Underwater acoustic metamaterials

Underwater acoustic metamaterials | National Science Review

This review summarizes the developments in underwater acoustic metamaterials over the past 20 years, which include underwater acoustic invisibility cloaking.

A review of underwater acoustic metamaterials for ... - Frontiers

This paper reviews the basic characteristics, development history of sound absorption, sound insulation decoupling, and underwater acoustic guided ...

Underwater acoustic metamaterials | National Science Review

Combined with theoretical analysis, additive manufacturing and engineering applications, acoustic metamaterials have demonstrated extraordinary capabilities, ...

Metamaterial Provides Underwater Stealth - Physics Magazine

A lightweight structure made of rubber and metal layers can provide an object with underwater acoustic stealth over a broad frequency range.

Ultrathin acoustic metamaterial as super absorber for broadband ...

Viscoelastic polymers such as rubber and polyurethane can well meet these two requirements, so they are widely used in underwater sound ...

Underwater acoustic absorbing metamaterials by material-structure ...

This paper proposes a material-structure-functionality collaborative optimization method that synthesizes the variational material parameters and topological ...

(PDF) Underwater acoustic metamaterials - ResearchGate

Fortunately, underwater acoustic metamaterials [18] have demonstrated excellent performance in terms of impedance matching with water ...

Acoustic properties of underwater acoustic metamaterials based on ...

A multi-physical field coupling model of underwater acoustic metamaterial is established by using finite element analysis.

Underwater metamaterial absorber with impedance-matched ...

The structured composite represents a new type of acoustic metamaterials that has high acoustic energy density and promises broad underwater ...

Bubble metamaterials for enhanced underwater acoustic sensing

We propose an easy-to-make acoustic sensing metamaterial device, which is made of a bubble architecture with a line defect.

Deep subwavelength hybrid metamaterial for low-frequency ...

... underwater sound absorption mechanism of underwater acoustic metamaterials. In this work, based on the traditional Helmholtz resonator (HR) ...

Tunable underwater acoustic metamaterials via quasi-Helmholtz ...

We report a lightweight tunable acoustic metamaterial with deep subwavelength thickness (e.g., λ / 300 ) and strong load-bearing capability for underwater ...

Acoustic metamaterials for underwater applications: homogenisation ...

Acoustic metamaterials are now widely recognised as promising candidates for such underwater coatings. The aim of this research is to study ...

Characterization of underwater acoustic metamaterials inspired by ...

Underwater acoustic metamaterials (AMMs) use engineered subwavelength structures to produce novel effective material properties to control water-borne ...

2D underwater acoustic metamaterials incorporating a combination ...

This paper develops an underwater acoustic metamaterial plate with potential advantages of low-frequency broadband sound absorption and high hydrostatic ...

Acoustic and elastic waves in metamaterials for underwater ...

A new type of acoustic metamaterial element is proposed that can be tuned to match the acoustic properties of water in the quasi-static regime. The element ...

Study on a gradient structure acoustic metamaterial for underwater ...

Exploitation in improving the performance of underwater acoustic detection is endless. Acoustic metamaterials (AMMs), which have been rapidly emerging in ...

Tunable underwater acoustic metamaterials via quasi-Helmholtz ...

We report a lightweight tunable acoustic metamaterial with deep subwavelength thickness (e.g., k=300) and strong load-bearing capability for underwater low- ...

Tunable underwater acoustic metamaterials via quasi-Helmholtz ...

Recent emergence of acoustic metamaterials provides a possibility to address this critical issue. ... In airborne acoustics, acoustic ...

Ultrathin acoustic metamaterial as super absorber for broadband ...

In this work, an ultrathin acoustic metamaterial formed by space-coiled water channels with a rubber coating is proposed for underwater ...