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Literatura académica sobre el tema "Système linéaire périodique"
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Artículos de revistas sobre el tema "Système linéaire périodique"
Zhou, Feng. "Solutions périodiques d'un système d'équations non linéaire semi-coercif". Bulletin de la Classe des sciences 5, n.º 7 (1994): 345–54. http://dx.doi.org/10.3406/barb.1994.27564.
Texto completoLassoued, Leïla. "Solutions périodiques d'un système différentiel non linéaire du second ordre avec changement de signe". Annali di Matematica Pura ed Applicata 156, n.º 1 (diciembre de 1990): 73–111. http://dx.doi.org/10.1007/bf01766974.
Texto completoFaure, Robert. "Percussions en mécanique non linéaire: I) Cas des interactions entre systèmes. II) Théorie des percussions presque périodiques". Annali di Matematica Pura ed Applicata 140, n.º 1 (diciembre de 1985): 365–81. http://dx.doi.org/10.1007/bf01776857.
Texto completoBacaër, Nicolas, Claude Lobry y Tewfik Sari. "Über die Wahrscheinlichkeit des Aussterbens einer Population in einer langsamen periodischen Umgebung". Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées Volume 32 - 2019 - 2021 (4 de noviembre de 2020). http://dx.doi.org/10.46298/arima.6265.
Texto completoChoquet-Geniet, Annie y Sadouanouan MALO. "Scheduling an aperiodic flow within a real-time system using Fairness properties". Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées Volume 18, 2014 (7 de noviembre de 2014). http://dx.doi.org/10.46298/arima.1980.
Texto completoTesis sobre el tema "Système linéaire périodique"
El, Mrabet Yamina. "Analyse structurelle des systèmes linéaires périodiques : approches algébriques". Cachan, Ecole normale supérieure, 1997. http://www.theses.fr/1997DENS0033.
Texto completoLahaye, Sébastien. "Contribution à l'étude des systèmes linéaires non stationnaires dans l'algèbre des dioïdes". Angers, 2000. http://www.theses.fr/2000ANGE0028.
Texto completoDiscrete event dynamic systems involving synchronization nd saturation phenomena can be modeled by linear equations in some dioids. Starting from this property a so-called linear system theory in dioids, which presents great analogies of form with the classical linear system theory, has been developed. This report is devoted to the study of non stationary linear systems in dioids. As in conventional system theory, one can claim that the non-stationary nature of a system is induced by possible variations of its state-space realization parameters. We tackle the problems of representation for these systems (input-output representation and state-space representation). A control problem, more precisely the output tracking problem, is solved. We also study a subclass of non stationary linear systems as a guideline, an analyses proper to linear periodic systems in dioids is proposed. In addition, two Petri nets subclasses have been defined in order to characterize ((max, +) and (min, +) non stationary linear systems. The proposed results find some applications in production control, notably for the just-in-time production control of workshops, as well as for the simulation and the performance evaluation of assembly lines
Pralx, Laurent. "Commande linéaire adaptative : solutions bornées et leurs propriétés". Paris 9, 1988. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1988PA090035.
Texto completoSaddek, Lhassane. "Solutions d'un problème aux limites non linéaire discontinu à l'infini". Paris 9, 1988. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1988PA090010.
Texto completoSánchez, Jiménez Oscar. "On the stochastic response of rotor-blade models with Floquet modal theory : applications to time-dependent reliability of tidal turbine blades". Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMIR39.
