Performance enhancement of a coupled magneto-mechanical harvester through impact
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Maity Sudipta , Ali Shaikh Faruque, Litak Grzegorz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 36 |
| Numer artykułu: | 073139 |
| Strony: | 1 - 23 |
| Impact Factor: | 3,3 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | G.L. was supported by the National Science Centre, Poland under the OPUS Call in the Weave program under Project No. 2023/51/I/ST8/02739 |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The narrow operational bandwidth inherent to linear systems severely limits their efficacy in real applications, especially with low-amplitude broadband excitations. This paper explores an impact-driven magneto-mechanical system, designed to improve broadband performance. The system is two coupled pendulums with tip magnets and intentional asymmetry. The asymmetry is introduced via a unilateral rigid wall constraint, which induces piecewise physical impacts. The system is modeled using an extended Lagrange formulation and analyzed through a semi-analytical Harmonic Balance (HB) framework. Unlike conventional studies that rely primarily on numerical integration, this work explicitly quantifies the amplitude transfer to sub-harmonic and super-harmonic components during impacts, mapping the system’s bifurca- tions and the emergence of strange attractors within chaotic regimes. This approach uniquely enables the mathematical reconstruction and decomposition of complex multi-fold phase synchronization loops, demonstrating that individual harmonic components maintain linear phase synchronization even as their synchronization gradients decrease at higher harmonic orders. Leveraging these nonlinear mechanisms, a multi-objective Genetic Algorithm (GA) is used to optimize geometric and stiffness parameters, expanding the half-power bandwidth by 218.8% without sacrificing the peak power output. Beyond energy harvesting, the proposed semi-analytical HB reconstruction and phase syn- chronization frameworks provide broadly applicable methodologies for characterizing strongly nonlinear coupled oscillators and advancing vibration-based structural health monitoring systems. |
