Incorporating extended neck Helmholtz resonators into an advanced multi-degree of freedom acoustic metamaterial for low-frequency, broadband acoustic absorption

Jiayu Wang, Gareth J. Bennett · Elsevier BV · 2025

An advanced multi-degree-of-freedom acoustic metamaterial is designed by incorporating extended neck Helmholtz resonators to target low-frequency, broadband sound absorption.

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Plain English summary

The record concerns an acoustic metamaterial that uses Helmholtz resonators with an extended neck. The goal stated in the title is low-frequency, broadband acoustic absorption. It also indicates the metamaterial is “advanced” and has multiple degrees of freedom. No abstract text is provided, so specific design details, performance metrics, and validation methods are not available from the provided information.

Why this matters

Not stated in the provided text; novelty relative to prior work cannot be determined without an abstract or additional details. No evidence is provided about prototyping, field testing, or commercialization.

Key findings

  • Design incorporates extended neck Helmholtz resonators.
  • Metamaterial is multi-degree-of-freedom.
  • Target performance is low-frequency, broadband acoustic absorption.

Limitations

The abstract is empty, so there is no information on methods (e.g., simulation vs. experiment), quantitative results, fabrication approach, or claimed novelty.

Publication

Publisher
Elsevier BV
Publication date
September 1, 2025
Research type
Paper
License
https://www.elsevier.com/tdm/userlicense/1.0/

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Method note: Summaries and ratings on this page are generated by AI from the abstract only. Read the original paper for full context. · Model: gpt-5.4-nano-2026-03-17