Performance Research of a Novel Spiral Piezoelectric Harvester
(0) Piezoelectric materials generate electricity when they are subjected to mechanical strain. This paper presents an innovative design platform of piezoelectric energy harvester with variable curvatures and sections. Firstly, the effects of the proof mass position on the spiral laminated beam with PZT-5H bonded on the surface are analyzed. Secondly, the dynamical performances of the piezoelectric harvester with different shape are investigated. The results, which are gotten through ANSYS software, show that the first three order natural frequencies increase linearly while the distance from the free end increases. The voltage distribution variates acutely because of the coupling of the bending and twisting actions in the beam. The simulation data will provide a theory analysis foundation for the engineering, design and application of harvester.
Piezoelectric energy harvester MEMS Spiral beam Coupling vibration
Yong Zhou Shi Li Jian Tang
Hunan Institute of Science & Technology, Hunan, Yueyang, 414006, China
国际会议
上海
英文
254-258
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）