刚柔复合梁压电风能采集器的试验测试与分析

王淑云,沈亚林,阚君武,汪彬,张忠华,严梦加,方江海

振动与冲击 ›› 2016, Vol. 35 ›› Issue (18) : 23-27.

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (18) : 23-27.
论文

刚柔复合梁压电风能采集器的试验测试与分析

  • 王淑云,沈亚林,阚君武,汪彬,张忠华,严梦加,方江海
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Test and analysis of piezoelectric wind energy harvester based on rigid-flexible composite beam

  • WANG Shu-yun, Shen Ya-lin, KAN Jun-wu, WANG Bin, ZHANG Zhong-hua, YAN Meng-jia, FANG Jiang-hai
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摘要

为满足弱风时微功率传感监测系统的自供电需求,提出一种由压电梁与其端部柔性梁构成的刚柔复合梁风能采集器,介绍了其结构及原理,并进行了理论分析与试验研究。结果表明,柔性梁厚度h2/长度l2、迎风角α及风速v对风能采集器输出电压Vg都有较大影响,各要素合理匹配可有效地提升发电能力。其它条件确定时,Vg与 (0~9.45 m•s-1)呈较好的线性关系;存在最佳柔性梁长度 和最佳迎风角 使输出电压最大( ),且随h2增加 增加、 降低,h2为0.1/0.2/0.3mm时 为45/60/150mm、 为57.6/39.2/33.6V;h2对 影响不大,h2为0.1/0.2/0.3mm时的 均为35º左右。

Abstract

To meet the demands of self-powered monitoring system for energy at low-speed wind, a piezoelectric energy harvester (PEH) is presented. The PEH is comprised of a rigid piezoelectric beam and a flexible beam strung together in series. Firstly, the structure and principle of the PEH are introduced. And then, analysis of influence factor to properties and proof experiment are carried out. The research results show that the thickness (h2)/length (l2) of the flexible beam, the attack angle (α) and the wind velocity (v) exert great influence on output voltage (Vg), which can be improved effectively with reasonable matching of the above parameters. Under other parameters given, Vg is in direct proportion to v (0~9.45m•s-1). There is an optimal length of the flexible beam ( ) and an optimal attack angle ( ) for the PEH to achieve maximal voltage ( ).With the increasing of h2,   increases, and   decreases. Under h2=0.1/0.2/0.3mm,   and   are equal to 45/60/150mm and 57.6/39.2/33.6V respectively.  remains almost the same (35º) with the increasing of h2 from 0.1mm to 0.3mm.

关键词

压电 / 采集器 / 风能 / 刚柔复合梁

Key words

piezoelectric / energy harvester / wind energy / rigid-flexible composite beam

引用本文

导出引用
王淑云,沈亚林,阚君武,汪彬,张忠华,严梦加,方江海. 刚柔复合梁压电风能采集器的试验测试与分析[J]. 振动与冲击, 2016, 35(18): 23-27
WANG Shu-yun, Shen Ya-lin, KAN Jun-wu, WANG Bin, ZHANG Zhong-hua, YAN Meng-jia, FANG Jiang-hai. Test and analysis of piezoelectric wind energy harvester based on rigid-flexible composite beam[J]. Journal of Vibration and Shock, 2016, 35(18): 23-27

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