Literatura científica selecionada sobre o tema "Contrôle actif des structures"
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Artigos de revistas sobre o assunto "Contrôle actif des structures"
Vescovo, P., G. Bourbon, P. Le Moal e P. Minotti. "Contrôle actif de structures micro-électromécaniques". J3eA 2 (2003): 016. http://dx.doi.org/10.1051/bib-j3ea:2003616.
Texto completo da fonteVergé, Michel, Nazih Mechbal e Gérard Coffignal. "Contrôle actif des structures appliqué à une structure souple". Journal Européen des Systèmes Automatisés 37, n.º 4 (30 de abril de 2003): 501–26. http://dx.doi.org/10.3166/jesa.37.501-526.
Texto completo da fonteBERRY, A., C. GUIGOU e F. CHARETTE. "Contrôle actif du bruit par minimisation du débit volumique de structures : analyse et expériences". Le Journal de Physique IV 04, n.º C5 (maio de 1994): C5–203—C5–206. http://dx.doi.org/10.1051/jp4:1994539.
Texto completo da fontePommier, Valérie, Marc Budinger, Bernard Mouton e Sylvaine Leleu. "Contrôle actif de vibrations". J3eA 5 (2006): 010. http://dx.doi.org/10.1051/j3ea:2006040.
Texto completo da fonteTHENAIL, D., M. A. GALLAND e M. SUNYACH. "Absorption optimale par contrôle actif". Le Journal de Physique IV 04, n.º C5 (maio de 1994): C5–195—C5–198. http://dx.doi.org/10.1051/jp4:1994537.
Texto completo da fonteEl Moctar, Ahmed Ould, Hassan Peerhossaini e Thierry Marimbordes. "Contrôle actif des transferts et matériaux intelligents". Matériaux & Techniques 89 (2001): 44–47. http://dx.doi.org/10.1051/mattech/200189120044s.
Texto completo da fonteSUNYACH, M., e J. C. BÉRA. "Application du contrôle actif aux instabilités aérodynamiques". Le Journal de Physique IV 04, n.º C5 (maio de 1994): C5–927—C5–933. http://dx.doi.org/10.1051/jp4:19945203.
Texto completo da fonteHutin, P. M., I. Legrain e B. Petitjean. "Contrôle actif à l’aide de matériaux piézo-électriques". Matériaux & Techniques 83 (1995): 3–6. http://dx.doi.org/10.1051/mattech/199583120003s.
Texto completo da fontede Amorim, M. Freitas, G. Farges, P. Villon, JP Libert e L. Cevallos. "Système de contrôle actif d'humidité dans un incubateur". RBM-News 17, n.º 1 (janeiro de 1995): 36–40. http://dx.doi.org/10.1016/s0222-0776(00)88908-7.
Texto completo da fonteRobu, Bogdan, Lucie Baudouin e Christophe Prieur. "Contrôle actif des vibrations dans un système fluide/structure". Journal Européen des Systèmes Automatisés 45, n.º 7-10 (30 de dezembro de 2011): 495–511. http://dx.doi.org/10.3166/jesa.45.495-511.
Texto completo da fonteTeses / dissertações sobre o assunto "Contrôle actif des structures"
Collet, Manuel. "Contrôle actif des structures rayonnantes". Ecully, Ecole centrale de Lyon, 1996. http://www.theses.fr/1996ECDL0029.
Texto completo da fonteAmrane, Mohamed Nadir. "Contrôle passif et actif des structures planes". Ecully, Ecole centrale de Lyon, 1993. http://www.theses.fr/1993ECDL0006.
Texto completo da fonteMaruani, Jonas. "Contrôle actif des vibrations de structures élancées FGPM". Thesis, Paris 10, 2019. http://www.theses.fr/2019PA100062.
Texto completo da fonteThe aim of this thesis is to show the feasibility and the efficiency of active vibration control by structures made of functionally graded piezoelectric materials (FGPM). One bloc structure, made of FGPM, with piezoelectric properties embedded, is used to replace classical intelligent structures (a host structure equipped with piezoelectric patches) and to remove their disadvantages (stresses concentrations near interface, delamination of patches, …).This study focuses on the FGPM’s modelization, in particular on the graded behavior laws and on the development of finite elements of FGPM beams and plates. Two finite element are implemented, a beam element based on Timoshenko’s kinematics and a plate element based on an adaptive kinematics. Both elements have a numerical layers approximation for the electrical potential. These two elements are used for active vibration control simulations. In the beam case, the system is governed by a linear quadratic regulator. Otherwise, for the plate a fuzzy decentralized regulator is developed and used. Both systems beam and plate are observed thanks to a Luerberger’s observer. Static studies show the behavior of FGPM depending on the material gradation. In addition, active vibration simulations show the feasibility of control with both systems and the ability of fuzzy regulator to accommodate to sudden changes on external perturbations
Gaudiller, Luc. "Contrôle actif du comportement dynamique de structures souples supportées". Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0018.
