Dynamic bending/torsion and output power of S-shaped piezoelectric energy harvesters
Dynamic bending/torsion and output power of S-shaped piezoelectric energy harvesters
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DOI：
10.1007/s10999-014-9247-0
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发表时间：
2014-09-01
影响因子：
3.7
通讯作者：
Narita, Fumio
中科院分区：
文献类型：
--
作者：
Shindo, Yasuhide;Narita, Fumio
本文通过数值和实验研究了 S 形压电能量收集器的动态机电响应。采用三维有限元法对弯扭振动激励下的采集器的谐振频率和输出电压进行了分析。还测量了谐振频率和输出电压，并进行了分析和实验的比较。然后详细讨论了波纹度、检验质量和负载电阻对动态机电场和输出功率的影响。
This paper studies the dynamic electromechanical response of S-shaped piezoelectric energy harvesters both numerically and experimentally. The resonant frequency and output voltage of the harvesters excited by bending/torsion vibration were analyzed by three dimensional finite element method. The resonant frequency and output voltage were also measured, and a comparison was made between analysis and experiment. The effects of waviness ratio, proof mass and load resistance on the dynamic electromechanical fields and output power were then discussed in detail.