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Дисертації з теми "Module mécatronique"
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.
Повний текст джерелаThe 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
Alayli, Nadim. "Frittage de pâte de nano et micro grains d'argent pour l'interconnexion dans un module de mécatronique de puissance : élaboration, caractérisation et mise en oeuvre." Versailles-St Quentin en Yvelines, 2011. http://www.theses.fr/2011VERS0057.
Повний текст джерелаIn this work, we were interested in the development of mechatronic power module adapted to new needs and standards of the automotive industry in the context of the impact of climate issues and globalization on the industrial approach. We have focused our research on new materials in the form of nano silver grains and processes developed by sintering under pressure in a process of radical innovation as opposed to incremental innovation. Three techniques of sintering powders of silver have been explored as a method to connect two metal substrates: the sintering of the powder by SPS by HIP and hot press (HP). The structural properties of the sintered material as a function of the sintering parameters (temperature, pressure and duration) were studied by SEM, EBSD, XRD and by densitometry. The results on the microstructural and morphological properties of the sintered material such as density, size and crystallographic orientation of the grains have led to the choice of the SPS as the best joining technique. The thermal and electrical conductivity of the sintered material, determined by conventional methods (Van Der Pauw and Laser Flash) or developed at UVSQ (ellipsometry), allowed us to characterize the sintered samples. The values of these transport properties were used to compare the behavior of the sintered silver to that of Pb92, 5Sn5Ag2,5 used as interconnect material in a preliminary study by modeling and simulation using the finite element method of COMSOL software. The results obtained showed that sintered silver maintains a lower temperature at the chip and is expected to better minimize the impact of those thermal effects and thus improve reliability of power mechatronics modules
Libersa, Christine. "Etude et réalisation d'un module de locomotion pour microrobot d'inspection intratubulaire : actionnement par fils AMF d'un cadre forcé en post-flambement à deux états d'équilibre stable." Poitiers, 2001. http://www.theses.fr/2001POIT2277.
Повний текст джерелаThe work presented here constitutes an outline of the studies necessary to develop a new autonomous microrobot constituted by five identical locomotion modules, to inspect industrial tubes of diameter lower than 15 mm. Our efforts focused on the study, the manufacture and the development of the locomotion module. This original-designed actuator is constituted by a postbuckled frame, presenting two states of stable equilibrium, and whose rock up from one state to the other is controlled by Shape Memory Alloy wires. A theoretical study and a static finite elements postbuckling model helped us to make sizing choices. Mechanical characterization tests carried out on a higher scale prototype have permitted to adjust educated SMA wires, controlled by Joule effect. Checking of SMA transformation by the measurement of their electric resistance is being evoked. An experimental study of the contact behavior allows us to evaluate the embarked load by the future microrobot inside a vertical tube
Skvorchevsky, Alexander Evgenievich. "The structural synthesis of elektrohydraulic mechatronic modules based on assignment problem." Thesis, Вінницькій національний технічний університет, 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32786.
Повний текст джерелаDubois, Benoit. "Méthodologie de conception de magnétomètre dans une approche mécatronique." Phd thesis, Université de Strasbourg, 2009. http://tel.archives-ouvertes.fr/tel-00408674.
Повний текст джерелаGuiatni, Mohamed. "Conception et commande d'un dispositif à rendu haptique dans le cadre de la simulation de chirurgie minimalement invasive." Phd thesis, Université d'Evry-Val d'Essonne, 2009. http://tel.archives-ouvertes.fr/tel-00876888.
Повний текст джерелаThouviot, 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.
Повний текст джерелаLagnier, Julien. "Contribution à l'analyse structurelle des systèmes singuliers pour la conception mécatronique." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI045/document.
Повний текст джерелаThe 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
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.
Повний текст джерелаMerdassi, Asma. "Outil d'aide à la modélisation moyenne de convertisseurs statiques pour la simulation de systèmes mécatroniques." Phd thesis, Grenoble INPG, 2009. http://tel.archives-ouvertes.fr/tel-00434953.
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