Texto completo da fonteThis study is concerned with active digital control of the dynamic behaviour of flexible structures using a limited number of pick-ups and actuators, and with the feasibility aspect. The state of the art in the research area and some basis of the linear quadratic control theory are presented in the first chapter. The second chapter describes the steps of the design of a digital control for a single degree of freedom system, and for a distributed parameters structure. The finite element model of the structure is reduced by the modal method. Then the state form is sampled for comparing two strategies of control. The first one deals with the optimised global control of the first modes, and its influence on residual modes is analysed. The second one takes into account the uncoupled closed loop equations, and the modes which have the highest energy. The most effective controller is implemented on the processor which is in charge of the real time treatment. Then, the results of the experimental investigation carried on a simply supported flexible beam equipped with three proximity probes and one electromagnetic actuator, are in very good agreement with prediction. In the last chapter, the control is adapted to the dynamic behaviour of the rotor in bending supported by active magnetic bearings. A model is built and three kinds of control are proposed
Richelot, Julien. "Contrôle actif de structures flexibles par commande prédictive généralisée". Toulouse 3, 2006. http://www.theses.fr/2006TOU30020.
Texto completo da fonteThe aim of this study is to perform the active damping of a sloshing structure, i. E. A free-clamped beam with a tank. The first step is to model and DIMENSION the structure. Because of its complexity, a Finite Elements software has been used, to compute the electromechanical parameters from which the model is deducted. Then comes the choice of the control law, which must handle a multimode and MIMO context and must be robust, the fluid/structure interactions and the several filling configurations of the tank being seen as uncertainties around a nominal model. Generalized Predictive Control has been chosen. The use of GPC to perform the active damping of the flexible structure is interesting. The controller is efficient and compact; moreover the results show the same global behaviour for the looped system, from one filling configuration of the tank to another
Couzon, Pierre-Yves. "Contrôle actif neuro-flou de structures : application aux rotors supportés par paliers magnétiques actifs". Lyon, INSA, 2003. http://www.theses.fr/2003ISAL0076.
Texto completo da fonteThis study deals with neuro-fuzzy active control of structures. An original control method has been carried out. The neuro-fuzzy control design method lies in two steps. The first one concerns the neural identification of the dynamic behavior of the studied structure and is essential to the second one, which deals with the training of the associated controller. The main advantage of these two steps is that they are undertaken automatically. The proposed method is then applied to the control of the position and the modes of dynamic systems using magnetic actuators. The developed controllers are then implemented on a turbo pump system supported by active magnetic bearings (ALCATEL VACUUM TECHNOLOGY). They are efficient and the robustness is deeply better than the PID controllers initially implemented. The good agreement between experimental and simulation results validates both the neural identification and neuro-fuzzy control methods and the simulation model developed
Bouaziz, Hamza. "Contrôle vibratoire des structures assemblées". Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLC041/document.
Texto completo da fonteBecause of their lightness the aerospace structures are vulnerable to vibrations whose the amplitudes need to be mitigated through the active and the semi active methods. For extreme temperatures (<20oC and > 100oC), Coulomb friction might provide more structural damping than polymers. Nevertheless, there is a consensus to say that these friction-damping values are often lower than 5%. Moreover friction damping is amplitudedependent. Therefore, engineers have to tune the normal load in order to get the maximum damping for the average vibration level. The first objective of the thesis is to define a coefficient indicator of the ability of the tightening force to control the vibration levels. This coefficient is a design tool of real structures witch need controlling. The second objective is to design semi-active control laws of the clamping force for free and forced modal problem of two degrees of freedom. The ultimate goal is to design a device that can be integrated to an assembly structure for controlling the normal load in the joints and then experimentally test the effectiveness of the laws control for an academic or an industrial structure. The tightening control forces is effected with the use of piezoelectric patches
Ben, Mekki Othman. "Amortissement semi-actif des structures flexibles". Phd thesis, Ecole des Ponts ParisTech, 2006. http://pastel.archives-ouvertes.fr/pastel-00002570.
Texto completo da fonteAudrain, Pascal. "Contrôle actif de l'intensité structurale dans une poutre". Le Mans, 2001. http://cyberdoc.univ-lemans.fr/theses/2001/2001LEMA1009.pdf.
