Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. Electro-active acoustic liner for the reduction of turbofan noise
 
conference paper

Electro-active acoustic liner for the reduction of turbofan noise

Salze, Edouard
•
De Bono, Emanuele
•
Billon, Kévin
Show more
Astolfi, Arianna
•
Asdrubali, Francesco
Show more
January 17, 2024
Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023
Forum Acusticum 2023, the 10th Convention of the European Acoustics Association

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 École 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.

  • Files
  • Details
  • Metrics
Type
conference paper
DOI
10.61782/fa.2023.0558
Author(s)
Salze, Edouard
De Bono, Emanuele
Billon, Kévin
Gillet, Martin
Volery, Maxime  
Collet, Manuel
Ouisse, Morvan
Lissek, Hervé  

EPFL

Mardjono, Jacky
Editors
Astolfi, Arianna
•
Asdrubali, Francesco
•
Shtrepi, Louena
Date Issued

2024-01-17

Publisher

European Acoustics Association

Published in
Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023
ISBN of the book

978-88-88942-67-4

Series title/Series vol.

Proceedings of Forum Acusticum

ISSN (of the series)

2221-3767

Start page

6057

End page

6060

Subjects

active liner

•

UHBR engine

•

modal decomposition

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTS2  
Event nameEvent acronymEvent placeEvent date
Forum Acusticum 2023, the 10th Convention of the European Acoustics Association

FA23

Torino, Italy

2023-09-11 - 2023-09-15

Available on Infoscience
February 7, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/246669
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés