Nos chercheuses et chercheurs

Cyril Touzé

Unité de Mécanique (UME)

Professeur

HDR

Je suis professeur à l'ENSTA Paris, membre de l'équipe Dynamique des Fluides et Acoustique de l'unité de Mécanique de l'ENSTA Paris.

Activités de recherche et de formation

Mes activités de recherche portent sur la dynamique non linéaire des systèmes mécaniques et plus particulièrement les vibrations non linéaires de structures minces.

Je travaille sur le développement de méthodes pour la réduction de modèles en vibrations non linéaires géométriques, et plus particulièrement sur les méthodes se fondant sur la théorie des variétés invariantes. Nous étudions aussi la transition vers la turbulence d'ondes et la caractérisation du régime turbulent pour les structures minces en grande amplitude, ainsi que la mise au point de techniques innovantes pour le contrôle passif et l'atténuation vibratoire, en utilisant des amortisseurs non linéaires ou en ajoutant des non-linéarités pour améliorer l'effet trou noir acoustique.

Prix et distinctions

Topical associate editor pour la revue Nonlinear Dynamics

Nos chercheuses et chercheurs

Cyril Touzé

Activités de recherche et de formation

Prix et distinctions

Publications HAL

Open Review of "Normal form analysis of nonlinear oscillator equations with automated arbitrary order expansions

Nonlinear dynamical phenomena in musical acoustics

Reduced-order modeling for nonlinear vibrations structures

Simulation-free Reduced-order Modeling using Invariant Manifolds

Simulation-free Reduced-order Modeling using Invariant Manifolds

Reduced order modelling of fully coupled electro-mechanical systems through invariant manifolds with applications to microstructures

Normal form analysis of nonlinear oscillator equations with automated arbitrary order expansions

Normal form analysis of nonlinear oscillator equations with automated arbitrary order expansions

Nonlinear normal modes as invariant manifolds for model order reduction

Reduced order modeling of rotating structures featuring geometric nonlinearity with the direct parametrisation of invariant manifolds method

Review of “Reduced-order modeling of geometrically nonlinear rotating structures using the direct parametrisation of invariant manifolds”

Frequency combs in a MEMS resonator featuring 1:2 internal resonance: ab initio reduced order modelling and experimental validation

Nonlinear dynamics of coupled oscillators in 1:2 internal resonance: effects of the non-resonant quadratic terms and recovery of the saturation effect

Nonlinear dynamics of coupled oscillators in 1:2 internal resonance: effects of the non-resonant quadratic terms and recovery of the saturation effect

A numerical package for model order reduction of large dimensional finite element systems of nonlinear vibrating structures based on invariant manifold theory

A numerical package for model order reduction of large dimensional finite element systems of nonlinear vibrating structures based on invariant manifold theory

Asymptotic Computation of Invariant Manifolds of large Finite Element structures with Geometric Nonlinearities

Comparison of nonlinear methods for reduced-order modeling of geometrically nonlinear structures

Model order reduction for geometrically nonlinear beams featuring internal resonance and centrifugal effect

Model order reduction for geometrically nonlinear beams featuring internal resonance and centrifugal effect

Model order reduction of nonlinear piezoelectric microstructures through direct parametrisation of invariant manifolds

Model order reduction of nonlinear MEMS structures: a high order invariant manifold approach

Model order reduction of nonlinear MEMS structures: a high order invariant manifold approach

Réduction de modèle en dynamique non linéaire par la méthode de paramétrisation des variétés invariantes. Application au cas des structures tournantes

Développement d’atténuateurs vibratoires à Trous Noirs Acoustiques Vibro- Impactés

Développement d’atténuateurs vibratoires à Trous Noirs Acoustiques Vibro- Impactés

Energy harvesting efficiency of unimorph piezoelectric acoustic black hole cantilever shunted by resistive and inductive circuits

Direct computation of nonlinear mapping via normal form for reduced-order models of finite element nonlinear structures

Experimental evidence of energy transfer and vibration mitigation in a vibro-impact acoustic black hole

Experimental evidence of energy transfer and vibration mitigation in a vibro-impact acoustic black hole

Comparison of Reduction Methods for Finite Element Geometrically Nonlinear Beam Structures

