Metamaterial invisibility of a corner target with proportional integral active control

JW Jiang, YZ Wang - Mechanics of Materials, 2024 - Elsevier
Wave invisibility in confined space has been proved practical significance in mechanical
engineering and military fields. In this work, a flexural wave cloak of a corner-domain target …

Fast active thermal cloaking through PDE-constrained optimization and reduced-order modelling

C Sinigaglia, DE Quadrelli… - Proceedings of the …, 2022 - royalsocietypublishing.org
In this paper, we show how to efficiently achieve thermal cloaking from a computational
standpoint in several virtual scenarios by controlling a distribution of active heat sources. We …

Smart hybrid active/semi-active distributed structural acoustic control of thin-and thick-walled piezo-sandwich bimorph spherical shell cloaks

SM Hasheminejad, A Kasaeisani - Journal of Sound and Vibration, 2023 - Elsevier
A novel three dimensional underwater smart piezo-sandwich spherical shell cloak is
designed and analyzed based on the hybrid active/semi-active distributed structural acoustic …

Manipulation of acoustic wave scattering from cylindrical shells using a coating of FG magneto-electro-elastic composite materials: Active acoustic cloaking

A Tarkashvand, K Daneshjou - Wave Motion, 2023 - Elsevier
Acoustically cloaking an object from view of a system that uses acoustic waves for detection
is an attractive and practical capability. The aim of the current investigation is to hide a steel …

A novel smart hybrid multimorph piezoelectric spherical shell cloak for broadband near-perfect underwater acoustic camouflage applications

SM Hasheminejad, A Kasaeisani - Scientific Reports, 2024 - nature.com
Non-visual auditory camouflage plays a major role in the art of underwater deception. In this
work, a hybrid active/semi-active omnidirectional cloaking shell structure composed of …

[HTML][HTML] A generative design framework for passive thermal control with macroscopic metamaterials

MC Ignuta-Ciuncanu, P Tabor… - Thermal Science and …, 2024 - Elsevier
Efficient thermal management holds pivotal significance in the rapidly evolving realm of
energy-dense applications, notably in high-performance computing, where the push toward …

A novel design scheme for acoustic cloaking of complex shape based on region partitioning and multi-origin coordinate transformation

P Li, F Yang, P Wang, J Zhao, Z Zhong - Applied Mathematics and …, 2022 - Springer
Acoustic cloaking is an important application of acoustic metamaterials. This article
proposes a novel design scheme for acoustic cloaking based on the region partitioning and …

Approach to active control of scattered sound field from underwater targets

M Mei, L Zhang, B An, J Li - The Journal of the Acoustical Society of …, 2023 - pubs.aip.org
Active control of scattered sound fields is of great significance for the acoustic stealth of
underwater targets. In this paper, we propose an approach to control the target scattered …

Multilayer acoustic invisibility cloak based on composite lattice

M Zaremanesh, A Bahrami - Scientific Reports, 2022 - nature.com
A concentric cylindrical cloak is showed here to achieve the acoustic cloaking phenomenon.
The introduced structure consists of MNE layers and water in MNE substrate in the MHz …

Two-Dimensional Distributed Transmission-Line Models for Broadband Full-Tensor Anisotropic Acoustic Metamaterials Based on Transformation Acoustics

T Nagayama, A Toshima, S Fukushima, T Watanabe - Crystals, 2022 - mdpi.com
We propose the design method for broadband acoustic metamaterials based on the concept
of transformation acoustics. Two-dimensional distributed transmission-line (TL) models for …