Narrow-band filter design of phononic crystals with periodic point defects via topology optimization
Designing multichannel narrow passband filters working at specified frequencies is very
challenging because a narrow defect band with non-zero group velocity must be achieved …
challenging because a narrow defect band with non-zero group velocity must be achieved …
Harnessing post-buckling deformation to tune sound absorption in soft Helmholtz absorbers
Helmholtz resonator (HR) has always been an important part of artificial sound-absorbing
materials, most of which however cannot be tuned in real time and hence have a limited …
materials, most of which however cannot be tuned in real time and hence have a limited …
Pneumatic soft phononic crystals with tunable band gap
X Liu, N Chen, J Jiao, J Liu - International Journal of Mechanical Sciences, 2023 - Elsevier
Tuning the band gap by mechanically generating deformation of soft phononic crystals
provides an effective means to manipulate the propagation of acoustic waves. In this paper …
provides an effective means to manipulate the propagation of acoustic waves. In this paper …
[HTML][HTML] Electro-mechanical vibration control of functionally graded marine risers by a piezoelectric meta-structure design
F Liang, ZQ Chen - Applied Ocean Research, 2025 - Elsevier
In this paper, a novel electro-mechanical meta-riser structure is designed aiming to suppress
its vibration and wave propagation. The riser is made of porous functionally graded material …
its vibration and wave propagation. The riser is made of porous functionally graded material …
[HTML][HTML] Tunable buckling configurations via in-plane periodicity in soft 3D-fiber composites: Simulations and experiments
We study the buckling of soft 3D-fiber composites (FCs) with varying in-plane microstructure
periodicity. Through our experiments and simulations, we find that the out-of-plane buckling …
periodicity. Through our experiments and simulations, we find that the out-of-plane buckling …
[HTML][HTML] Finite elastic metasurface attachment for flexural vibration amplification
In this study, we propose a compact elastic metasurface structure that confines and amplifies
flexural vibration energy over an internal local area. The proposed structure utilizes the well …
flexural vibration energy over an internal local area. The proposed structure utilizes the well …
Higher-order elastic topological insulators with reconfigurable route and tunable corner states
G Zhang, W Yan, Y Gao - International Journal of Mechanical Sciences, 2024 - Elsevier
In recent years, topological insulators (TIs) have been introduced in classical wave systems
as a new type of quantum material, opening up new ways and approaches for manipulating …
as a new type of quantum material, opening up new ways and approaches for manipulating …
[HTML][HTML] Harnessing nonlocal effects for wave localization and multi-frequency rainbow trap** in periodic structures
This study introduces the concept of nonlocal effect into a monoatomic mass–spring periodic
structure, leading to unique characteristics of dispersion curves. Through the incorporation …
structure, leading to unique characteristics of dispersion curves. Through the incorporation …
[HTML][HTML] Phase change enabled high bandgap tunability in graphene-reinforced phononic crystals
Highly tunable bandgaps of phononic crystals are of great significance in practical
engineering applications. Solid-liquid transitions and graphene reinforcement are two …
engineering applications. Solid-liquid transitions and graphene reinforcement are two …
A new circular-maze-shaped phononic crystal with multiband and broadband vibration filtration feature: design and experiment
Here, the elastic wave dispersion characteristics of a new circular-maze-shaped (CMS)
phononic crystal are numerically and experimentally investigated. A parametric study is …
phononic crystal are numerically and experimentally investigated. A parametric study is …