Pentastable composite shell for energy harvesting
Artykuł w czasopiśmie
MNiSW
200
Lista 2024
| Status: | |
| Autorzy: | Kłoda Łukasz |
| Dyscypliny: | |
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| Rok wydania: | 2026 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 244 |
| Numer artykułu: | 113825 |
| Strony: | 1 - 36 |
| Scopus® Cytowania: | 0 |
| Bazy: | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | The work is financially supported by grant 2021/41/B/ST8/03190 from the National Science Centre, Poland. This research was funded in whole or in part by National Science Centre, Poland 2021/41/B/ST8/03190. For the purpose of Open Access, the author has applied a CC-BY public copyright license to any Author Accepted Manuscript (AAM) version arising from this submission. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| This paper investigates a thin-walled composite structure with an initial pseudo-conical configuration featuring opposite curvatures at the ends. Once clamped at its edge, the shell exhibits five distinct equilibrium states (I, I*, J, L, and S). The main motivation is to examine how pentastable configurations can be leveraged to maximize energy harvesting efficiency in variable vibrational environments. For energy harvesting application, a finite element simulation approach is introduced to determine the efficient location of Macro Fiber Composite (MFC) patches. The study investigates strain and stress distributions, modal analysis, and the effects of embedding various commercially available piezoelectric patch sizes on equilibrium configurations. Experimental tests are conducted on a prototype equipped with multiple strain gauges and an MFC patch. These tests investigates wideband frequency response curves (), which are used to construct electromechanical coupling coefficients for various initial deformations of the harvester. The structure is capable of undergoing large amplitude oscillations, including multiple snap-through events between equilibria. To better characterize regimes of motion, spectrograms applied to strain gauge time series data are proposed. The voltage recovered from the MFC patch is processed to obtain instantaneous power and RMS power curves. Finally, a maximum RMS power map for the pentastable cantilever harvester is developed and discussed. |
