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Laurent Maxit

6
Documents

Présentation

Today's innovative companies are using vibration and acoustic modelling to design their products faster and with high acoustic and vibration performance. However, a single universal vibro-acoustic method covering the whole frequency range of interest does not exist in general. The “low frequency” range has been addressed since a long time by deterministic element-based approaches like the finite element method. The “high frequency” range is addressed by the well-known Statistical Energy Analysis (SEA) method which describes the power flow exchanged by the different subsystems in a statistic sense and have shown successful applications, in particular for building modelling. Between these two frequencies ranges, applying these approaches is problematic because of high computational cost or non-respect of the model assumptions. Maxit’s research attempts to propose new modelling techniques for addressing the mid-frequency range. Some of ones like the Condensed Transfer Method (CTF) consists to extend the low frequency method to the mid-frequency whereas others like Statistical model Energy distribution Analysis (SmEdA) consists to extend high frequency SEA method to the mid-frequency. His developments are achieved keeping always in mind the industrial applications. These efforts have been focused on the modelling and the analysis of the sound radiation and transmission of cars or truck cabins in white or with trim, and shipbuilding structures under various excitations like turbulence. He was involved in two European projects (VISPER, SEANET) and his works had been supported by different industrial companies (RENAULT, FIAT, VOLVO TRUCK, TREVES, DCNS, DGA, AREVA, EDF). More recently, he brings an interest for the wave field synthesis for generating random turbulent pressure field and for the acoustic detection of pipe leak using beamforming technique. Research keywords: Vibro-acoustic, mid-frequency range, numerical methods, noise radiation and insulation, heavy fluid-structure interaction, turbulent boundary layer, wave field synthesis, beamforming

Publications

"daniel-juve"

Réponse vibro-acoustique d'une structure excitée par une Couche Limite Turbulente : Vers la prise en compte de l'évolution spatiale de la CLT

Marion Berton , Laurent Maxit , Daniel Juvé , Christian Audoly
Congrès Français d'Acoustique 2014, Apr 2014, Poitiers, France. Session Modèles et méthodes numériques en vibro-acoustique - p.1457
Communication dans un congrès hal-00994780v1
Image document

Prediction of flow-induced sound and vibration: On different methods for introducing the TBL excitation in the vibroacoustic model

Marion Berton , Laurent Maxit , Daniel Juvé , Christian Audoly
Acoutics 2013, Nov 2013, New-Delhi, India. p. 1281
Communication dans un congrès hal-00994543v1
Image document

Modélisation des spectres de pression pariétale en vue de déterminer la réponse vibro-acoustique d'une structure soumise à une couche limite turbulente

Marion Berton , Daniel Juvé , Laurent Maxit , Christian Audoly
CFM 2013 - 21ème Congrès Français de Mécanique, Aug 2013, Bordeaux, France
Communication dans un congrès hal-03439037v1

Different vibro-acoustic models for predicting the flow-induced structural vibration and re-radiated noise

Laurent Maxit , Marion Berton , Daniel Juvé , Christian Audoly
Flinovia, Nov 2013, Italy
Communication dans un congrès hal-01030854v1
Image document

Modélisation des spectres de pression pariétale en vue de déterminer la réponse vibro-acoustique d'une structure soumise à une couche limite turbulente

Marion Berton , Daniel Juvé , Laurent Maxit , Christian Audoly
Congrès Français de Mécanique 2013, Aug 2013, Bordeaux, France. pp.Berton
Communication dans un congrès hal-00994403v1