Guidance of the resonance energy flow in the mechanism of coupled magnetic pendulums
Ładowanie...
Data
2022
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Elsevier
Abstrakt
This paper presents a methodology of controlling the resonance energy exchange in mechanical
system consisting of two weakly coupled magnetic pendulums interacting with the magnetic field
generated by coils placed underneath. It is shown that properly guided magnetic fields can
effectively change mechanical potentials in a way that the energy flow between the oscillators
takes the desired direction. Studies were considered by using a specific set of descriptive functions
characterizing the total excitation level, its distribution between the pendulums, and the phase
shift. The developed control strategies are based on the observation that, in the case of antiphase
oscillation, the energy is moving from the pendulum subjected to the repelling magnetic field, to
the oscillator under the attracting field. In contrast, during the inphase oscillations, the energy
flow is reversed. Therefore, closed-loop controller requires only the information about phase shift,
which is easily estimated from dynamic state signals through the coherency index. Advantage of
suggested control strategy is that the temporal rate of inputs is dictated by the speed of beating,
which is relatively slow compared to the carrying oscillations.
Opis
Słowa kluczowe
resonance energy exchange, magnetic pendulums, beating control, coupled oscillators, nonlinear dynamics, magnetic field, rezonansowa wymiana energii, wahadła magnetyczne, kontrola bicia, sprzężone oscylatory, dynamika nieliniowa, pole magnetyczne
Cytowanie
Pilipchuk Valery N., Polczyński K., Bednarek M., Awrejcewicz J., Guidance of the resonance energy flow in the mechanism of coupled magnetic pendulums. W: Mechanism and Machine Theory Vol. 176, Elsevier 2022, pages 1-22, ISSN 0094-114X, doi.org/10.1016/j.mechmachtheory.2022.105019