Acoustic metamaterials, structured to produce anomalous reflection and refraction indices
that are not found in conventional materials, are gaining prominence in engineering …

Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

The advent of 3D printing brought about the possibilities of microlattice metamaterials as
advanced materials with the potentials to surpass the functionalities of traditional materials …

Many advanced physical properties can be realized by using well-designed acoustic
metamaterial (AM) structures, which have significant application value in engineering. In …

Acoustic black hole (ABH) indentations on plates are very efficient to reduce high frequency
vibrations. However, when the wavelength of the im**ing bending waves on the ABH is …

Sound-absorbing materials (SAMs) have attracted significant interest for more than a century
owing to their rich physical properties and extensive potential in acoustic engineering. This …

While acoustic black holes (ABHs) are well-known inefficient at low frequencies. However,
attaching periodic local resonators to form a metamaterial ABH (MMABH) plate could be …

A space‐shift phase‐coherent cancellation acoustic metasurface is developed, which can
achieve broadband low‐frequency sound absorption via ultra‐thin integrated structure …

Acoustic absorbers based on resonant cavities or porous materials have been extensively
investigated for develo** acoustic liners but still suffer from narrow working frequency …

This work designs a tunable acoustic composite metasurface, with porous material and a
modified microperforated panel (MPP) system. The broadband sound absorption …