Texto completo da fonteThis thesis deals with active vibration control in one dirnensional structures. The control of flexural and extensional structural power flow is investigated. The instantaneous intensity is completely taken into account in the control algorithm, i. E. All the terms are considered in the real-time control process and, in particular, the evanescent waves are considered in this approach. The structural intensity has to be calculated from signals measured by several sensors. To do so, an intensity probe rnade of PVDF strain sensors is developped. The PVDF sensors are well suited for integration into structure in order to realize smart structures. A wave decomposition of the displacement field is used to calculate the structural power flow. A structural intensity optimal active control scheme is formulated and the numerical simulations illustrate the performance of this strategy. Experimental validation of the approach is conducted on a free-free beam and on a beam connected to a plate. A feedforward filtered-X LMS algorithm is adapted to control instantaneous intensity associated with flexural and extensional waves. This energy-based control problem involves a non-positive definite quadratic form in general. In this respect, the approach is limited to cases where the geometry is such that the intensity component will have the same sign for the control source and the primary disturbance. A finite difference scheme using PVDF strain sensors is presented and validated to measure and control structural power flow. The results show this strategy can be used to control vibration transfert in structures
Carvalho, Antoine. "Contrôle actif de l'ensemble roue-pneu pour la réduction de la transmission vibratoire solidienne". Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0073.
Texto completo da fonteThe impact of noise on humans is increasingly at the heart of health issues. In a context of intense industrial competitiveness, these issues lie at the heart of the automotive sector, a truth that also applies to the tire industry. With the rise of electric vehicles, the rolling noise previously masked by other sources of vehicle-related noise pollution poses a real problem for passenger comfort. Vehicle structure, tires, and suspension systems can attenuate some of the undesirable effects of tire-road contact at high and low frequencies. However, few technical solutions have been deployed to address the vibratory phenomena transmitted by tire-wheel assemblies operating between 200 and 500 Hz. One reason for this, these tire-wheel assemblies present complex dynamics dependent on multiple factors, such as their internal pressure, loads, and rotation speed. This thesis is structured around three axes: a deeper understanding of the dynamic behavior of tire-wheel assemblies, the development and control of a set of experimental devices, and the realization of a system and a control law to reduce the forces transmitted in the hubs. Work carried out on four different experimental setups enabled us to minimize the uncertainties associated with the evolving dynamics of the structure to be controlled, thereby allowing for a better definition of the proposed solution's field of action. Based on these results, a network of piezoelectric transducers, used as sensors and actuators, has been proposed. Various robust control solutions have been suggested, including one that combines active control and a spatial modal filter, and another that exploits a sliding-mode controller. These solutions were first studied numerically using models based on experimental data, and then tested on the full-scale structure. In parallel with this work, robustness studies of the proposed solutions were carried out. The most advanced control system was finally tested under realistic operating conditions, involving loading, contact with the tire similar to that obtained with the roadway, and rotation of the assembly. Attenuation of the two target modes was achieved for different rotation speeds
Livros sobre o assunto "Contrôle actif des structures"
Turcotte, Pierre R. Structures organisationnelles: Programme interactif de critique et d'analyse des structures organisationnelles, PICASO. Montréal, Qué: Agence d'ARC, 1988.
Encontre o texto completo da fonteNorth Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel. Symposium. Active control technology: Applications and lessons learned = Les technologies du système de contrôle actif : applications et ensignements. Neuilly sur Seine, France: AGARD, 1995.
Encontre o texto completo da fonteSociété française de psychologie. Section Psychologie du travail. Développement des hommes et des structures de travail: Quels outils, quels moyens? Paris: Entreprise moderne d'édition, 1988.
Encontre o texto completo da fonteInstitute, Welding, e International Institute of Welding, eds. Non-destructive examination of underwater welded steel structures. Cambridge: Abington Pub., 1999.
Encontre o texto completo da fonteSifeng, Liu, e Wang Yuhong 1978-, eds. Optimization of regional industrial structures and applications. Boca Raton: Auerbach Publications, 2010.
Encontre o texto completo da fonteAdeli, Hojjat. Cost optimization of structures: Fuzzy logic, genetic algorithms, and parallel computing. Chichester, England: Wiley, 2006.
Encontre o texto completo da fonteAlfred, Adler. Roi sorcier, mère sorcière: Parenté, politique et sorcellerie en Afrique noire : structures et fêlures. Paris: Félin, 2006.
Encontre o texto completo da fonteL, Taerwe, e Lambotte H, eds. Quality control of concrete structures: Proceedings of the International Symposium held by RILEM ... Ghent June 12-14, 1991. London: E & FN Spon, 1991.
