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Thèse

Diagnostic et observation d'une classe de systèmes dynamiques hybrides. Application au convertisseur multicellulaire série, Diagnosis and observation of a class of hybrid dynamical systems Application to the multicellular converter

Jérémy van Gorp

Cette thèse s’intéresse au diagnostic et à l’observation de systèmes linéaires à commutations et à l’application au convertisseur multicellulaire série. L’objectif est de proposer des solutions pour des sous-systèmes non-observables au sens classique et dont des fautes continues ou discrètes…, This thesis deals with the diagnosis and the observation of a large class of switched linear systems with an application to the multicellular converter. The objective is to provide solutions for non-observable subsystems in the classical sense which can be influenced by continuous or discrete…

Autre. Université de Valenciennes et du Hainaut-Cambresis, 2013. Français. ⟨NNT : 2013VALE0033⟩. ⟨tel-00933659⟩

Article dans une revue

Fault Detection and Isolation of Aircraft Air Data/Inertial system

Denis Berdjag, Jérome Cieslak, Ali Zolghadri

A method for failure detection and isolation (FDI) for redundant aircraft sensors is presented. The outputs of the concerned sensors are involved in the computation of §ight control laws, and the objective is to eliminate any fault before propagation in the control loop when selecting a unique §…

EUCASS Proceedings Series - Advances in AeroSpace Sciences, 2013, 6, pp.317-332. ⟨10.1051/eucass/201306317⟩. ⟨hal-00913429⟩

Thèse

Contrôle de la contraction musculaire volontaire après un traumatisme médullaire cervical : Etude de la réorganisation des activations musculaires et corticales, Control of actual muscular contraction after cervical spinal cord injury: Study of the reorganization of cortical and muscular activations

Sylvain Cremoux

La réalisation d'une action motrice implique l'activation simultanée des muscles agonistes et antagonistes contrôlés par le système nerveux central. Suite à un traumatisme médullaire, la détérioration de la moelle épinière entraine à la fois une perte d'efficience motrice et des…, The realization of a motor action involves simultaneous activation of both agonist and antagonist muscles controlled by the central nervous system. Following spinal cord injury, damage to the spinal cord causes both a loss of motor efficiency and changes in the control of muscle activations. In the…

Biomécanique [physics.med-ph]. Université d'Aix-Marseille, 2013. Français. ⟨NNT : ⟩. ⟨tel-01558623⟩

Thèse

Advanced control design tools for automotive applications, Outils de commande avancés pour les applications automobiles

Tran Anh-Tu Nguyen

This thesis addresses the development of some advanced control design tools for a class of nonlinear systems in general and for automotive systems in particular.Motivated by automotive applications, Part I proposes some novel theoretical results on control design for nonlinear systems under Takagi-…, Cette thèse est consacrée au développement de techniques de commande avancées pour des classes de systèmes non linéaires en général et pour des applications automobiles en particulier.Pour répondre au besoin du contrôle moteur, la première partie propose des nouveaux résultats théoriques sur la…

Other. Université de Valenciennes et du Hainaut-Cambresis, 2013. English. ⟨NNT : 2013VALE0037⟩. ⟨tel-00930910⟩

Article dans une revue

Development of a new nonlinear numerical material model for woven composite materials accounting for permanent deformation and damage

Olivier Cousigné, David Moncayo, Daniel Coutellier, Pedro Camanho, Hakim Naceur, Steffen Hampel

Due to their draping, stiffness, improved ductility and damage tolerance properties woven composites are being increasingly used for the construction of crash-relevant structural parts. Textile composites may depict a nonlinear behavior along several directions. Moreover, considerably-thick…

Composite Structures, 2013, 106, pp.601-614. ⟨10.1016/j.compstruct.2013.07.026⟩. ⟨hal-03613717⟩

Article dans une revue

Analysis of thin composite structures using an efficient hex-shell finite element

Seddik Shiri, Hakim Naceur

In this paper a general methodology for the modeling of material composite multilayered shell structures is proposed using a Hex-shell finite element modeling. The first part of the paper is devoted to the general FE formulation of the present composite 8-node Hex-shell element called SCH8, based…

Journal of Mechanical Science and Technology, 2013, 27 (12), pp.3755-3763. ⟨10.1007/s12206-013-0920-2⟩. ⟨hal-03624959⟩

Article dans une revue

Reduced numerical model to investigate the dynamic behaviour of honeycombs under mixed shear–compression loading

Rami Tounsi, Bassem Zouari, Fahmi Chaari, Eric Markiewicz, Grégory Haugou, Fakhreddine Dammak

Cellular materials such as aluminium honeycombs combine lightweight with an efficient crash energy absorption capability. They have a major role in a wide range of transport applications to reduce gas emission by the design of lighter structures but remaining safe in accident case. Many…

Thin-Walled Structures, 2013, 73, pp.290-301. ⟨10.1016/j.tws.2013.08.016⟩. ⟨hal-03625158⟩

Article dans une revue

A comparison of the impact of CPOE implementation and organizational determinants on doctor–nurse communications and cooperation

Sylvia Pelayo, Françoise Anceaux, Janine Rogalski, Peter L. Elkin, Marie-Catherine Beuscart-Zephir

Objective To compare the impact of CPOE implementation and of the workplace organizational determinants on the doctor–nurse cooperation and communication processes. Method A first study was undertaken in eight different wards aimed to identify the different workplace organizations that support…

International Journal of Medical Informatics, 2013, 82 (12), pp.e321-e330. ⟨10.1016/j.ijmedinf.2012.09.001⟩. ⟨hal-03522368⟩

Article dans une revue

Relevance of Wavelet Shape Selection in a complex signal

Maxence Bigerelle, Gildas Guillemot, Zahra Khawaja, Mohamed El Mansori, Jérôme Antoni

In wavelet analysis, the signal reconstruction and statistical estimators are strongly influenced by the wavelet shape that controls the time-frequency localization properties. However, this dependency does not imply that the wavelet form is physically relevant to extract spatially invariant…

Mechanical Systems and Signal Processing, 2013, 41 (1-2), pp.14-33. ⟨10.1016/j.ymssp.2013.07.001⟩. ⟨hal-04530634⟩

Article dans une revue

Effects of a turbulent wall jet on heat transfer over a non-confined backward-facing step

Nicolas Lancial, François Beaubert, Souad Harmand, G. Rolland

Experimental and numerical analysis of a turbulent wall jet on the heat transfer downstream of a non-confined backward-facing step are presented. Several configurations are studied to analyse the influence of the upstream flow and the height of the step. An infrared camera and a hot wire were used…

International Journal of Heat and Fluid Flow, 2013, 44, pp.336-347. ⟨10.1016/j.ijheatfluidflow.2013.07.003⟩. ⟨hal-03623110⟩