079/document.
Full textDuring the design phase, the different engineering teams make multiple FE simulations dealing with various physical behaviours in order to ensure both verification and validation.However, the unsatisfactory results lead to late changes and hence to long iterations and increasing costs.In order to tackle this problem, it is essential to take into account the geometrical and multi-physical constraints in the complex system architecture since the conceptual design phase.In fact, a process called SAMOS is developed aiming at selecting the most adequate 3D multi-physical architecture while ensuring an efficient collaboration between the engineering teams. Moreover, this framework is based on two SysML extensions which allow the enrichment of the architecture with geometrical and multi-physical data.Furthermore, this thesis focuses on magnetic constraints and magnetic-thermal coupling.Since this phase does not support long FE simulations, the analytical models based on simplified geometries are sufficient to provide satisfactory approximate results.In this context, different analytical models are studied and validated through FE simulations and measures for several cases such as NdFeB permanent magnets. Indeed, the temperature rise does not only decrease the remanent flux density but is able also to cause irreversible losses. In fact, once we go back to the initial temperature, the characteristics of the magnet are modified. The different factors impacting the demagnetization process are discussed.Besides, the temperature impact on brushless motors’ performances is studied since this device represents a complex mechatronic system
Ejjabraoui, Kamal. "Contribution à la conception de systèmes mécatroniques automobiles : méthodologie de pré-dimensionnement multi-niveau multi-physique de convertisseurs statiques." Paris 11, 2010. http://www.theses.fr/2010PA112381.
Full textLeclercq, Maximilien. "Conception et intégration d'un système de vision pour la gestion du confort visuel dans le bâtiment." Lyon, INSA, 2009. http://www.theses.fr/2009ISAL0081.
Full textOne aspect of the energy consumption reduction in buildings concerns the lighting. It cannot be considered without taking into account the visual comfort of people according to the task done, in particular in the tertiary sector. The study of the human perception leads to the conclusion that the natural lighting is the solution that allows the best comfort. However the management of the daylighting is difficult and the evaluation of the comfort remains subjective. This PhD work has led to the development of innovative equipments that allow firstly to measure several comfort criteria and thus to extract a comfort index, and secondly to implement the control of the visual ambiance while minimizing the energy consumption. The implemented comfort sensor relies on the extraction of information from images taken by a fish-eye camera in order to measure global (mean luminance, and barycentre of the luminance), and local criteria (dazzling points, and high contrast zones). These criteria are aggregated using fuzzy logic in order to determine a comfort index; this approach taking naturally into account the subjectivity among people of the concept of comfort. The management of the visual comfort relies on the control of two types of actuators: Venietian blinds and artificial lights. The implemented control is based on a structure with imbricate loops that allows the control of the different levels of information in this system (physical, optical, comfort criteria and index). It uses a set of models resulting from identification procedures and it is defined in order to reach a good robustness in regards with the model uncertainties and to reject perturbations. These implementations have been tested and validated experimentally within a room of openspace area type
Sargsyan, Suren. "Conception et étude de systèmes mécatroniques basés sur la robotique de manipulation permettant de récupérer la motricité d'une personne." Ecole centrale de Nantes, 2013. http://www.theses.fr/2013ECDN0011.
Full textThe aim of the thesis is the design and analysis of portable systems for rehabilitation of motor functions of humans, based on the manipulation mechanisms with improved weight, calibration and energy consumption characteristics. The work deals with the development of new electromechanical rehabilitation devices containing electroactive polymer-metal-composite elements intended for rehabilitation and maintenance of human motor functions, and modelling, analysis and design of their biomechatronic systems. A new method for an accurate balancing of biomechanical system using springs, counterweights and auxiliary links is proposed, providing also a load adjustment system. It is applicable with spring with any characteristic and allows not only the reduction of the oscillations of the moment of the gravitational forces of the counterweight, but also the control of its law of variation. The dynamic modelling, the development of an optimal design and the control methodology of human extremity exoskeleton with electromechanical actuators are performed, using Lagrange-Maxwell equations. The numerical examples for determination of laws of variation of electrical control voltages and powers in the exoskeleton’s actuators showed the effectiveness of the proposed methods. The proposed method of optimal dynamic design and the computational algorithms were successfully tested on an illustrative example of optimal control problem. The variation of the generalized coordinates, the electrical control voltages and the powers of actuators due to minimum power inputs criterions were determined. Appropriate actuators were selected. As a result, the power inputs have been significantly reduced. The methodology of design for the rehabilitation systems with application of modern electroactive conducting polymer-metal composite actuators is proposed and tested
Fournier, Laurent. "Contribution à la modélisation d'un véhicule automobile et de son environnement : Algorithmes d'apprentissage pour la commande électronique de boîte de vitesse automatique." Limoges, 1996. http://www.theses.fr/1996LIMO0061.
