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Affichage de 1261 à 1270 sur 5614

Communication dans un congrès

Designing fuzzy descriptor observer with unmeasured premise variables for head-two-arms-trunk system

Tran Anh-Tu Nguyen, Jun-Tao Pan, Thierry-Marie Guerra, Mathias Blandeau, Weiwei Zhang

Using the technique of unknown input observer, this paper aims at estimatinginternal variables of people living with a complete spinal cord injury (SCI). The goal is to providea better understanding on the sitting control strategy of SCI people. The observer design is basedon a Head-Two-Arms-Trunk…

21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨10.1016/j.ifacol.2020.12.2227⟩. ⟨hal-03405650⟩

Communication dans un congrès

On Nonlinear Control for Lane Keeping Assist System in Steer-By-Wire Road Wheeled Vehicles

Gabriele Perozzi, Chouki Sentouh, Jérôme Floris, Jean-Christophe Popieul

This paper deals with the design of a lane keeping system in steer-by-wire road four-wheeled vehicles using a nonlinear controller. The controller is designed to take into account the driver's behavior and availability and to control the wheels' angle of the steer system. A high order…

21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨10.1016/j.ifacol.2020.12.2343⟩. ⟨hal-03405389⟩

Communication dans un congrès

Stabilizing unstable biomechanical model to understand sitting stability for persons with spinal cord injury

Thierry-Marie Guerra, Mathias Blandeau, Tran Anh-Tu Nguyen, Hajer Srihi, Antoine Dequidt

This paper deals with the stabilization of a new open-loop unstable non-linear biomechanical model to represent a person living with a spinal cord injury. The computational complexity of the model when using the Takagi-Sugeno formalism is increased compared to previous models which is a source of…

21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨10.1016/j.ifacol.2020.12.2225⟩. ⟨hal-03406742⟩

Communication dans un congrès

Adaptive Fuzzy Control for Multivariable Nonlinear Systems with Indefinite Control Gain Matrix and Unknown Control Direction

Salim Labiod, Thierry-Marie Guerra

In this paper, we focus on the direct adaptive fuzzy control design for a class of uncertain MIMO nonlinear systems with indefinite control gain matrix and unknown control direction. The control design is based on the approximation of an unknown ideal control law that can meet the control objective…

21st IFAC World Congress 2020, Jul 2020, Berlin (Virtual), Germany. pp.8019-8024. ⟨hal-03416185⟩

Communication dans un congrès

Ethical stakes of Industry 4.0

Damien Trentesaux, Emmanuel Caillaud

Industry 4.0 provokes a shift in the way production systems are designed and used that raises ethical questions. This shift stems from several features relevant to Industry 4.0, specifically the increase of the importance of the digital world and the fostering of the development of more autonomous…

21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨10.1016/j.ifacol.2020.12.1486⟩. ⟨hal-02937366⟩

Communication dans un congrès

LPV Framework for Non-Linear Dynamic Control of Soft Robots using Finite Element Model

Maxime Thieffry, Alexandre Kruszewski, Thierry-Marie Guerra, Christian Duriez

This work presents a methodology to control soft robots using a reduced order nonlinear finite element model. The Linear Parameter-Varying (LPV) framework is used both to model the robot along a prescribed trajectory and to design its control law. Model reduction algorithms along with radial basis…

IFAC 2020 - 21rst IFAC World Congress, Jul 2020, Berlin, Germany. ⟨hal-02567575⟩

Chapitre d'ouvrage

Designing Optimal Scaffold Topographies to Promote Nucleus-Guided Mechanosensitive Cell Migration Using in Silico Models, Concevoir, à l'aide modèles cellulaires in silico, des topographies optimales de biomatériaux pour promouvoir la migration cellulaire mécano-sensible guidée par le noyau

Maxime Vassaux, Laurent Pieuchot, Karine Anselme, Maxence Bigerelle, Jean-Louis Milan

Computational models have become an essential part of exploratory protocols in cell biology, as a complement to in vivo or in vitro experiments. These virtual models have the twofold advantage of enabling access to new types of data and validate complex theories. The design of mechanically…

Bilen Emek Abali; Ivan Giorgio. Developments and Novel Approaches in Biomechanics and Metamaterials, 132, Springer International Publishing, pp.199-216, 2020, Advanced Structured Materials, 978-3-030-50464-9. ⟨10.1007/978-3-030-50464-9_12⟩. ⟨hal-03475182⟩

Article dans une revue

Predicting manual wheelchair initiation movement with EMG activity during over ground propulsion

Soufien Chikh, Samuel Boudet, Antonio Pinti, Cyril Garnier, Rawad El Hage, Fairouz Azaiez, Eric Watelain

Context/Objective: This is a preliminary study of movement finalities prediction in manual wheelchairs (MWCs) from electromyography (EMG) data. MWC users suffer from musculoskeletal disorders and need assistance while moving. The purpose of this work is to predict the direction and speed of…

Journal of Spinal Cord Medicine, 2020, 45 (2), pp.262-269. ⟨10.1080/10790268.2020.1778352⟩. ⟨hal-03027969⟩

Thèse

Influence de la rugosité de surfaces de parois sur les instabilités hydrodynamiques d'un écoulement de Couette-Taylor et de Couette-Taylor-Poiseuille, Influence of surface irregularities on hydrodynamic instabilities in Couette-Taylor and Couette-Taylor-Poiseuille flow

Lamia Gaied

Ce travail porte sur l’étude numérique et expérimentale d’un écoulement de Couette-Taylor dans une géométrie à surfaces rugueuses, afin de détecter l’effet de la rugosité sur les instabilités hydrodynamiques. Dans un premier temps, nous avons effectué une étude de simulation numérique (CFD) 3D dans…, : This work deals with a numerical and experimental study of the Couette-Taylor flow where the geometry contains rough surfaces, in order to detect the effect of these irregularities on the hydrodynamic instabilities. Firstly, we carried out a 3D mumerical simulation study (CFD) in the case of a…

Sciences de l'ingénieur [physics]. Université Polytechnique Hauts-de-France, 2020. Français. ⟨NNT : 2020UPHF0018⟩. ⟨tel-03373957⟩

Communication dans un congrès

Minimising the User’s Effort during Wheelchair Propulsion using an Optimal Control Problem

Ouazna Oukacha, Chouki Sentouh, Philippe Pudlo

This paper proposes a study of the optimal control problem with state constraint, using two types of a power-assist wheelchair propulsion. The cost function is given by the metabolic function, which represented by acompromise between the work exerted by the joints muscles (mechanical effect) and an…

17th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2020), Jul 2020, Paris, France. pp.159-166, ⟨10.5220/0009833101590166⟩. ⟨hal-03405407⟩