- Tytuł:
- Investigation to the influence of additional magnets positions on four-magnet bi-stable piezoelectric energy harvester
- Autorzy:
-
Li, Xinxin
Huang, Kexue
Li, Zhilin
Xiang, Jiangshu
Huang, Zhenfeng
Mao, Hanling
Cao, Yadong - Powiązania:
- https://bibliotekanauki.pl/articles/2173633.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
bistable
piezoelectric energy harvesting
nonlinear dynamic
potential energy
układ bistabilny
dynamika nieliniowa
energia potencjalna
zbieranie energii piezoelektrycznej - Opis:
- To enhance the harvesting performance of a bi-stable piezoelectric energy harvester (BEH), this work proposes a four-magnet BEH (FBEH). FBEH consists of a piezoelectric cantilever beam with a tip magnet, a fixed magnet and two movable magnets. The two movable magnets relative to the fixed magnet can move in both horizontal and vertical directions. A nonlinear distributed parameter model of FBEH is derived through the Hamilton principle. The effects of the excitation frequency and amplitude as well as the horizontal and vertical gap on the harvesting performance are mainly investigated by using the bifurcation diagram, phase diagram, Poincaré map and output power. Numerical simulations demonstrate that the proposed FBEH decreases the potential barrier and creates a higher than typical bi-stable one when subjected to lower excitation amplitudes and frequencies.
- Źródło:
-
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 1; art. no. e140151
0239-7528 - Pojawia się w:
- Bulletin of the Polish Academy of Sciences. Technical Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł