The acoustic black hole: A review of theory and applications

A Pelat, F Gautier, SC Conlon, F Semperlotti - Journal of Sound and …, 2020 - Elsevier
Abstract The Acoustic Black Hole (ABH) is a technique for passive vibration control that was
recently developed within the Structural Dynamics and Vibroacoustics communities. From a …

Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws

R Sun, S Zhou, L Cheng - Energy Conversion and Management, 2023 - Elsevier
With the increasing demand for clean and sustainable energy, self-powered technologies
based on environmental vibrations have attracted a lot of attention recently. Natural vibration …

A metamaterial consisting of an acoustic black hole plate with local resonators for broadband vibration reduction

J Deng, O Guasch, L Maxit, N Gao - Journal of Sound and Vibration, 2022 - Elsevier
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 …

A wave and Rayleigh–Ritz method to compute complex dispersion curves in periodic lossy acoustic black holes

J Deng, Y Xu, O Guasch, N Gao, L Tang… - Journal of Sound and …, 2023 - Elsevier
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 …

[HTML][HTML] Design and experimental investigation of V-folded beams with acoustic black hole indentations

N Gao, Z Wei, H Hou, AO Krushynska - The Journal of the Acoustical …, 2019 - pubs.aip.org
This paper proposes a strategy to broaden complete bandgap attenuating flexural and
longitudinal modes, and to shift them to lower frequencies by spatially folding designs …

Low-frequency enhancement of acoustic black holes via negative stiffness supporting

X Chen, J Zhao, J Deng, Y Jing, H Pu, J Luo - International Journal of …, 2023 - Elsevier
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 …

Elastic wave modulation of double-leaf ABH beam embedded mass oscillator

N Gao, X Guo, J Deng, B Cheng, H Hou - Applied Acoustics, 2021 - Elsevier
We present the double-leaf acoustic black hole beam embedded mass oscillator, and
discuss the different elastic waves modulation effects. Vibration transmission spectrum …

The ABH-based lattice structure for load bearing and vibration suppression

H Sheng, MX He, J Zhao, CT Kam, Q Ding… - International Journal of …, 2023 - Elsevier
Multifunctional 3D lattice structures with unconventional mechanical properties offer unique
material properties and broad applications in complex engineering environments. This …

Semi-analytical model of an acoustic black hole piezoelectric bimorph cantilever for energy harvesting

J Deng, O Guasch, L Zheng, T Song, Y Cao - Journal of Sound and …, 2021 - Elsevier
An acoustic black hole (ABH) beam termination can be achieved by decreasing its thickness
according to a power-law profile. Waves entering the ABH slow down and vibrational energy …

Sound radiation and non-negative intensity of a metaplate consisting of an acoustic black hole plus local resonators

J Deng, O Guasch, L Maxit, N Gao - Composite Structures, 2023 - Elsevier
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 …