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476 results on '"Buscarino, Arturo"'

7. NASA DART mission: A preliminary mathematical dynamical model and its nonlinear circuit emulation

Author

Buscarino Arturo, Famoso Carlo, Fortuna Luigi, and La Spina Giuseppe

Subjects
orbital dynamics, multistability, nonlinear dynamics, analog/digital circuit, Engineering (General). Civil engineering (General), TA1-2040
Abstract

On September 22, 2022, a spacecraft, designed by the Double Asteroid Redirection Test (DART) team, successfully attempted to deflect the orbit of the asteroid Dimorphos, which together with Didymos, constitutes a binary system of near-Earth asteroids orbiting around the Sun. The effect of the impact of the spacecraft was to shorten the orbit of Dimorphos of about 33 min with respect to the original one. In this communication, a simple nonlinear circuit emulator based on a mathematical model allowing the emulation of the DART mission behavior is presented. The modeling is approached referring to the Kepler problem that leads to a highly nonlinear dynamical model. The problem is approached numerically, by using appropriate integration algorithms for both the two-body and three-body formulations of the problem, and experimentally, by means of an analog/digital electronic circuit emulator of the system that allows us to realize faster and qualitative more efficient experiments.

Published
2023
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15. Jump resonance in the driven Chua's circuit to design frequency selective devices.

Author

Buscarino, Arturo, Famoso, Carlo, and Fortuna, Luigi

Subjects
*SYSTEMS theory, *NONLINEAR systems, *RESONANCE, *DETECTORS, *POSSIBILITY
Abstract

The onset of jump resonance in the driven Chua's circuit is deeply described in this paper, further confirming the role of Chua's circuit in nonlinear circuits and systems theory. The study of the conditions under which this peculiar behavior occurs is based on the possibility of obtaining a Lur'e representation of the driven Chua's circuit and applying the describing function approach. Design considerations to select the Chua's circuit parameters in order to shape the jump resonance features are given, providing the nonlinear core for highly selective frequency drift sensors. [ABSTRACT FROM AUTHOR]

Published
2024
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18. Multijump Resonance with Chua’s Circuit

Author

Bucolo, Maide, Buscarino, Arturo, Famoso, Carlo, Fortuna, Luigi, Frasca, Mattia, Lacarbonara, Walter, editor, Balachandran, Balakumar, editor, Ma, Jun, editor, Tenreiro Machado, J. A., editor, and Stepan, Gabor, editor

Published
2020
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36. Synchronization of two Rossler systems with switching coupling

Author

Frasca, Mattia, Buscarino, Arturo, Branciforte, Marco, Fortuna, Luigi, and Sprott, Julien Clinton

Subjects
Nonlinear Sciences - Chaotic Dynamics
Abstract

In this paper, we study a system of two Rossler oscillators coupled through a time-varying link, periodically switching between two values. We analyze the system behavior with respect to the frequency of the switching. By applying an averaging technique under the hypothesis of a high switching frequency, we find that although each value of the coupling does not produce synchronization, switching between the two at a high frequency stabilizes the synchronization manifold. However, we also find windows of synchronization below the value predicted by this technique, and we develop a master stability function to explain the appearance of these windows. Spectral properties of the system are a useful tool for understanding the dynamical properties and the synchronization failure in some intervals of the switching frequency. Numerical and experimental results in agreement with the analysis are presented., Comment: 11 Pages, 11 figures

Published
2015

37. Remote and Relay Synchronization

Author

Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, Fortuna, Luigi, Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, and Fortuna, Luigi

Published
2018
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39. Cluster Synchronization

Author

Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, Fortuna, Luigi, Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, and Fortuna, Luigi

Published
2018
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40. Introduction

Author

Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, Fortuna, Luigi, Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, and Fortuna, Luigi

Published
2018
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41. Global Synchronization

Author

Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, Fortuna, Luigi, Frasca, Mattia, Gambuzza, Lucia Valentina, Buscarino, Arturo, and Fortuna, Luigi

Published
2018
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42. Chimera states in time-varying complex networks

Author

Buscarino, Arturo, Frasca, Mattia, Gambuzza, Lucia Valentina, and Hovel, Philipp

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems, Nonlinear Sciences - Chaotic Dynamics
Abstract

Chimera states have been recently found in a variety of different coupling schemes and geometries. In most cases, the underlying coupling structure is considered to be static, while many realistic systems display significant temporal changes in the pattern of connectivity. In this work, we investigate a time-varying network made of two coupled populations of Kuramoto oscillators, where the links between the two groups are considered to vary over time. As a main result, we find that the network may support stable, breathing and alternating chimera states. We also find that, when the rate of connectivity changes is fast, compared to the oscillator dynamics, the network may be described by a low-dimensional system of equations. Unlike in the static heterogeneous case, the onset of alternating chimera states is due to the presence of fluctuations, which may be induced either by the finite size of the network or by large switching times.

Published
2014
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47. A Memristor-Based Cell for Complexity

Author

Buscarino, Arturo, Corradino, Claudia, Fortuna, Luigi, Frasca, Mattia, Pham, Viet-Thanh, Ghione, Giovanni, Series Editor, Asinari, Pietro, Series Editor, Ridolfi, Luca, Series Editor, Carrera, Erasmo, Series Editor, Canuto, Claudio, Series Editor, Iazzi, Felice, Series Editor, Acquaviva, Andrea, Series Editor, Corinto, Fernando, editor, and Torcini, Alessandro, editor

Published
2019
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