Structured Assembly of Acoustic Materials for Mitigating Low-Frequency Broadband Aircraft Noise

Authors

Keywords:

Broadband, Low-frequency, Metamaterials, Aircraft Noise

Abstract

The challenge of attenuating low-frequency broadband noise is crucial in aeronautics, ground transportation, and construction industries, necessitating innovative solutions for improved acoustic control. This paper introduces a novel thin acoustic metamaterial design aimed at enhancing broadband noise attenuation at low frequencies. The design comprises structured metamaterials arranged in series and parallel within a fiberglass layer, optimizing resonant frequencies to create a band that maximally attenuates low-frequency noise. Using COMSOL Multiphysics finite element methods, the performance of this metamaterial was assessed, demonstrating wide frequency band noise attenuation at low frequencies and confirming its efficacy.

Additional Files

Published

2024-05-12

How to Cite

1.
KONE TC, Ghinet S, Panneton R, Grewal A. Structured Assembly of Acoustic Materials for Mitigating Low-Frequency Broadband Aircraft Noise. Canadian Acoustics [Internet]. 2024 May 12 [cited 2024 Dec. 6];52(1). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/4153

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