3 papers
nlin.CD2026
High-frequency tuning of internal resonance and targeted energy transfer in a Van der Pol oscillator coupled to a nonlinear energy sink
Somnath Roy, Mattia Coccolo, Sayan Gupta +1
Targeted energy transfer (TET) from a Van der Pol oscillator coupled to a nonlinear energy sink (NES) is investigated under the action of a high-frequency external drive, which tun…
nlin.CD2025
Collective vibrational resonance and mode selection in nonlinear resonator arrays
Somnath Roy, Mattia Coccolo, Anirban Ray +1
This article investigates how a uniform high frequency (HF) drive applied to each site of a weakly-coupled discrete nonlinear resonator array can modulate the onsite natural stiffn…
nlin.CD2025
Parametric Autoresonance with Time-Delayed Control
Somnath Roy, Mattia Coccolo, Miguel A. F. Sanjuán
We investigate how a constant time delay influences a parametric autoresonant system. This is a nonlinear system driven by a parametrically chirped force with a negative delay-feed…