Backbone curves, Neimark-Sacker boundaries and appearance of quasi-periodicity in nonlinear oscillators: application to 1:2 internal resonance and frequency combs in MEMS

Linear and nonlinear dynamics of a plate with acoustic black hole, geometric and contact nonlinearity for vibration mitigation

Linear and nonlinear dynamics of a plate with acoustic black hole, geometric and contact nonlinearity for vibration mitigation

Model Order Reduction based on Direct Normal Form: Application to Large Finite Element MEMS Structures Featuring Internal Resonance

Model order reduction methods for geometrically nonlinear structures: a review of nonlinear techniques

Predicting the Type of Nonlinearity of Shallow Spherical Shells: Comparison of Direct Normal Form with Modal Derivatives

Reduced order modelling and experimental validation of a MEMS gyroscope test-structure exhibiting 1:2 internal resonance

Backbone curves of coupled cubic oscillators in one-to-one internal resonance: bifurcation scenario, measurements and parameter identification

Comparison of nonlinear mappings for reduced-order modelling of vibrating structures: normal form theory and quadratic manifold method with modal derivatives

Non-intrusive reduced order modelling for the dynamics of geometrically nonlinear flat structures using three-dimensional finite elements

A vibro-impact acoustic black hole for passive damping of flexural beam vibrations

Nonlinear energy transfer to improve the acoustic black hole effect

Nonlinear vibrations of thin plates with variable thickness: Application to sound synthesis of cymbals

Nonsmooth contact dynamics for the numerical simulation of collisions in musical string instruments

String/frets contacts in the electric bass sound: Simulations and experiments

Amortisseur vibratoire magnétique pour les vibrations de plaque mince : étude expérimentale et numérique

Méthode modale mixte pour la simulation numérique de contacts multiples entre une corde vibrante et un obstacle

Flutter suppression using a magnetic vibration absorber

Flutter suppression using a magnetic vibration absorber

Improvement of the acoustic black hole effect by using energy transfer due to geometric nonlinearity

Improvement of the acoustic black hole effect by using energy transfer due to geometric nonlinearity

Influence of a hysteretic damper on the flutter instability

A complete vibroacoustic model for the nonlinear response of imperfect circular plates : application to sound synthesis

DYNAMIC BEHAVIOR OF A TUNABLE MAGNETIC VIBRATION ABSORBER

Effet des non linéarités géométriques sur l'amortissement par effet trou noir

Effet des non linéarités géométriques sur l'amortissement par effet trou noir

A MODAL APPROACH TO THE NUMERICAL SIMULATION OF A STRING VIBRATING AGAINST AN OBSTACLE: APPLICATIONS TO SOUND SYNTHESIS

A phenomenological model for predicting the effect of damping on wave turbulence spectra in vibrating plates

Design of a Magnetic Vibration Absorber with Tunable Stiffnesses

Effects of geometrical nonlinearities on the acoustic black hole effect

Idiophones à plaque et à coque. Partie I. Instruments linéaires et faiblement non linéaires: entre cloches et steelpans

Idiophones à plaques et coques. Partie II. Instruments fortement non linéaires : cymbales, tam-tams et plaques tonnerre

PASSIVE CONTROL OF AIRFOIL FLUTTER USING A NONLINEAR TUNED VIBRATION ABSORBER

Wave turbulence in vibrating plates

Simulations of nonlinear plate dynamics: an accurate and efficient modal algorithm

Simulations of nonlinear plate dynamics: an accurate and efficient modal algorithm

Double polarisation in nonlinear vibrating piano strings

Conception d'un amortisseur de vibrations magnétique à raideurs ajustables

Conception d'un amortisseur de vibrations magnétique à raideurs ajustables

Etude du contact corde / frette

Étude de l'influence d'un amortisseur pseudoélastique sur l'instabilité de flottement

Energy-conserving Modal Synthesis scheme for Vibrations of Thin Plates in Strongly Nonlinear Regime

Energy-conserving Modal Synthesis scheme for Vibrations of Thin Plates in Strongly Nonlinear Regime

Pseudoelastic Shape Memory Alloys to Mitigate the Flutter Instability: A Numerical Study