Periodic solutions and frequency lock-in of vortex-induced vibration energy harvesters with nonlinear stiffness
Artykuł w czasopiśmie
MNiSW
200
Lista 2024
| Status: | |
| Autorzy: | Li Zhiyuan, Zhang Huirong, Litak Grzegorz, Zhou ShengXi |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2024 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 568 |
| Numer artykułu: | 117952 |
| Strony: | 1 - 21 |
| Impact Factor: | 4,3 |
| Web of Science® Times Cited: | 14 |
| Scopus® Cytowania: | 17 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This work was supported by the National Key R&D Program of China (Grant No. 2022YFB2603200), the National Natural Science Foundation of China (Grant No. 52161135106), and the Fundamental Research Funds for the Central Universities (Grant No. D5000230099). GL was supported by the National Science centre, Poland under the project SHENG-2, No. 2021/40/Q/ST8/00362. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The phenomenon of amplitude jump usually means the presence of multi-solution ranges and unstable periodic solutions, which has not been fully explored in the field of vortex-induced vibration energy harvesting. In this study, semi-analytical periodic solutions of vortex-induced vibration energy harvesters (VIVEHs) are obtained using the incremental harmonic balance method, and their stabilities are determined via the Floquet theory. It is found that the VIVEH with linear stiffness and those with three-order nonlinear stiffness have four saddle-node bifurcation points and two multi-solution ranges, which leads to the occurrence of amplitude jumps. The hardening effect can shift frequency lock-in regions to higher wind speeds, thus increasing the aerodynamic forces, and realizing wide wind speed bandwidths and high voltage outputs. The wind tunnel experiments verify the accuracy of theoretical calculations, the occurrence of amplitude jump phenomena, and the existence of multi-solution ranges. The VIVEH with nonlinear stiffness experimentally reached a maximum voltage of 9.87 V, and a frequency lock-in region of 2.27–5.36 m/s. |
