Nonlinear dynamics of a quasizero energy harvester forced by flow and kinematic excitations
Artykuł w czasopiśmie
MNiSW
70
Lista 2024
| Status: | |
| Autorzy: | Margielewicz Jerzy, Gąska Damian, Bucki Sławomir, Yurchenko Daniil, Litak Grzegorz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | Pt 3 |
| Wolumen/Tom: | 200 |
| Numer artykułu: | 117148 |
| Strony: | 1 - 32 |
| Impact Factor: | 5,6 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was funded by the National Science Centre, Poland under the OPUS call in the Weave programme under the project no. 2023/51/I/ST8/02739. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 5 września 2025 |
| Abstrakty: | angielski |
| The paper proposes a novel design of a high-efficiency nonlinear energy harvester that benefits from the synergy between a quasi-zero stiffness system and flow-induced excitations. We demonstrate that this innovative approach enables improved adaptability and energy output. The harvester consists of a cantilever beam in a flag-like configuration subjected to both air-flow and kinematic excitations. In the wake galloping scenario, the variable lift force generated behind a fixed bluff body interacts with the tail-like cantilever beam. Using finite element modeling, we identified the lift force across a wide spectrum of air velocities and incorporated it as an excitation in a dimensionless mathematical model. Subsequently, vibrations of the cantilever beam, leading to the generation of electromotive force in an attached piezoelectric element. The system's displacement and voltage output responses were analyzed using nonlinear dynamics tools. An important advantage of this design is its tunability – by adjusting the elastic elements, the potential function can be configured for optimal performance. Key findings also concern the behavior of the system in chaotic and periodic motion zones and their impact on efficiency. We used tools such as the Lyapunov exponent, bifurcation diagrams, and Poincare sections to analyze nonlinear dynamics. We also identified transient chaos and periodic, chaotic, and quasi-periodic solutions to determine their impact on the performance of the system. The study further explores coexisting solutions and evaluates the effectiveness of the system under different types of excitation, both individually and together. The results demonstrate that the harvester maintains high efficiency even at low excitation levels, highlighting its potential for practical applications. |
