Probability and output analysis of asymmetric bistable energyharvesters subjected to Gaussian white noise
Artykuł w czasopiśmie
MNiSW
70
Lista 2021
| Status: | |
| Autorzy: | Wang Wei, Cao Junyi, Bowen Chris R., Litak Grzegorz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2019 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 11 |
| Wolumen/Tom: | 134 |
| Numer artykułu: | 558 |
| Strony: | 1 - 16 |
| Impact Factor: | 3,228 |
| Web of Science® Times Cited: | 9 |
| Scopus® Cytowania: | 11 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Due to their excellent broadband response and high sensitivity to low-amplitude excitations,there is significant interest in the theoretical analysis and experimental validation of bistable energy har-vesters (BEHs). However, it is difficult in practice to obtain a perfectly symmetric bistable potential energyfunction, and our current understanding of the influence of asymmetric potentials on the response of BEHsis limited. As a result, this paper sheds light on the influence of asymmetric potentials on the responseprobability and electrical outputs of BEHs driven by Gaussian white noise. Firstly, the influence of po-tential well depth on the power outputs and response probability of symmetric BEHs is illustrated. Whena quadratic nonlinearity is introduced to characterize the asymmetry, numerical simulations demonstratethat it has a negative effect on the output of BEHs when the noise intensity is relatively low, and the neg-ative influence becomes great with an increase in the degree of asymmetry. From the probability analysis,it is concluded that the probability density function of displacement strongly depends on the degree ofasymmetry of the potential function and it is also affected by the excitation intensity. Finally, experimentsare carried out which demonstrate that the average output power is indeed influenced by the asymmetricpotential of the BEHs under different excitation levels. |
