A5019729338- Vibration and Dynamic Analysis
- Vibration Control and Rheological Fluids
- Mechanical stress and fatigue analysis
- Magnetic Bearings and Levitation Dynamics
- Structural Health Monitoring Techniques
- Fluid Dynamics and Vibration Analysis
- Mechanical Engineering and Vibrations Research
- Dynamics and Control of Mechanical Systems
- Aeroelasticity and Vibration Control
- Hydraulic and Pneumatic Systems
- Tribology and Lubrication Engineering
- Gear and Bearing Dynamics Analysis
- Probabilistic and Robust Engineering Design
- Seismic Performance and Analysis
- Cellular and Composite Structures
- Acoustic Wave Phenomena Research
- Structural Analysis and Optimization
- Composite Structure Analysis and Optimization
- Belt Conveyor Systems Engineering
- Computational Fluid Dynamics and Aerodynamics
- Adhesion, Friction, and Surface Interactions
- Innovative Energy Harvesting Technologies
- Wind and Air Flow Studies
- Bladed Disk Vibration Dynamics
- Mechanical Behavior of Composites
Institut Clément Ader
2015-2025
Université de Toulouse
2013-2024
Centre National de la Recherche Scientifique
2007-2024
Institut Superieur de l'Aeronautique et de l'Espace (ISAE-SUPAERO)
2004-2024
Université Toulouse III - Paul Sabatier
2014-2024
Institut National des Sciences Appliquées de Toulouse
2024
Institut polytechnique de Grenoble
2018
Laboratoire Magmas et Volcans
2016
Mines Saint-Étienne
2016
Laboratoire de Mécanique des Contacts et des Structures
2003-2008
Recently, it has been demonstrated that a vibro-impact type nonlinear energy sink (VI-NES) can be used efficiently to mitigate vibration of linear oscillator (LO) under transient loading. The objective this paper is investigate theoretically and experimentally the potential VI-NES vibrations an LO subjected harmonic excitation (nevertheless, presentation optimal beyond scope paper). Due small mass ratio between flying NES, obtained equations motion are analyzed using method multiple scales...
In this paper, the dynamic response of a harmonically forced linear oscillator (LO) strongly coupled to nonlinear energy sink (NES) is investigated both theoretically and experimentally. The system studied comprises an LO with embedded, purely cubic NES. behavior analyzed in vicinity 1:1 resonance. complexification-averaging technique used obtain modulation equations associated fixed points. These are using asymptotic expansion study regimes related relaxation oscillation slow flow, called...
Identification of flutter margins in modern aeroelastic systems is a challenging task due to increased nonlinearities novel designs, which can result instabilities occurring below the linear speed. These pose significant risk as they may involve multiple stable solutions, such large-amplitude self-sustained oscillations. The lack efficient nonlinear bifurcation analysis methods for experimental exacerbates challenges associated with postflutter analysis. This paper presents data-driven...
Abstract. This study presents a comprehensive numerical modeling approach for thermoplastic foams processing, produced via supercritical CO₂-assisted extrusion foaming. The model focuses on the nucleation and growth of bubbles within polymer matrix, employing influence volume to simulate these dynamics. Key phenomena such as gas diffusion, rate, bubble growth, evolution non-influence volumes are captured predict foam microstructure cellular density. Results highlight model’s capability...
This paper presents the interest of an original absorber vibration in order to reduce chatter turning process. The device is composed a linear oscillator corresponding flexible cutting tool subject strongly coupled Nonlinear Energy Sink (NES), with purely cubic stiffness. novelty this work use nonlinear law, more accurate for modeling delayed equations motion are analyzed using combination method multiple scales and harmonic balance. Different types responses regimes revealed such as...
This paper is devoted to the theoretical and experimental investigation of a sample automotive belt-pulley system subjected tension fluctuations. The equation motion for transverse vibrations leads Duffing oscillator parametrically excited. analysis performed via multiple scales approach predicting nonlinear response, considering longitudinal viscous damping. An setup gives rise parametric instabilities also exhibits more complex phenomena. validates assumptions made proposed model.
This paper presents a practical framework and its applications of motion tracking algorithms applied to structural dynamics. Tracking points (“features”) across multiple images are fundamental operation in many computer vision applications. The aim this work is show the capability (CV) for estimating dynamic characteristics two mechanical systems using noncontact, markerless, simultaneous single input output analysis. Kanade–Lucas–Tomasi trackers used as virtual sensors on systems’ video...
This study presents a hybrid non-linear unsteady vortex lattice method-vortex particle method (NL UVLM-VPM) to investigate the aerodynamics of rotor blades hovering in and out ground effect. The is interest for fast aerodynamic prediction helicopter smaller blades. UVLM models vorticity along near field wakes with panels that are then converted into their equivalent representations. standard Vreman subgrid scale model incorporated context large eddy simulation mesh-free VPM stabilize wake...
Abstract Galloping is a self-excited vibration problem that structures immersed in fluid flow can experience. Due to its essential nonlinear phenomena, the structure exhibits limit cycle oscillations (LCOs), which, at high levels, lead failure of systems. This work proposes an investigation electromagnetic-enhanced energy sinks (NES-EH) for hybrid mitigation aeroelastic LCOs and harvesting. The study focuses on prismatic bluff body with linear suspension airflow, using classical steady...