In this letter, it is suggested to attach acoustic black holes (ABHs) on a base beam with
gradient parameters for wave attenuation in ultrawide bands. Three types of metabeams …

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

In this work we first propose a wave and Rayleigh–Ritz method (WRRM) to analyze the
vibrations of periodic systems. It is well-known that one of the main difficulties of the …

Acoustic black holes (ABHs) attract increasing attention in the field of vibration suppression,
sound radiation control and energy harvesting. Though the ABH effect usually works well in …

Acoustic black holes (ABHs) achieved by thinning structural thickness following a power-law
profile have shown fantastic applications in vibration and noise suppression, energy …

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 …

This paper first suggests a composite structure with periodic additive acoustic black holes
(ABH) to absorb vibrations from plates. Different from conventional embedded ABHs, this …

Add-on acoustic black holes (ABHs) tend to be popular in recent years because it is not
mandatory to diminish the thickness of the host structure. Instead, ABHs are treated as …

In this work we address the study of continuum models of periodic sonic black holes (SBHs)
at duct terminations. A conventional SBH combines a decreasing power-law profile with a …

Two-dimensional arrays of circular acoustic black holes (ABHs) on plates are known to
exhibit many surprising properties such as bandgap formation, scattering, topological edge …