Tunable and active phononic crystals and metamaterials
Phononic crystals (PCs) and metamaterials (MMs) can exhibit abnormal properties, even far
beyond those found in nature, through artificial design of the topology or ordered structure of …
beyond those found in nature, through artificial design of the topology or ordered structure of …
Vibration and noise control using shunted piezoelectric transducers: A review
Among various strategies developed for the attenuation of noise and vibration in mechanical
structures, piezoelectric shunt dam**, which consists in connecting piezoelectric …
structures, piezoelectric shunt dam**, which consists in connecting piezoelectric …
Graded elastic metasurface for enhanced energy harvesting
In elastic wave systems, combining the powerful concepts of resonance and spatial grading
within structured surface arrays enable resonant metasurfaces to exhibit broadband wave …
within structured surface arrays enable resonant metasurfaces to exhibit broadband wave …
A hybrid elastic metamaterial with negative mass density and tunable bending stiffness
Achieving vibration and/or wave attenuation with locally resonant metamaterials has
attracted a great deal of attention due to their frequency dependent negative effective mass …
attracted a great deal of attention due to their frequency dependent negative effective mass …
Vibration suppression by mistuning acoustic black hole dynamic vibration absorbers
H Sheng, MX He, Q Ding - Journal of Sound and Vibration, 2023 - Elsevier
This paper presents a modified add-on strategy to reduce the transverse vibration of beam
structures using multiple acoustic black hole dynamic vibration absorbers (ABH-DVAs). The …
structures using multiple acoustic black hole dynamic vibration absorbers (ABH-DVAs). The …
Graded multifunctional piezoelectric metastructures for wideband vibration attenuation and energy harvesting
Unlike well-studied locally resonant (LR) metamaterials with a periodic array of identical
resonators,'graded'LR metamaterials consist of an array of resonators with a spatially …
resonators,'graded'LR metamaterials consist of an array of resonators with a spatially …
Topological rainbow trap** and acoustic energy amplification in two-dimensional gradient phononic crystals
In this work, we numerically and experimentally investigate topological rainbow trap** and
energy amplification of acoustic waves in a gradient phononic crystal (PC) structure. Thanks …
energy amplification of acoustic waves in a gradient phononic crystal (PC) structure. Thanks …
Three-dimensional quasi-zero-stiffness metamaterial for low-frequency and wide complete band gap
This paper presents a new class of locally resonant (LR) metamaterials with quasi-zero
stiffness (QZS) in three dimensions. The monolithic QZS property is achieved by optimizing …
stiffness (QZS) in three dimensions. The monolithic QZS property is achieved by optimizing …
[HTML][HTML] Experimental investigation of amplification, via a mechanical delay-line, in a rainbow-based metamaterial for energy harvesting
We experimentally demonstrate that a rainbow-based metamaterial, created by a graded
array of resonant rods attached to an elastic beam, operates as a mechanical delay-line by …
array of resonant rods attached to an elastic beam, operates as a mechanical delay-line by …
Broadening low-frequency bandgaps in locally resonant piezoelectric metamaterials by negative capacitance
This paper combines negative capacitance (NC) with inductance (L) to enlarge low-
frequency bandgap width in locally resonant piezoelectric metamaterials. The studied …
frequency bandgap width in locally resonant piezoelectric metamaterials. The studied …