Zobrazeno 1 - 10
of 720
pro vyhledávání: '"VAKAKIS, A. F."'
We present a systematic and rigorous analytical approach, based on the transfer matrix methodology, to study the existence, evolution, and robustness of subwavelength topological interface states in practical multilayered vibroacoustic phononic latti
Externí odkaz:
http://arxiv.org/abs/2410.02922
Beyond classical Bragg diffraction, we report on new sub-Bragg phenomena to achieve enhanced sound wave tunability in the low-frequency range in a multilayered acoustic metamaterial system. Remarkably, we reveal and study the formation of genuinely s
Externí odkaz:
http://arxiv.org/abs/2410.01178
This study investigates a vibroacoustic phononic metamaterial system composed of repeated monolayered membrane-air cavity unit-cells to assess its efficacy in controlling sound waves. Assuming low-frequency axisymmetric modes, the coupled membrane-ca
Externí odkaz:
http://arxiv.org/abs/2408.09660
Autor:
Tempelman, Joshua R., Weidemann, Tobias, Flynn, Eric B., Matlack, Kathryn H., Vakakis, Alexander F.
Clusters of wave-scattering oscillators offer the ability to passively control wave energy in elastic continua. However, designing such clusters to achieve a desired wave energy pattern is a highly nontrivial task. While the forward scattering proble
Externí odkaz:
http://arxiv.org/abs/2402.17816
Autor:
Agaoglou, Makrina, Feckan, Michal, Pospisil, Michal, Rothos, Vassilis M., Vakakis, Alexander F.
Publikováno v:
Axioms 2018, 7(4), 69
In this work, we study the in-plane oscillations of a finite lattice of particles coupled by linear springs under distributed harmonic excitation. Melnikov-type analysis is applied for the persistence of periodic oscillations of a reduced system.
Externí odkaz:
http://arxiv.org/abs/2401.14227
The dissipative capacity as quantified by the nonlinear bandwidth measure of impulsively loaded primary structures (PSs) coupled to particle impact dampers (PIDs) is assessed. The considered PIDs are designed by initially placing different numbers of
Externí odkaz:
http://arxiv.org/abs/2311.06259
This work is a study of acoustic non-reciprocity exhibited by a passive one-dimensional linear waveguide incorporating two local strongly nonlinear, asymmetric gates. Two local nonlinear gates break the symmetry and linearity of the waveguide, yieldi
Externí odkaz:
http://arxiv.org/abs/2302.01746
On-chip phononic circuits tailor the transmission of elastic waves, which can couple to electronic and photonic systems, enabling new signal manipulation capabilities. Phononic circuits rely on waveguides that transmit elastic waves within desired fr
Externí odkaz:
http://arxiv.org/abs/2301.11590
We propose a method for manipulating wave propagation in phononic lattices by employing local vibro-impact (VI) nonlinearities to \textit{scatter} energy across the underling linear band structure of the lattice, and \textit{transfer} energy from low
Externí odkaz:
http://arxiv.org/abs/2301.05302
The characteristics of topologically protected wave propagation is typically predicted via the band structure of the primitive unit cell, using Berry curvature to predict localized interface or boundary states (as well as their degree of localization
Externí odkaz:
http://arxiv.org/abs/2210.11665