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Affichage de 1851 à 1860 sur 5569

Article dans une revue

Implementation of standard penalty procedures for the solution of incompressible Navier–Stokes equations, employing the element-free Galerkin method

Juan Carlos Álvarez-Hostos, Victor D. Fachinotti, Alirio J. Sarache Piña, Alfonso D. Bencomo, Eli Saúl Puchi-Cabrera

The present work introduces an alternative implementation of the element-free Galerkin method (EFGM) for the steady incompressible Navier–Stokes equations. The linear momentum balance and mass conservation equations have been developed on the basis of this global weak formulation. The weak forms of…

Engineering Analysis with Boundary Elements, 2018, 96, pp.36-54. ⟨10.1016/j.enganabound.2018.08.008⟩. ⟨hal-03671683⟩

Article dans une revue

On the consensus tracking investigation for multi-agent systems on time scale via matrix-valued Lyapunov functions

Serhii Babenko, Michael Defoort, Mohamed Djemai, Serge Nicaise

This paper is devoted to the leader–follower consensus problem for high-order multi-agent systems with inherent nonlinear dynamics evolving on an arbitrary time domain. This problem is investigated using the time scale theory. Based on this theory, some sufficient conditions are derived to…

Automatica, 2018, 97, pp.316-326. ⟨10.1016/j.automatica.2018.08.003⟩. ⟨hal-03227535⟩

Article dans une revue

Distributed leader-follower consensus for a class of semilinear second order multi-agent systems using time scale theory

Serhii Babenko, Michael Defoort, Mohamed Djemai, Serge Nicaise

The problem of distributed leader‐follower consensus for second‐order linear multiagent systems with unknown nonlinear inherent dynamics is investigated in this paper. It is assumed that the dynamic of each agent is described by a semilinear second‐order dynamic equation on an arbitrary time scale…

International Journal of Robust and Nonlinear Control, 2018, 29 (1), pp.433-450. ⟨10.1002/rnc.4406⟩. ⟨hal-03479682⟩

Article dans une revue

Hydrodynamic oscillations inside deep cavities with wall offset

Denis Cornu, Marc Lippert, Franck Kerhervé, Fethi Aloui, Laurent Keirsbulck

The paper focuses on the pressure amplitude response of deep cavities at low Mach numbers with wall offset between the leading and trailing edges. Three wall offsets of , and are considered for different Reynolds numbers and values of length-to-depth ratio (=0.24, 0.48 and 0.65). Present…

European Journal of Mechanics - B/Fluids, 2018, 72, pp.403-409. ⟨10.1016/j.euromechflu.2018.04.013⟩. ⟨hal-03449834⟩

Article dans une revue

Strain rate effects on the compressive response of wood and energy absorption capabilities – Part B: Experimental investigation under rigid lateral confinement

Jérémy Wouts, Grégory Haugou, M. Oudjene, Hervé Morvan, Daniel Coutellier

The compressive properties of spruce and beech wood species at a large range of strain rates – from 0.001 to 600 – under rigid lateral confinement have been investigated, using an original experimental device especially developed for the purpose. The work is motivated by the need to explore the…

Composite Structures, 2018, 204, pp.95-104. ⟨10.1016/j.compstruct.2018.07.001⟩. ⟨hal-03110778⟩

Article dans une revue

Assessing Cyber-Physical Systems to Balance Maintenance Replacement Policies and Optimize Long-Run Average Costs for Aircraft Assets

Marco Andreacchio, Abdelghani Bekrar, Rachid Benmansour, Damien Trentesaux

Many aircraft assets are subject to both preventive (scheduled) and corrective (unscheduled) replacement policies to ensure adequate levels of reliability and availability. The problem, particularly for assets that exist in large quantities, is that preventive replacement tasks often involve…

IET Cyber-Physical Systems: Theory & Applications, 2018, 4 (2), pp.148-155. ⟨10.1049/iet-cps.2018.5038⟩. ⟨hal-03479902⟩

Article dans une revue

Study of the Dynamic and Thermal Behaviors of an Air Flow in a T-Bifurcation

Ali Riahi, Julien Pellé, Lilia Chouchene, Souad Harmand, Sadok Ben Jabrallah

This paper presents a numerical and experimental study of a turbulent flow of air in a T-bifurcation. This configuration corresponds to a stator containing radial vents oriented vertically to the rotor–stator air gap in electrical machines. Our analysis focuses on the local convective heat transfer…

Journal of Heat Transfer, 2018, 140 (11), ⟨10.1115/1.4040481⟩. ⟨hal-03449678⟩

Article dans une revue

HAPE: A high-level area-power estimation framework for FPGA-based accelerators

Mariem Makni, Smail Niar, Mouna Baklouti, Mohamed Abid

Recent embedded applications are widely used in several industrial domains such as automotive and multimedia systems. These applications are critical and complex, involving more computing resources and therefore increasing the power consumption of the system. Although performance still remains an…

Microprocessors and Microsystems: Embedded Hardware Design , 2018, 63, pp.11-27. ⟨10.1016/j.micpro.2018.08.004⟩. ⟨hal-03400521⟩

Article dans une revue

HCI in practice: An empirical study with software process capability maturity model consultants in Brazil

Taisa Guidini Gonçalves, Káthia Marçal de Oliveira, Christophe Kolski

Human-computer interaction (HCI) and software engineering (SE) are undoubtedly important domains for the development of interactive systems. The quality of an interactive system is usually considered dependent on the user interface design and evaluation, which implies the use of HCI and SE…

Journal of Software: Evolution and Process, 2018, 30 (11), pp.1-22. ⟨10.1002/smr.2109⟩. ⟨hal-03274986⟩

Chapitre d'ouvrage

Direct Compression Loading Using the Pre-stretched Bar Technique: Application to High Strains Under Moderate Strain Rates

Grégory Haugou, Hervé Morvan, Nicolas Leconte

The mechanical properties of ductile materials are of high interest in the domain of energy absorption, high speed forming processes, machining processes and ballistics. The range of the intermediate strain rates has always been required for the main testing devices, particularly for classical…

Dynamic Behavior of Materials, Volume 1, Springer International Publishing, pp.169-173, 2018, Conference Proceedings of the Society for Experimental Mechanics Series, 978-3-319-62956-8. ⟨10.1007/978-3-319-62956-8_28⟩. ⟨hal-03450850⟩