Tailoring vibration suppression bands with hierarchical metamaterials containing local resonators

X Xu, MV Barnhart, X Li, Y Chen, G Huang - Journal of Sound and Vibration, 2019 - Elsevier
Vibration suppression at subwavelength scales is of great interest in acoustic and/or elastic
metamaterial engineering which has a wide range of potential applications requiring …

Investigation of novel 3D-printed diatomic and local resonant metamaterials with impact mitigation capacity

Y Zhou, L Ye, Y Chen - International Journal of Mechanical Sciences, 2021 - Elsevier
A novel dual local resonance metamaterial chain, at a low frequency regime (< 200 Hz), is
designed and fabricated using selective laser sintering technology for characterization of …

Multifunction acoustic modulation by a multi-mode acoustic metamaterial architecture

H Ahmed, R Ahmed, MM Indaleeb… - Journal of Physics …, 2018 - iopscience.iop.org
Exotic acoustical features, like acoustic transparency, ultrasonic beam focusing, acoustic
band gap and super lensing capability using a single metamaterial architecture is …

A sub-wavelength scale acoustoelastic sonic crystal for harvesting energies at very low frequencies (<∼ 1 kHz) using controlled geometric configurations

R Ahmed, D Madisetti… - Journal of Intelligent …, 2017 - journals.sagepub.com
Predictive design to control the geometric configurations of a novel sub-wavelength scale
energy scavenger to harvest energy at lower sonic frequencies (<∼ 1 kHz) is presented. In …

Hierarchical phononic crystals for filtering multiple target frequencies of ultrasound

KY Lee, W Jeon - Scientific Reports, 2020 - nature.com
Hierarchically structured phononic crystals are proposed for filtering multiple frequency
bands. The advantages of using structural hierarchy come from its multiscale periodicity and …

Spatial coding metastructure for single-sensor impact region recognition

T Jiang, T Zhou, X Wang, T Li, H Jin… - Smart Materials and …, 2024 - iopscience.iop.org
The rapid development of aircraft has created a strong demand for structural health
monitoring, but current methods that rely on multiple sensor fusion suffer from complex …

A Mass-In-Mass Metamaterial Design for Harvesting Energy at a Broadband Frequency Range

H Ahmed, R Ahmed - Energies, 2023 - mdpi.com
A novel deterministic method to harvest energy within a broadband frequency (0~ 25 kHz)
from a mass-in-mass metamaterial is presented herein. Traditional metamaterials are …

Understanding the Influence of Resonators on Frequency Band Gaps in Sonic Crystal Metamaterials

R Ahmed, H Ahmed - Smart Materials, Adaptive …, 2021 - asmedigitalcollection.asme.org
Acoustic metamaterials are artificially engineered smart structures designed to achieve
unusual properties that cannot be possible to obtain through natural materials. Hence, with …

Sound Attenuation of Membranes Loaded with Square Frame‐Shaped Masses

JS Chen, DW Kao - Mathematical Problems in Engineering, 2016 - Wiley Online Library
This study examines sound transmission of thin membranes with square frame‐shaped
masses. Numerical results indicate that multiple transmission loss peaks can be generated …

Influence of Resonator Configuration on Band Gap Range in Acoustic Metamaterials

R Ahmed, H Ahmed - 2021 12th International Conference on …, 2021 - ieeexplore.ieee.org
In recent years study acoustic metamaterials have found great attention due to its enormous
ability to guide and manipulate elastic wave in a medium. Frequency bandgap is a great …