Helmholtz resonators with integrated vibrating cantilevers for low-frequency noise control in aircraft sidewalls

Publikationstyp
Doctoral Thesis
Date Issued
2025
Sprache
English
Author(s)
Hoppen, Hannah  
Advisor
Estorff, Otto von  
Referee
Gleine, Wolfgang  
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2025-07-09
Institute
Modellierung und Berechnung M-16(H)  
TORE-DOI
10.15480/882.16226
TORE-URI
https://hdl.handle.net/11420/59008
Lizenz
https://creativecommons.org/licenses/by/4.0/
Citation
Technische Universität Hamburg (2025)
Publisher DOI
https://doi.org/10.15480/882.16226
This work presents a novel resonator type combining a Helmholtz resonator and a cantilever to achieve two resonance frequencies. An analytical model for the Helmholtz resonator with integrated cantilever is developed in this thesis. This model allows accurate determination of the acoustic behavior of the resonator. When the resonator is integrated into an aircraft-like double wall the sound transmission loss is improved broadband in the low-frequency region.
Subjects
acoustics
Helmholtz resonator
mechanical absorber
low-frequency noise control
absorption
transmission loss
DDC Class
530: Physics
629.1: Aviation
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