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 …

[HTML][HTML] Review on research progress of mechanical metamaterials and their applications in vibration and noise control

YIN Jianfei, CAI Li, F Xin, X Yong, Y Haibin, Z Hongjia… - 力学进展, 2022 - lxjz.cstam.org.cn
Mechanical metamaterials are man-made composite structures or materials constructed
from artificial microstructural units with extraordinary static/dynamic properties not found in …

Broadband vibration suppression of rainbow metamaterials with acoustic black hole

W Gao, Z Qin, F Chu - International Journal of Mechanical Sciences, 2022 - Elsevier
Acoustic black hole (ABH) structures have been widely utilized for vibration suppression
owing to its tailored indentations according to a power-law profile. Compared with single …

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 …

Complex band structure and evanescent Bloch wave propagation of periodic nested acoustic black hole phononic structure

N Gao, B Wang, K Lu, H Hou - Applied Acoustics, 2021 - Elsevier
In this study, the periodic nested acoustic black hole phononic structure is presented, and
different complex band structures and corresponding evanescent Bloch wave propagation …

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 …

Vibration attenuation of rotating disks via acoustic black holes

R Zhu, Y Liu, N Bojja, Z Qin, F Chu - International Journal of Mechanical …, 2023 - Elsevier
Acoustic black holes (ABHs) have been found to exhibit desirable damping characteristics
for vibration attenuation of thin-walled structures. However, up until now, no research has …

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 …