Electro-active acoustic liner for the reduction of turbofan noise - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Electro-active acoustic liner for the reduction of turbofan noise

Résumé

An electro-active acoustic liner is used to lower the noise emissions of a turbofan engine. The liner is composed of an array of electro-acoustic absorbers, covered by a wiremesh in order to protect the electrodynamic devices from the flow. The electro-active liner is operated using a pressure-based and current-driven control architecture, for the synthesis of specific acoustic impedances. Experiments are performed in the PHARE-2 test-rig at Ecole Centrale de Lyon, representative of a real turbofan engine at the laboratory scale. The obtained results underline the efficiency of the proposed concept on both tonal and broadband noise for a large range of operating points of the turbofan engine, including transsonic conditions.
Fichier non déposé

Dates et versions

hal-04273661 , version 1 (07-11-2023)

Identifiants

  • HAL Id : hal-04273661 , version 1

Citer

Edouard Salze, Emanuele de Bono, Kevin Billon, Martin Gillet, Maxime Volery, et al.. Electro-active acoustic liner for the reduction of turbofan noise. Forum Acusticum, Sep 2023, Torino, Italy. ⟨hal-04273661⟩
19 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More