Physics of surface vibrational resonances: pillared phononic crystals, metamaterials, and metasurfaces

Y Jin, Y Pennec, B Bonello, H Honarvar… - Reports on progress …, 2021 - iopscience.iop.org
The introduction of engineered resonance phenomena on surfaces has opened a new
frontier in surface science and technology. Pillared phononic crystals, metamaterials, and …

Inertial amplification band-gap generation by coupling a levered mass with a locally resonant mass

A Banerjee, S Adhikari, MI Hussein - International Journal of Mechanical …, 2021 - Elsevier
Inertial amplification has been utilized in phononic media as a mechanism for the generation
of large band gaps at low subwavelength frequencies. A unique feature in an inertial …

Merging bragg and local resonance bandgaps in perforated elastic metamaterials with embedded spiral holes

X Tian, W Chen, R Gao, S Liu - Journal of Sound and Vibration, 2021 - Elsevier
Perforated elastic metamaterials (EMMs) comprising periodic distribution of holes have
recently attracted growing attention due to relatively simple fabrication process and unusual …

Design of one-dimensional acoustic metamaterials using machine learning and cell concatenation

RT Wu, TW Liu, MR Jahanshahi… - Structural and …, 2021 - Springer
Metamaterial systems have opened new, unexpected, and exciting paths for the design of
acoustic devices that only few years ago were considered completely out of reach. However …

Topology optimization of periodic barriers for surface waves

Z Liu, HW Dong, GL Yu - Structural and Multidisciplinary Optimization, 2021 - Springer
Dispersion engineering is always the important topic in the field of artificial periodic
structures. In particular, topology optimization of composite structures with expected …

基于人工神经网络的声子晶体逆向设计

曹蕾蕾, 朱旺, 武建华, 张传增 - 力学学报, 2021 - lxxb.cstam.org.cn
声子晶体是一种人工周期性复合材料, 其带隙特性使其在减振, 隔声, 滤波和声学功能器件等领域
具有潜在的应用价值. 如何准确操纵声波和机械波是声子晶体设计的主要挑战 …

Phononic band gap of a quarter-wave stack for enhanced piezoelectric energy harvesting

YC Shin, H Yoon, SH Jo, W Choi, CS Park… - International Journal of …, 2021 - Elsevier
Extraordinary phenomenon (eg, band gap) exhibited by a phononic crystal (PnC) has
recently been incorporated into piezoelectric energy harvesting (PEH) as a means to amplify …

Phononic band gap optimization in truss-like cellular structures using smooth P-norm approximations

L Quinteros, V Meruane, EL Cardoso - Structural and Multidisciplinary …, 2021 - Springer
The emergence of additive manufacturing and the advances in structural optimization have
boosted the development of tailored cellular materials. These modern materials with …

Enabling novel dispersion and topological characteristics in mechanical lattices via stable negative inertial coupling

H Al Ba'ba'a, X Zhu, Q Wang - Proceedings of the …, 2021 - royalsocietypublishing.org
Mechanical topological insulators have enabled a myriad of unprecedented characteristics
that are otherwise not conceivable in traditional periodic structures. While rich in dynamics …

Spectral extended finite element method for band structure calculations in phononic crystals

EB Chin, AA Mokhtari, A Srivastava… - Journal of Computational …, 2021 - Elsevier
In this paper, we compute the band structure of one-and two-dimensional phononic
composites using the extended finite element method (X-FEM) on structured higher-order …