Full textNaud, Olivier. "Modélisation hybride pour la supervision de systèmes mécatroniques : application à la stabilité en pente de machines mobiles." Toulouse, INSA, 2003. http://www.theses.fr/2003ISAT0003.
Full textWe present a design approach for supervision-oriented hybrid models of mechatronic devices. We chose to express the qualitative states taken by such systems in the guise of a finite automaton. We proposed a method to build the automaton from an essentially continuous model. This method relies on our so-called half-causal graph which represents the algebraic and differential complexity of the continuous model. This diagram uses the causal semantics of the bond-graph, which is based on the effort-flow duality. It is annotated with intervals on the variables. Semantic values are attached to these intervals, which we call modalities. We distinguish, in particular, structural modalities, which correspond to limit conditions or changes in the continuous model, and functionnal modalities, which provide the qualitative information on the usage and monitoring. So as to validate this approach, we applied it to the modeling of the bogies of a forest machine. The goal was to prevent the machine from overturning on slopes. Simulations of the whole machine dynamics proved that the discrete model we obtained was very representative of the changes of the instability risk
Khalfaoui, Sarhane. "Méthode de recherche des scénarios redoutés pour l'évaluation de la sûreté de fonctionnement des systèmes mécatroniques du monde automobile." Toulouse, INPT, 2003. http://www.theses.fr/2003INPT034H.
Full textJardin, Audrey. "Contribution à une méthodologie de dimmensionnement des systèmes mécatroniques : analyse structurelle et couplage à l'optimisation dynamique." Lyon, INSA, 2010. http://theses.insa-lyon.fr/publication/2010ISAL0003/these.pdf.
Full textThis thesis comes within the scope of mechatronic systems design and deals especially with the problem of their sizing. To that aim, it focuses on methods allowing the selection of the components constituting their actuating chains with respect to given requirements. Since current competitive rules require a frequent product renewal in spite of ever increasing product complexity, the adopted approaches for handling this kind of problem have to be less expensive in financial terms as well as in the duration of the design phase. So as to decrease the number of iterations during the design process, one possible is to reformulate the problem as an inverse problem where the unknowns of the sizing problem are directly determined from the requirements expressed on the system outputs. With that in mind, the laboratory Ampere suggests a sizing methodology based on the use of inverse bond graph models. The objective of this thesis is to contribute to the development of this methodology in its structural phase on one hand (i. E. Thes phase allowing to check before any numerical simulation if the inverse problem is well-posed) and in its sizing phase on the other hand (i. E. The phase where the model inversion is applied and exploited)
Nehaoua, Lamri. "Conception et réalisation d'une plateforme mécatronique dédiée à la simulation de conduite des véhicules deux-roues motorisés." Phd thesis, Université d'Evry-Val d'Essonne, 2008. http://tel.archives-ouvertes.fr/tel-00419371.
Full textNehaoua, Lamri. "Conception et réalisation d’une plateforme mécatronique dédiée à la simulation de conduite des véhicules deux-roues motorisés." Thesis, Evry-Val d'Essonne, 2008. http://www.theses.fr/2008EVRY0045/document.
Full textThis thesis deals with the design and realization of a dynamic mechanical platform intended to the motorcycle riding simulation. This dissertation is organized into several principal sections. First, a literature review is conducted to identify the driving simulation problematic in a general way by focusing on the simulator design. In this part, it was aware of the various mechanical architectures used previously as well as the related limitations. The choice of the simulator‘s mechanical architecture of is driven by the needs to have an sufficient perception during simulated driving situation. Our goal is to reproduce the most relevant inertial effects (acceleration, torque, ..) perceived in a real world driving. The second chapter discusses an exhaustive comparison between automotive vehicles dynamics against the two-wheeled vehicles against. Existing motorcycles dynamic models are adjusted and of have been adapted to meet our needs in terms of privileged inertial cues. The third chapter presents the design aspects, mechanical realization, characterization and identification of the motorcycle simulator developed within the framework of this thesis. It constitutes the main contribution of this research works. Finally, the last two chapters are dedicated to motion cueing /control algorithms and open-loop experimentation on the simulator’s platform. These tests were performed for the characterization and validation of performance of the entire simulation loop
Turgeon, Philippe, and Philippe Turgeon. "Système mécatronique d'aide à l'alimentation pour les personnes vivant avec des troubles de mouvement aux membres supérieurs." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/36902.