Texto completoThe response of a deterministic rotating mechanical system under stochastic excitation is studied. A mechanical-probabilistic model is developed to combine the relevant characteristics of both aspects of the study: the behavior of this non-standard class of mechanical system and the random properties of correlated stochastic fields describing load processes. The results are applied to a reliability analysis of a reduced order model of a tidal turbine. Semi-analytic and empirical ( in the Monte-Carlo simulation sense) results are obtained, compared and contrasted. The results are framed with respect to the existing literature, and it is found that they provide an innovative treatment of the problem, in terms of the dynamical choices reflected in the model, in the presentation and interpretation of the modal aspects of the system, and in the type of stochastic inputs considered. We develop a dynamical model describing a broad class of mechanical system that models a rotor-blade structure. The model is informed by careful consideration of previous results, with the aim of constructing a reduced model that captures essential characteristics of the vibratory behavior of the structure. Lagrangian formalism is utilized to obtain the equations of motion. The presence of elastic components, which are discretized in a modal way, results in a system of ordinary differential equations with periodic coefficients. The Floquet theory of Linear time-periodic systems is applied on the deterministic dynamical model to synthesize an extension of traditional modal analysis to systems with periodic coefficients. The response of the system is formulated in terms of Floquet exponents and the associated Floquet periodic eigenvectors, from which the Floquet State Transition Matrix can be obtained. Several methods are applied to the modal study of the system, and a new time-frequency approach is proposed based on PGHW wavelets and its associated scalogram. Using an innovative notation to describe probabilistic moments of stochastic quantities, a moment propagation scheme is presented and exploited. The advantages of the treatment, particularly in the case of spatio-temporal stochastic fields, is in its applicability and systematic structure of development. This moment propagation strategy is coupled with a maximum entropy formulation to reconstruct the probability density function of the response and obtain important descriptors of the response, such as the Extreme Value Distribution. The moment propagation technique presented is applied to nonstationary processes. The results from Modal Floquet theory are integrated into this analysis. The problem of crossings of a certain threshold is considered for this type of nonstationary stochastic process. Their response is shown to yield a time-dependent reliability problem, which is resolved using the estimated EVD and then by numerical simulation
Kurdi, Mohamed. "Solutions périodiques de systèmes différentiels périodiques de dimension trois avec symétries". Metz, 1987. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1987/Kurdi.Mohamed.SMZ8703.pdf.
Texto completoThis work studies periodics differentiel systems, in third dimension with symmetries. We look for periodic solutions of systems of this kind. We study definitions and properties for systems and their solutions we prove that every periodic system with symmetries has always a non trivial periodic solution, with the symmetries of the systems. We use theses results to give a new method called "symmetries method" to answer to the problem of existence of periodic solutions for differential systems perturbated in a critical way with symmetries. In the critical case, Poincaré's theorem cannot be applied to prove existence of periodic solutions for the perturbated systems. The "symmetries method" give results where another methods are fruitless, either because of complicated computations (J. K. Hale) or for reasons of inapplicability (Malkin) the "symmetries method" can provide in some cases existence of periodic solutions for non linear differential systems with symmetries expressed by x = Bx + G(t, x) where G has an affine or linear majoration. It osknow that kind of systems are difficults to study
Rabenasolo, Besoa. "Analyse et commande des systèmes linéaires à coefficients périodiques". Lille 1, 1992. http://www.theses.fr/1992LIL10144.
Texto completoLe deuxième chapitre concerne la commande non optimale: on y expose plusieurs formes de commandes pour la stabilisation et le placement de multiplieurs caractéristiques. Un reconstructeur d'état échantillonné est introduit, basé sur le principe de la commande SSPH. On y trouve aussi une méthode pour le calcul de la loi de commande en boucle ouverte permettant d'obtenir un cycle limite ou une orbite périodique donnée. Le troisième chapitre concerne la commande optimale, notamment la résolution de l'équation différentielle (ou récurrente) périodique de Riccati avec une application à la poursuite optimale de trajectoire périodique. Enfin, dans le quatrième et dernier chapitre, l'utilisation du lemme de Gromwall conduit à un résultat original concernant la stabilité robuste des systèmes incertains définis autour d'un système nominal linéaire à coefficients périodiques
Saadane, Allal. "Réduction des systèmes linéaires périodiques : application à la commande". Lille 1, 1990. http://www.theses.fr/1990LIL10083.
Texto completoFarges, Christophe. "Méthodes d'analyse et de synthèse robustes pour les systèmes linéaires périodiques". Phd thesis, Université Paul Sabatier - Toulouse III, 2006. http://tel.archives-ouvertes.fr/tel-00132343.
Texto completoCieutat, Philippe. "Solutions presque-périodiques d'équations d'évolution et de systèmes différentiels non linéaires". Paris 1, 1996. http://www.theses.fr/1996PA010072.
Texto completo