Physics of surface vibrational resonances: pillared phononic crystals, metamaterials, and metasurfaces
The introduction of engineered resonance phenomena on surfaces has opened a new
frontier in surface science and technology. Pillared phononic crystals, metamaterials, and …
frontier in surface science and technology. Pillared phononic crystals, metamaterials, and …
[HTML][HTML] Wave propagation in elastic metamaterial beams and plates with interconnected resonators
In this work, new beam and plate metamaterials with interconnected local resonators are
proposed. This design promotes the splitting and coupling between transverse and …
proposed. This design promotes the splitting and coupling between transverse and …
[HTML][HTML] Designing a broad locally-resonant bandgap in a phononic crystals
S Li, Y Dou, T Chen, J Xu, B Li, F Zhang - Physics Letters A, 2019 - Elsevier
Producing a broad locally-resonant bandgap for low frequencies in a phononic crystals is a
challenging task, using conventional methods. In this paper, we describe the design of a …
challenging task, using conventional methods. In this paper, we describe the design of a …
Asymmetric topological state in an elastic beam based on symmetry principle
The symmetric propagation of topological edge states in two-dimensional (2D) mechanical
systems cannot be directly applied to a one-dimensional (1D) system such as a beam. In this …
systems cannot be directly applied to a one-dimensional (1D) system such as a beam. In this …
Tunable fluid-filled phononic metastrip
We study the propagation of Lamb waves in a one-dimensional tunable phononic metastrip
composed of a periodic sequence of hollow pillars that can be selectively filled with water …
composed of a periodic sequence of hollow pillars that can be selectively filled with water …
A review of phononic-crystal-based energy harvesters
A Bahrami, F Motaei - Progress in Energy, 2024 - iopscience.iop.org
Energy harvesting is a technique in which ambient energy is converted to useful energy to
prevent wastefulness. Piezoelectric energy harvesting is described as conversion of …
prevent wastefulness. Piezoelectric energy harvesting is described as conversion of …
Multi-branch subwavelength focusing of the lowest-order antisymmetric Lamb mode in a gradient-index phononic crystal
We demonstrate a metasurface design of a multi-branch dispersion that can converge plane
wave into a focal region at sub-wavelength scale. The design is based on overlap** the …
wave into a focal region at sub-wavelength scale. The design is based on overlap** the …
Experimental demonstration of a multichannel elastic wave filter in a phononic crystal slab
With the aim of selecting particular frequencies of interest and rejecting others, the
waveguiding and filtering properties of a two-dimensional phononic crystal slab are …
waveguiding and filtering properties of a two-dimensional phononic crystal slab are …
Investigation of surface acoustic wave propagation in composite pillar based phononic crystals within both local resonance and Bragg scattering mechanism regimes
D Zhang, J Zhao, B Bonello, F Zhang… - Journal of Physics D …, 2017 - iopscience.iop.org
We investigate the propagation of surface acoustic wave through phononic crystals (PCs)
that consist of composite pillars, comprising of a cap metallic pillar and a bottom epoxy pillar …
that consist of composite pillars, comprising of a cap metallic pillar and a bottom epoxy pillar …
[HTML][HTML] Generation of a mode in phononic crystal based on 1D/2D structures
The modification of phononic crystals by surface structuring allows obtaining a new
parameter describing the dynamics of the structure produced in this way. We have …
parameter describing the dynamics of the structure produced in this way. We have …