The acoustic black hole: A review of theory and applications
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 …
recently developed within the Structural Dynamics and Vibroacoustics communities. From a …
Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws
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 …
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
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 …
vibrations. However, when the wavelength of the im**ing bending waves on the ABH is …
A wave and Rayleigh–Ritz method to compute complex dispersion curves in periodic lossy acoustic black holes
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 …
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 …
longitudinal modes, and to shift them to lower frequencies by spatially folding designs …
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 …
discuss the different elastic waves modulation effects. Vibration transmission spectrum …
Low-frequency enhancement of acoustic black holes via negative stiffness supporting
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 …
sound radiation control and energy harvesting. Though the ABH effect usually works well in …
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 …
material properties and broad applications in complex engineering environments. This …
Semi-analytical model of an acoustic black hole piezoelectric bimorph cantilever for energy harvesting
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 …
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
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 …
attaching periodic local resonators to form a metamaterial ABH (MMABH) plate could be …