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Laurent Maxit

10
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

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SmEdA Vibro-Acoustic Modeling of a Trimmed Truck Cab in the Mid-Frequency Range

Laurent Maxit , Jean-Louis Guyader , Kerem Ege , Youssef Gerges , Ha Dong Hwang
10th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference, Jun 2018, Graz, Austria. pp.2018-01-1506, ⟨10.4271/2018-01-1506⟩
Communication dans un congrès hal-01829435v1
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Vibroacoustic modeling of a trimmed truck cab in the mid frequency range

Youssef Gerges , Ha Dong Hwang , Kerem Ege , Laurent Maxit , Céline Sandier
InterNoise 2015, Aug 2015, San Francisco, United States
Communication dans un congrès hal-01217633v1
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Modélisation du Comportement Vibroacoustique d’une Cabine de Camion en Moyenne Fréquence avec Prise en Compte des Habillages

Youssef Gerges , Ha Dong Hwang , Kerem Ege , Laurent Maxit , Céline Sandier
Congrès Français de Mécanique, CFM 2015, Aug 2015, Lyon, France
Communication dans un congrès hal-01217635v1
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A methodology for including the effect of dissipative treatments in the mid-frequency domain using SmEdA method - Comparison with experiments

Ha Dong Hwang , Kerem Ege , Laurent Maxit , Nicolas Totaro , Jean-Louis Guyader
12ème Congrès Français d'Acoustique, CFA2014, Apr 2014, Poitiers, France. pp.1425-1431
Communication dans un congrès hal-00993944v1
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Equivalent Damping Modeling In the Framework of SmEdA

Ha Dong Hwang , Kerem Ege , Laurent Maxit , Nicolas Totaro , Jean-Louis Guyader
XIX-th symposium VIbrations, SHocks & NOise (VISHNO), Jun 2014, Aix-en-Provence, France
Communication dans un congrès hal-00994171v1
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Mid Frequency Vibroacoustic Modeling of an Innovative Lightweight Cab - Floor/Cavity Interaction

Youssef Gerges , Kerem Ege , Laurent Maxit , Nicolas Totaro , Jean-Louis Guyader
XIX-th symposium VIbrations, SHocks & NOise (VISHNO), Jun 2014, Aix-en-Provence, France
Communication dans un congrès hal-00994175v1
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A methodology for including the effect of a damping treatment in the mid-frequency domain using SmEdA method

Ha Dong Hwang , Kerem Ege , Laurent Maxit , Nicolas Totaro , Jean-Louis Guyader
20th International Congress on Sound and Vibration, ICSV20, Jul 2013, Bangkok, Thailand. pp.#52
Communication dans un congrès hal-00823971v1
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Extension of SmEdA (Statistical model Energy distribution Analysis) to non-resonant transmission

Laurent Maxit , Kerem Ege , Nicolas Totaro , Jean-Louis Guyader
21st International Congress on Acoustics (ICA 2013), Jun 2013, Montréal, Canada. pp.065076, ⟨10.1121/1.4799564⟩
Communication dans un congrès hal-00823977v1