Study on Diamagnetic Levitation Structure in Electromagnetic Vibration Energy Harvester

被引：3
作者：
Zhang, Zhenyu [1 ]
Zhang, Kun [1 ]
Duan, Zhiyong [2 ]
Su, Yufeng [1 ]
机构：
[1] Zhengzhou Univ, Sch Mech Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Zhengzhou Univ, Sch Phys Engn, Zhengzhou 450001, Henan, Peoples R China
来源：
SENSORS AND MATERIALS | 2018年 / 30卷 / 06期
基金：
中国国家自然科学基金;
关键词：
diamagnetic levitation; vibration energy harvester; simulation; nonlinear vibration; bistability; PERFORMANCE ENHANCEMENT; RESONANCE; DYNAMICS; CIRCUIT;
D O I：
10.18494/SAM.2018.1835
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this paper, we proposed an electromagnetic vibration energy harvester with a diamagnetic levitation structure, which consists of a lifting magnet, two highly oriented pyrolytic graphite (HOPG) sheets, and a floating magnet. The dynamic characteristics of the diamagnetic levitation structure arc critical to the performance of the energy harvester. The diamagnetic and magnetic forces were calculated in COMSOL (TM), and the bistable phenomenon of the diamagnetic levitation structure was found and verified experimentally. The nonlinear characteristics of the diamagnetic levitation structure were studied in Simulink. Under different external excitations, the intrawell and interwell vibrations were observed in phase diagrams. When the excitation frequency is 1 Hz and the amplitude is 8.1 mm. the low-energy region is similar to the high-energy region, which is beneficial to harvest energy.
引用
收藏
页码：1357 / 1366
页数：10
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