A PIEZOELECTRIC BASED ENERGY HARVESTER WITH DYNAMIC MAGNIFICATION

被引:0
|
作者
Castagnetti, Davide [1 ]
机构
[1] Univ Modena & Reggio Emilia, Dept Engn Sci & Meth, I-42122 Reggio Emilia, Italy
关键词
MAGNIFIER;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Energy harvesting from ambient vibrations exploiting piezoelectric materials is an efficient solution for the development of self-sustainable electronic nodes. This work presents a simple and innovative piezoelectric energy harvester, intrinsically including dynamic magnification and inspired by fractal geometry. After an initial design step, computational analysis and experimental validation show a very good frequency response with five eigenfrequencies below 100 Hz. Even if the piezoelectric transducers were put only on a symmetric half of the top surface of the structure, the energy conversion is good for all the eigenfrequencies investigated.
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页数:7
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