| People | Locations | Statistics |
|---|---|---|
| Seuring, Stefan |
| |
| Nor Azizi, S. |
| |
| Pato, Margarida Vaz |
| |
| Kölker, Katrin |
| |
| Huber, Oliver |
| |
| Király, Tamás |
| |
| Spengler, Thomas Stefan |
| |
| Al-Ammar, Essam A. |
| |
| Dargahi, Fatemeh |
| |
| Mota, Rui |
| |
| Mazalan, Nurul Aliah Amirah |
| |
| Macharis, Cathy | Brussels |
|
| Arunasari, Yova Tri |
| |
| Nunez, Alfredo | Delft |
|
| Bouhorma, Mohammed |
| |
| Bonato, Matteo |
| |
| Fitriani, Ira |
| |
| Autor Correspondente Coelho, Sílvia. |
| |
| Pond, Stephen |
| |
| Okwara, Ukoha Kalu |
| |
| Toufigh, Vahid |
| |
| Campisi, Tiziana | Enna |
|
| Ermolieva, Tatiana |
| |
| Sánchez-Cambronero, Santos |
| |
| Agzamov, Akhror |
|
Vakakis, Alexander F.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Machine learning extreme acoustic non-reciprocity in a linear waveguide with multiple nonlinear asymmetric gatescitations
- 2022Exceeding the classical time-bandwidth product in nonlinear time-invariant systemscitations
- 2022Nonlinear targeted energy transfer: state of the art and new perspectivescitations
- 2021Modal energy exchanges in an impulsively loaded beam with a geometrically nonlinear boundary condition: computation and experimentcitations
- 2021Analysis of the non-periodic oscillations of a self-excited friction-damped system with closely spaced modescitations
- 2020Broadband non-reciprocity with robust signal integrity in a triangle-shaped nonlinear 1D metamaterialcitations
- 2020Energy transmission by impact in a system of two discrete oscillatorscitations
- 2017Numerical and experimental investigations of a rotating nonlinear energy sinkcitations
- 2014Interactions of propagating waves in a one-dimensional chain of linear oscillators with a strongly nonlinear local attachmentcitations
- 2011A time-domain nonlinear system identification method based on multiscale dynamic partitionscitations
- 2003Designing a Linear Structure with a Local Nonlinear Attachment for Enhanced Energy Pumpingcitations
Places of action
| Organizations | Location | People |
|---|
document
Broadband non-reciprocity with robust signal integrity in a triangle-shaped nonlinear 1D metamaterial
Abstract
In this paper, we propose and numerically study a nonlinear, asymmetric, passive metamaterial that achieves giant non-reciprocity with (i) broadband frequency operation and (ii) robust signal integrity. Previous studies have shown that nonlinearity and geometric asymmetry are necessary to break reciprocity passively. Herein, we employ strongly nonlinear coupling, triangle-shaped asymmetric cell topology, and spatial periodicity to break reciprocity with minimal frequency distortion. To investigate the nonlinear band structure of this system, we propose a new representation, namely a wavenumber–frequency–amplitude band structure, where amplitude-dependent dispersion is quantitatively computed and analyzed. Additionally, we observe and document the new nonlinear phenomenon of time-delayed wave transmission, whereby wave propagation in one direction is initially impeded and resumes only after a duration delay. Based on numerical evidence, we construct a nonlinear reduced-order model (ROM) to further study this phenomenon and show that it is caused by energy accumulation, instability, and a transition between distinct branches of certain nonlinear normal modes of the ROM. The implications and possible practical applications of our findings are discussed.
Topics
Search in FID move catalog