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 …
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
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 …
vibrations. However, when the wavelength of the impinging bending waves on the ABH is …
Vibration attenuation of rotating disks via acoustic black holes
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 …
for vibration attenuation of thin-walled structures. However, up until now, no research has …
Bistable enhanced passive absorber based on integration of nonlinear energy sink with acoustic black hole beam
The nonlinear energy sink (NES) has a broader frequency bandwidth than the linear tuned-
mass-damper (TMD), making it more robust. However, the NES is only efficient in a narrow …
mass-damper (TMD), making it more robust. However, the NES is only efficient in a narrow …
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 …
Sound transmission loss of a honeycomb sandwich cylindrical shell with functionally graded porous layers
C Thongchom, T Jearsiripongkul, N Refahati… - Buildings, 2022 - mdpi.com
To examine the acousto-structural behavior of a sandwich cylindrical shell benefiting from
hexagonal honeycomb structures in its core and functionally graded porous (FGP) layers on …
hexagonal honeycomb structures in its core and functionally graded porous (FGP) layers on …
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 …
Broadband vibroacoustic reduction for a circular beam coupled with a curved acoustic black hole via nullspace method
J Deng, N Gao - International Journal of Mechanical Sciences, 2022 - Elsevier
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 …
mandatory to diminish the thickness of the host structure. Instead, ABHs are treated as …
A two-dimensional wave and Rayleigh–Ritz method for complex dispersion in periodic arrays of circular damped acoustic black holes
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 …
exhibit many surprising properties such as bandgap formation, scattering, topological edge …
Reconstructed Gaussian basis to characterize flexural wave collimation in plates with periodic arrays of annular acoustic black holes
While embedding acoustic black holes (ABHs) in plates has proved to be a lightweight and
useful solution for noise and vibration reduction, their potential for wave manipulation is only …
useful solution for noise and vibration reduction, their potential for wave manipulation is only …