一种冲击式压电发电机的实验研究

孙舒;曹树谦;姜南;刘承前;张文德;郎作贵;芮国林;王毅君

振动与冲击 ›› 2012, Vol. 31 ›› Issue (17) : 95-99.

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (17) : 95-99.
论文

一种冲击式压电发电机的实验研究

  • 孙舒, 曹树谦, 姜南, 刘承前, 张文德, 郎作贵, 芮国林,王毅君
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Experimental Study on A Impact Piezoelectric Generator

  • Sun Shu,Cao shu-qian, Jiang nan, Liu Cheng-qian, ZHANG Wen-de, LANG Zuo-gui, RUI Guo-lin, Wang Yi-jun
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摘要

介绍了自行设计制作的一种冲击式压电发电机。首先通过分析影响压电陶瓷发电量的因素,确定压电陶瓷的尺寸,并给出了冲击弹簧与恢复弹簧的刚度设计要求,然后测量了压电陶瓷叠片的模态及压电发电机的力谱,可以看出其冲击力能激发出压电陶瓷的轴向振动模态,从而使其产生的电荷能最多。最后,对压电发电机的性能进行了测试,得到其瞬时发电功率在0.3W左右,能够点亮210个并联发光二极管。

Abstract

A piezoelectric generator was designed and manufactured. Firstly, by analyzing related factors on piezoelectric ceramic’s power generation, the shape and size of the piezoelectric ceramic was determined. The stiffness requirement of impact spring and recover spring was given. Secondly, the piezoelectric ceramic’s modes and piezoelectric generator’s impact response spectrum were measured, showing that impact can excite piezoelectric ceramic’s axial vibration modes, so the piezoelectric ceramics produced more electric charges. Finally, the generating power of piezoelectric generator was tested, its instantaneous power can reach 0.3W, and can light up 210 LED.

关键词

压电发电 / 模态振型 / 发电功率 / 实验

Key words

piezoelectric energy generation / modal shape / electric power / experiment

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孙舒;曹树谦;姜南;刘承前;张文德;郎作贵;芮国林;王毅君. 一种冲击式压电发电机的实验研究[J]. 振动与冲击, 2012, 31(17): 95-99
Sun Shu;Cao shu-qian;Jiang nan;Liu Cheng-qian;ZHANG Wen-de;LANG Zuo-gui;RUI Guo-lin;Wang Yi-jun. Experimental Study on A Impact Piezoelectric Generator[J]. Journal of Vibration and Shock, 2012, 31(17): 95-99

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