Sébastien Berger
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View article: Fast–slow analysis of passive mitigation of self-sustained oscillations by means of a bistable nonlinear energy sink
Fast–slow analysis of passive mitigation of self-sustained oscillations by means of a bistable nonlinear energy sink Open
View article: Fast-Slow Analysis of Passive Mitigation of Self-Sustained Oscillations by Means of a Bistable Nonlinear Energy Sink
Fast-Slow Analysis of Passive Mitigation of Self-Sustained Oscillations by Means of a Bistable Nonlinear Energy Sink Open
View article: Dynamic instability mitigation using a single nonlinear energy sink in a friction system with two unstable modes
Dynamic instability mitigation using a single nonlinear energy sink in a friction system with two unstable modes Open
International audience
View article: Solution analytique d'une bifurcation col-noeud dynamique: application à la prédiction de la limite de fonctionnement d'un absorbeur non linéaire de type NES pour l'atténuation de cycles limites
Solution analytique d'une bifurcation col-noeud dynamique: application à la prédiction de la limite de fonctionnement d'un absorbeur non linéaire de type NES pour l'atténuation de cycles limites Open
View article: Robust optimization of nonlinear energy sinks used for mitigation of friction-induced limit cycle oscillations
Robust optimization of nonlinear energy sinks used for mitigation of friction-induced limit cycle oscillations Open
View article: Sparse polynomial chaos expansion for stability analysis of a clutch system with uncertain parameters
Sparse polynomial chaos expansion for stability analysis of a clutch system with uncertain parameters Open
In the transmission systems of vehicles, unforced vibrations can be observed during the sliding phase of clutch engagement. These vibrations are due to frictional forces and may generate noise. Several studies have shown that the stability…
View article: Dynamic behavior analysis of a mechanical system with two unstable modes coupled to a single nonlinear energy sink
Dynamic behavior analysis of a mechanical system with two unstable modes coupled to a single nonlinear energy sink Open
View article: Nonlinear Dynamic Behaviour Analysis of a Clutch System with Uncertainties Using Polynomial Chaos and the Constrained Harmonic Balance Method
Nonlinear Dynamic Behaviour Analysis of a Clutch System with Uncertainties Using Polynomial Chaos and the Constrained Harmonic Balance Method Open
The study of the nonlinear dynamic behaviour of friction systems in general and of clutch systems in particular remains an open problem. Noise and vibrations induced by friction in the sliding phase of a clutch are very sensitive to design…
View article: Prediction of the dynamic behavior of an uncertain friction system coupled to nonlinear energy sinks using a multi-element generalized polynomial chaos approach
Prediction of the dynamic behavior of an uncertain friction system coupled to nonlinear energy sinks using a multi-element generalized polynomial chaos approach Open
View article: Error Estimation of Polynomial Chaos Approximations in Transient Structural Dynamics
Error Estimation of Polynomial Chaos Approximations in Transient Structural Dynamics Open
Usually, within stochastic framework, a testing dataset is used to evaluate the approximation error between a surrogate model (e.g., a polynomial chaos expansion) and the exact model. We propose here another method to estimate the quality …
View article: Generalized Polynomial Chaos for robust modelling of Nonlinear Energy Sinks used to mitigate dynamic instabilities in braking systems
Generalized Polynomial Chaos for robust modelling of Nonlinear Energy Sinks used to mitigate dynamic instabilities in braking systems Open
This paper investigates the passive mitigation of a squeal noise problem in nonlinear dry friction systems with uncertain parameters by means of Nonlinear Energy Sinks (NESs). The study is based on a mechanical system which is composed of …
View article: A model reduction method to analyze the dynamic behavior of vibrating structures with uncertain parameters
A model reduction method to analyze the dynamic behavior of vibrating structures with uncertain parameters Open
International audience
View article: Robust optimization of nonlinear energy sinks used for dynamic instabilities mitigation of an uncertain friction system
Robust optimization of nonlinear energy sinks used for dynamic instabilities mitigation of an uncertain friction system Open
References[1] Bergeot. B, Berger. S and Bellizzi. S, Mode coupling instability mitigation in friction systems by means of nonlinear energy sinks : numerical highlighting and local stability analysis, Journal of Vibration a…
View article: Stability analysis of a clutch system with uncertain parameters using sparse polynomial chaos expansions
Stability analysis of a clutch system with uncertain parameters using sparse polynomial chaos expansions Open
In vehicle transmission systems, frictional forces acting during the sliding phase of the clutch engagement may produce unwanted vibrations. The prediction of the stability of a clutch system remains however a laborious task, as the parame…
View article: Mitigation of friction-induced vibrations in braking systems:prediction of the mitigation limit
Mitigation of friction-induced vibrations in braking systems:prediction of the mitigation limit Open
In this paper, we investigate a problem of passive mitigation of friction-induced vibrations due to mode coupling instability in breaking systems. For this purpose, the well-known Hulten’s model is coupled to one Nonlinear Energy Sinks (NE…
View article: Mode coupling instability mitigation in friction systems by means of nonlinear energy sinks: Numerical highlighting and local stability analysis
Mode coupling instability mitigation in friction systems by means of nonlinear energy sinks: Numerical highlighting and local stability analysis Open
In this paper, we study the problem of passive control of friction-induced vibrations due to mode coupling instability in braking systems. To achieve that, the well-known two degrees of freedom Hultén’s model, which reproduces the typical …
View article: Stability analysis of a clutch system with multi-element generalized polynomial chaos
Stability analysis of a clutch system with multi-element generalized polynomial chaos Open
\n In the transmission systems of vehicles, unforced vibrations can be observed during the\n sliding phase of clutch engagement. These vibrations are due to frictional forces and may\n generate noise. Several studies have shown that the st…
View article: : ARP-4N rapport 1er septembre 2015
: ARP-4N rapport 1er septembre 2015 Open
Les nanosciences et nanotechnologies constituent un domaine en rapide évolution, toujours en expansionaprès son apparition peu avant les années 2000. Elles contribuent à l’ensemble des défis de l’ANR etimpactent, de manière plus ou moins d…