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Optimizing acoustic liner conditions for noise control: A study of flexible components and restraint conditions

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  • Afzal, Muhammad
  • Ahmed, Naveed
  • Safdar, Muhammad
  • Kurkcu, Harun

Abstract

The current study introduces a unique strategy by incorporating flexible components with diverse ring conditions at the interfaces of the chamber containing liner conditions. The main focus is on coupling radiating modes with structure-borne modes of flexible components and localized modes in the liners. To model the acoustic responses of duct regions and membrane discs at the liner interfaces, the study employs the mode-matching method and Galerkin formulation. Additionally, the proposed methodology is useful for analyzing the scattering characteristics of microperforated panels in the guiding structure. The accuracy of truncated solutions is demonstrated through the reconstruction of matching conditions and enforcement of conservation laws. The results highlight the effectiveness of restraint-type connecting conditions and microperforated membranes in attenuating sound performance. The article provides valuable insights into the design and performance optimization of acoustic liners in diverse physical conditions, contributing to advancements in noise control technology for various engineering applications.

Suggested Citation

  • Afzal, Muhammad & Ahmed, Naveed & Safdar, Muhammad & Kurkcu, Harun, 2024. "Optimizing acoustic liner conditions for noise control: A study of flexible components and restraint conditions," Chaos, Solitons & Fractals, Elsevier, vol. 185(C).
    • Handle: RePEc:eee:chsofr:v:185:y:2024:i:c:s096007792400643x
    DOI: 10.1016/j.chaos.2024.115091
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    References listed on IDEAS

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    1. Afzal, Muhammad & Alkinidri, Mohammed Omar & Safdar, Muhammad & Bilal, Hazrat, 2023. "On the scattering of cylindrical elastic shell having trifurcation and structural variations at interfaces," Chaos, Solitons & Fractals, Elsevier, vol. 175(P1).
    2. Afzal, Muhammad & Nawaz, Rab & Ullah, Aasim, 2016. "Attenuation of dissipative device involving coupled wave scattering and change in material properties," Applied Mathematics and Computation, Elsevier, vol. 290(C), pages 154-163.
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