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Affichage de 561 à 570 sur 5525

  • THESE

Conception et pilotage d'un système de production Humain-cyber-physique : apport de la méthode CWA, Design and operation of a Human-Cyber-Physical production system : benefits from the CWA method

Quentin Berdal

Les systèmes industriels évoluent régulièrement depuis plus d’un siècle, avec à la clef trois grandes révolutions. Alors que la quatrième révolution se profile et gagne en intérêt auprès de la communauté scientifique, certains défauts persistent. Chaque nouvelle révolution tend à repousser l’humain..., Industrial systems are constantly evolving for almost two centuries, resulting in three major revolutions. Although the upcoming fourth revolution is steadily catching more interest from the scientific community, some defaults remain. Each new revolution tends to push humans back further from the...

Automatique / Robotique. Université Polytechnique Hauts-de-France, 2022. Français. ⟨NNT : 2022UPHF0012⟩. ⟨tel-03851331⟩

  • ART

Influence of powder mixing method on properties of high entropy alloys of FeCrMnAlMo thin coatings obtained by magnetron sputtering

Y.Y. Santana, Mourtada-Aly Sow, Corinne Nouvellon, Catherine Cordier, Franck Béclin, Matthieu Touzin, A. Tromont, Xavier Noirfalise, Laurent Boilet, Jean-François Trelcat, Mirentxu Dubar, Hervé Morvan, Maxence Bigerelle

High Entropy Alloys of FeCrMnAlMo thin coatings obtained by magnetron sputtering were studied. The influence of the powder mixing method to obtain the targets used in the physical vapor deposition reactors was evaluated concerning the mechanical and tribological properties of the coatings. The...

Surface and Coatings Technology, 2022, Surface and Coatings Technology, 446, pp.128744. ⟨10.1016/j.surfcoat.2022.128744⟩. ⟨hal-03767586⟩

  • ART

Time scale reachability and controllability of time‐varying linear systems

Bacem Ben Nasser, Mohamed Djemai, Michael Defoort, Taous‐meriem Laleg-Kirati

In this paper, we investigate the analysis of reachability and controllability for time-varying linear systems evolving on nonuniform time domains also known as arbitrary time scales. Based on appropriate operators, some necessary and sufficient conditions are derived to guarantee the reachability...

Asian Journal of Control, 2022, 24 (5), pp.2074-2088. ⟨10.1002/asjc.2661⟩. ⟨hal-03969319⟩

  • ART

Membership Functions Integration Approach for State Feedback Control of T-S Fuzzy Systems

Wen-Bo Xie, Bo-Lin Xu, Chen Peng, Anh-Tu Nguyen

For the stability analysis problem of a T-S fuzzy system, a membership functions integration-based method is proposed to relax the existing conservatism. Firstly, indefinite integral functions are derived for the membership functions. Then with a piecewise linear approximation approach, the...

International Journal of Fuzzy Systems, 2022, 24 (6), pp.2931-2945. ⟨10.1007/s40815-022-01309-9⟩. ⟨hal-04278855⟩

  • ART

Adaptive robust finite-time tracking control for quadrotor subject to disturbances

Yakoub Nettari, Moussa Labbadi, Serkan Kurt

Quadrotors are extremely agile UAVs with many unknowns regarding their moment of inertia, drag coefficients, and mass. Aside from aerodynamic turbulence, the quadrotor has a high level of nonlinearity due to its underactuated mechanical system. These last two factors cause issues that necessitate...

Advances in Space Research, 2022, 71 (1), pp.3803-3821. ⟨10.1016/j.asr.2022.09.016⟩. ⟨hal-03809801⟩

  • ART

Zonotopic observer designs for uncertain Takagi–Sugeno fuzzy systems

Masoud Pourasghar, Tran Anh-Tu Nguyen, Thierry-Marie Guerra

This paper addresses the zonotopic observer design for nonlinear systems affected by uncertainties, i.e., state disturbances and measurement noises using Takagi–Sugeno (TS) fuzzy technique. The system uncertainties are considered as unknown but bounded, which are handled via a set-membership...

Engineering Applications of Artificial Intelligence, 2022, 114, pp.105126. ⟨10.1016/j.engappai.2022.105126⟩. ⟨hal-04278847⟩

  • COMM

Principes et potentialités du test de formabilité à hautes températures EFForT : étude de la forgeabilité de l’Inconel 625

Jean-Dominique Guerin, Camille Durand, Philippe Moreau, Ludovic Freund, José La Barbera, Eli Puchi Cabrera, Régis Bigot, Laurent Dubar

En mise en forme à chaud, la rhéologie du produit –la pièce– et la tribologie au sens des conditions de contact et d’interfaces outils/pièce sont fortement couplées et conditionnent directement la performance du procédé et la qualité du produit. La forte non-linéarité des phénomènes mis en jeu rend...

25e Congrès Français de Mécanique (CFM 2022), Centrale Nantes; Université de Nantes; ENSAM d'Angers; Ecole Navale de Brest; Université de La Rochelle, Aug 2022, Nantes, France. ⟨hal-04280151⟩

  • COMM

Adaptive coupled discrete/continuous approach for the forming of materials

Farouk Yahya, Cédric Hubert, Nicolas Leconte, Laurent Dubar

During the manufacturing process of train wheels, industries encounter limitations to study the fatigue cracking problem with the finite element method (FEM). Another method, the discrete element method (DEM), is more adapted to study these types of problems, but it is very expensive. This paper..., La méthode des éléments finis présente des limitations pour évaluer la fissuration par fatigue des outils de mise en forme (roues de train). La méthode des éléments discrets est plus adaptée à cette catégorie de problème, mais elle est très coûteuse. Le papier présente une stratégie permettant de...

14th International Conference on Computational Structures Technology, Aug 2022, Montpellier, France. ⟨hal-03878991⟩

  • ART

Surface Inspection and Description in Metrology and Tribology—Vol.1

Michal Wieczorowski, Maxence Bigerelle, Chris Brown, Pawel Pawlus, Rafal Reizer, Alejandro Pereira

The primary goal of this Special Issue was to present recent trends in surface inspection and description, from both metrological and tribological points of view [...]

Materials, 2022, 15 (16), pp.5636. ⟨10.3390/ma15165636⟩. ⟨hal-04489067⟩

  • UNDEFINED

Visual Secrets : A recognition-based security primitive and its use for boardroom voting

Enka Blanchard, Sébastien Bouchard, Ted Selker

This paper presents and evaluates a new security primitive in the form of non-transferable ``visual secrets''. We show how they can be used in the design of voting systems. More specifically, we introduce a receipt-free low-tech visually verifiable boardroom voting system which is built...

2022. ⟨hal-03133412v3⟩