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Forum Acusticum 2026

8–12 Sept 2026
Europe/Vienna timezone

Session

A10.03/A23.06 Metamaterials and acoustic black holes in vibro-acoustics and air

A10.03/A23.06
11 Sept 2026, 09:00

Conveners

A10.03/A23.06 Metamaterials and acoustic black holes in vibro-acoustics and air: P477

  • Florian Toth (Institute of Mechanics and Mechatronics)
  • Wonju Jeon
  • Jae Yeun Lee

A10.03/A23.06 Metamaterials and acoustic black holes in vibro-acoustics and air: S476

  • Wonju Jeon
  • Florian Toth (Institute of Mechanics and Mechatronics)
  • Jae Yeun Lee

Presentation materials

There are no materials yet.

  1. 4049. Integrating Acoustic Black Holes into satellite assemblies for vibration reduction (FA2026/444)
    Jannik Krohn (Fraunhofer LBF)
    11/09/2026, 09:00
    A10 Materials and Metamaterials

    Vibrations and shock loads pose challenges for aerospace components, potentially causing brittle fractures or electronic failures. Conventional countermeasures like dampers or absorbers add mass and reduce the available payload. Integrating Acoustic Black Holes (ABHs) offers a solution without additional mass.Within a structure, an ABH is a local geometric taper with a near-zero-thickness tip....

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  2. 4050. Sonic Black Holes for Enhancing Detection of Weak Signals (FA2026/36)
    Semere B. Gebrekidan (Institute of Mechanics and Mechatronic)
    11/09/2026, 10:40
    A10 Materials and Metamaterials

    Acoustic wave propagation inside sonic black holes (SBHs) is characterized by a decrease in the speed of sound and a gradual increase in pressure magnitude. Beyond their application as broadband sound absorbers, this paper explores their use as broadband pressure enhancement devices to improve the detection of weak signals by exploiting this gradual increase in pressure. We numerically and...

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  3. 4051. A Scattering Model of a Two-dimensional Sonic Black Hole (FA2026/535)
    Jie Deng (La Salle, Universitat Ramon Llull)
    11/09/2026, 11:00
    A10 Materials and Metamaterials

    Two-dimensional sonic black holes (2D SBHs) based on radially graded waveguide profiles have recently emerged as compact structures for wave focusing and energy trapping. In this work, we develop a semi-analytical scattering model that fully characterizes the total field response of under cylindrical- and plane-wave incidence. The SBH is treated as a metafluid with radially varying effective...

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  4. 4052. Increasing damping in composite panels with locally graded acoustic black holes (FA2026/584)
    Jan Boysen (Graz University of Technology)
    11/09/2026, 11:20
    A10 Materials and Metamaterials

    In aerospace engineering, primary structural components such as fuselage skins and engine cowlings must withstand rigorous dynamic loads and high-frequency vibrations while maintaining high thermal and mechanical stability. Traditional vibration mitigation often relies on auxiliary damping treatments that add parasitic mass, a critical disadvantage in weight-sensitive airframe design. This...

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  5. 4053. Optimizing passive acoustic filters in tubes using a tracking formulation (FA2026/86)
    Felix Huber (Institute of Mechanics and Mechatronic)
    11/09/2026, 11:40
    A10 Materials and Metamaterials

    Acoustic topology optimization is a broad topic, with one sub-group being structural optimization. In this discipline, we aim to distribute soundhard material to achieve specific acoustic properties, primarily through a density-based approach. One typical example is the transition zone between two waveguides, soundhard structures that restrict wave propagation and often enforce a...

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