Encontre o texto completo da fontenationale, Guinea Assemblée populaire, ed. Loi L/2001/029/AN: Adoptant et promulguant la loi portant principes fondamentaux de création d'organisation et de contrôle des structures des services publics. Conakry]: Assemblée Nationale, 2001.
Encontre o texto completo da fonteChunling, Du, e Xie Lihua, eds. Modeling and control of vibration in mechanical systems. Boca Raton: Taylor & Francis, 2010.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Contrôle actif des structures"
Perreaux, Nicolas. "Des structures domaniales aux territoires ecclésiaux ?" In Espaces ecclésiastiques et seigneuries laïques, 55–77. Paris: Éditions de la Sorbonne, 2021. http://dx.doi.org/10.4000/12r6b.
Texto completo da fonteEdelstein-Keshet, Leah. "Pattern Formation Inside Living Cells". In SEMA SIMAI Springer Series, 79–95. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86236-7_5.
Texto completo da fonteLEITÃO, Paulo, Stamatis KARNOUSKOS e Armando Walter COLOMBO. "Agents industriels : des holons aux systèmes industriels cyber-physiques". In Digitalisation et contrôle des systèmes industriels cyber-physiques, 139–56. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9085.ch7.
Texto completo da fonteHussein Alwash, Ban, Rawan Asaad Jaber Al-Rubaye, Mustafa Mohammad Alaaraj e Anwar Yahya Ebrahim. "Control of Cytoskeletal Dynamics in Cancer through a Combination of Cytoskeletal Components". In Biomedical Engineering. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101624.
Texto completo da fonteAktories, K. "Introduction". In Guidebook to Protein Toxins and Their Use in Cell Biology, 63–65. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198599555.003.0022.
Texto completo da fonteAvignon, Carole. "Chapitre XLI. Cadrage et contrôle du mariage". In Structures et dynamiques religieuses dans les sociétés de l’Occident latin (1179-1449), 511–22. Presses universitaires de Rennes, 2010. http://dx.doi.org/10.4000/books.pur.131418.
Texto completo da fonteKnight, David B. "L'État et les stratégies du territoire". In Mémoires et documents de géographie, 27–32. CNRS Éditions, 1991. http://dx.doi.org/10.3917/cnrs.thery.1991.01.0027.
Texto completo da fonte"Le contrôle de qualite des materiaux de reparation de structures en beton (Quality control of materials for repairing concrete structures)". In Quality Control of Concrete Structures, 341–50. CRC Press, 1991. http://dx.doi.org/10.1201/9781482288902-41.
Texto completo da fonte"Méthodologie non-destructive appliquée au contrôle de qualite des ouvrages d'art (Non-destructive methods applied to quality control of structures)". In Quality Control of Concrete Structures, 415–22. CRC Press, 1991. http://dx.doi.org/10.1201/9781482288902-49.
Texto completo da fonteKoch, Arthur L. "Recent extensions of the surface stress theory". In Microbial Growth Dynamics, 39–64. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780199631186.003.0003.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Contrôle actif des structures"
Chapuis, Bastien. "Contrôle santé intégré des structures par ondes guidées". In Contrôles et essais non destructifs : nouveaux besoins et innovations. Les Ulis, France: EDP Sciences, 2018. http://dx.doi.org/10.1051/jtsfen/2018con09.
Texto completo da fonteLequime, Michel, Jean-Jacques Guerin e Pierrick Leblay. "Contrôle optique de la stabilité dimensionnelle de structures". In International Conference on Space Optics 1997, editado por Georges Otrio. SPIE, 2018. http://dx.doi.org/10.1117/12.2326486.
Texto completo da fonteWen, Shin-Min, e Pen-hsiu Grace Chao. "Spatial Actin Structure Does Not Correlate With Nuclear Organization". In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14167.
Texto completo da fonteSharma, Puja, Brian Koons e Amrinder S. Nain. "Blebbing Dynamics, Single Cell Force Measurements, and the Influence of Cytochalasin D on Glioblastoma Multiforme Cells Using STEP Fibers". In ASME 2013 2nd Global Congress on NanoEngineering for Medicine and Biology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/nemb2013-93105.
Texto completo da fonteJoshi, Sagar D., e Lance A. Davidson. "Remote Control of Apical Epithelial Sheet Contraction by Laser Ablation or Nano-Perfusion: Acute Stimulus Triggers Rapid Remodeling of F-Actin Network in Apical Cortex". In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-204904.
Texto completo da fonteKreshchenko, N. D., e D. E. Mitkovskii. "THE PARTICIPATION OF NEUROPEPTIDE F IN THE INNERVATION OF FLATWORM MUSCULATE". In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2024. http://dx.doi.org/10.31016/978-5-6050437-8-2.2024.25.221-225.
Texto completo da fonte