Full textPlusieurs personnes vivent avec des incapacités qui affectent le contrôle du mouvement des membres supérieurs. Ces troubles de mouvement peuvent être présents sous forme de contractions involontaires, de mouvements spasmodiques ou de tremblements. Ceux-ci limitent ces personnes dans la réalisation de plusieurs tâches de la vie quotidienne. Des aides techniques peuvent alors servir à faciliter les déplacements, à compenser un manque de tonus musculaire ou à permettre la manipulation d'objets. Plus particulièrement, des aides techniques sont conçues pour les personnes vivant avec des troubles de mouvement aux membres supérieurs pour leur permettre de s'alimenter de manière autonome. Par contre, plusieurs facteurs limitent l'utilisation des aides techniques actuelles, tels que leur prix élevé ou leur complexité d'utilisation. L'objectif de ce mémoire est le développement d'une nouvelle aide à l'alimentation pour les personnes vivant avec des incoordinations motrices au niveau des membres supérieurs. L'hypothèse est que l'utilisation de l'aide à l'alimentation développée permettra d'améliorer la capacité des personnes avec des troubles de mouvement à s'alimenter de manière autonome. Cette assistance augmenterait l'implication de l'utilisateur lors des repas tout en réduisant la charge de travail des aidants ou préposés. Deux systèmes ont été développés : une version passive et une version active. La version passive consiste en un assemblage de barres qui maintiennent l'orientation de l'ustensile constante et amorti mécaniquement les mouvements brusques involontaires. Une version active a ensuite été développée, où des actionneurs remplacent les amortisseurs mécaniques, afn d'offrir une assistance plus intelligente.
Many people are living with neurological disorders such as cerebral palsy, stroke, muscular dystrophy or dystonia, that affect the control of upper limb movement. These motor disorders can be involuntary contractions, spasmodic movement or tremors. These disorders limit in the accomplishment of several tasks of daily life. Technical aids can then be used to facilitate movement, to compensate for a lack of muscle tone or to allow the manipulation of objects. In particular, assistive devices are designed for people with upper limb movement disorders to eat autonomously. Several factors limit the use of current assistive devices, such as their high price or high complexity. The aim of this thesis is the development of a new eating aid for people with upper limbs motor disorders. The hypothesis is that the use of the eating assistance developed will improve the ability of people with movement disorders to eat autonomously. This assistance would increase user involvement while reducing the workload of the caregiver. Two assistive prototypes have been developed : a passive version and an active version. The passive version consists of a bar assembly that maintains the constant orientation of the utensil and mechanically dampens involuntary movements. An active version was then developed, where actuators replace the mechanical dampers, in order to offer a more intellignent assistance.
Many people are living with neurological disorders such as cerebral palsy, stroke, muscular dystrophy or dystonia, that affect the control of upper limb movement. These motor disorders can be involuntary contractions, spasmodic movement or tremors. These disorders limit in the accomplishment of several tasks of daily life. Technical aids can then be used to facilitate movement, to compensate for a lack of muscle tone or to allow the manipulation of objects. In particular, assistive devices are designed for people with upper limb movement disorders to eat autonomously. Several factors limit the use of current assistive devices, such as their high price or high complexity. The aim of this thesis is the development of a new eating aid for people with upper limbs motor disorders. The hypothesis is that the use of the eating assistance developed will improve the ability of people with movement disorders to eat autonomously. This assistance would increase user involvement while reducing the workload of the caregiver. Two assistive prototypes have been developed : a passive version and an active version. The passive version consists of a bar assembly that maintains the constant orientation of the utensil and mechanically dampens involuntary movements. An active version was then developed, where actuators replace the mechanical dampers, in order to offer a more intellignent assistance.