Measurement techniques of the sensitivity functions to characterize the vibration response of panels under turbulent boundary layer excitation - Archive ouverte HAL Accéder directement au contenu
Chapitre D'ouvrage Année : 2018

Measurement techniques of the sensitivity functions to characterize the vibration response of panels under turbulent boundary layer excitation

Résumé

This study aims at developing an experimental method for characterizing the vibroacoustic behavior of panels excited by random pressure fields. Although the method would be theoretically applicable to any stationary in time and spatially homogeneous random process, and for points belonging to the acoustic medium or to the panel, the turbulent boundary layer excitation is considered in this study while considering the vibration response exclusively. The interest of industrials towards this excitation has grown over the years. The main reasons being that the associated test means (i.e. wind tunnel or in situ measurements) are hard to control and very expensive. They are also subjected to large variabilities between laboratories, which makes it hard to attest the validity of the measuring technique. The proposed method allows to experimentally characterize a panel under such an excitation by separating the contribution of the excitation from the vibration behavior of the panel.
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Dates et versions

hal-02121084 , version 1 (06-05-2019)

Identifiants

  • HAL Id : hal-02121084 , version 1

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Christophe Marchetto, Laurent Maxit, Olivier Robin, Alain Berry. Measurement techniques of the sensitivity functions to characterize the vibration response of panels under turbulent boundary layer excitation. Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II: A Focus on Measurement, Modeling, Simulation and Reproduction of the Flow Excitation and Flow Induced Response, 2018. ⟨hal-02121084⟩
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