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Affichage de 4351 à 4360 sur 6388

Article dans une revue

Observer design for Takagi-Sugeno descriptor models: an LMI approach

Víctor Estrada Manzo, Thierry-Marie Guerra, Zsofia Lendek

This paper considers observer design for nonlinear descriptor systems. We propose approaches based on Takagi-Sugeno (TS) models. An extended estimation vector is used in order to keep the descriptor structure of the observer. The design conditions for this new type of observers are expressed as LMI…

Automatica, 2015, 52, pp.154-159. ⟨10.1016/j.automatica.2014.11.008⟩. ⟨hal-03428793⟩

Communication dans un congrès

Dynamic behavior and failure of the base and heat affected materials of a HSS fillet welded joint

Julien Carrier, Eric Markiewicz, Grégory Haugou, David Lebaillif, Nicolas Leconte, Hakim Naceur

Welded joints, due to their manufacturing process, are commonly weakened areas. This study analyses the dynamic behavior of the Base Metal (BM) and the Heat-Affected Zone (HAZ) materials of a HSS (High Strength Steel) fillet welded joint. First, a specific approach is developed to generate the HAZ…

DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, Sep 2015, Lugano, Switzerland. pp.05011, ⟨10.1051/epjconf/20159405011⟩. ⟨hal-03433914⟩

Communication dans un congrès

Exploitation of the reverberant propagation of elastic waves in structures : towards a concept of low-resource SHM sensor network

Emmanuel Moulin, Farouk Benmeddour, Hossep Achdjian, Lynda Chehami, Jamal Assaad, Julien de Rosny, Claire Prada

Actual implementation of an efficient SHM system is necessarily hampered by the constraints of power-consumption and intrusive- ness (weight, size, in-service integration) of sensors. In the field of ultrasound-based SHM, conventional methods rely on relatively powerful acoustic sources…

International Congress on Ultrasonics, ICU 2015, May 2015, Metz, France. pp.618-621, ⟨10.1016/j.phpro.2015.08.038⟩. ⟨hal-04087497⟩

Chapitre d'ouvrage

Void Fraction Influence Over Aqueous Foam Flow: Wall Shear Stress and Core Shear Evolution

Rogelio Chovet, Fethi Aloui

In this study, the two main transport characterization problems of the foam flow are studied: foam flow stability, through the evolution of the velocity at the core of the foam, and rheology, with the study of the wall shear stress over the lateral walls, for different void fractions. The same…

Progress in Clean Energy Volume 1 Analysis and Modeling, Springer International Publishing, pp.909-931, 2015, ⟨10.1007/978-3-319-16709-1_66⟩. ⟨hal-03579829⟩

Article dans une revue

Développement de capteurs interdigités pour le contrôle de structures

Rafatou Takpara, Dame Fall, Marc Duquennoy, Mohammadi Ouaftouh, Christian Courtois, Mohamed Rguiti, M. Gonon, N. Maurye, Gregory Martic, Véronique Lardot, Laurent Seronveaux, J. Halleux, Christine Pelegris, Mohamed Guessasma

Ce travail porte sur la réalisation de capteurs interdigités (IDT) afin de caractériser la qualité des revêtements et les surfaces des structures. L’enjeu de cette étude est triple. Il s'agit premièrement de disposer de capteurs efficaces pour générer des ondes acoustiques de surface SAW (…

Lebanese Science Journal, 2015, 16 (Special), pp.69-80. ⟨hal-03116778⟩