Improved strain distribution of cantilever piezoelectric energy harvesting devices using H-shaped proof masses

被引：29

作者：

Guan, Qing C. ^{[1
]}

Ju, Bin ^{[2
]}

Xu, Jia W. ^{[2
]}

Liu, Yong B. ^{[2
]}

Feng, Zhi H. ^{[2
]}

机构：

[1] Beijing Automat Control Equipment Inst, Beijing, Peoples R China

[2] Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230027, Peoples R China

来源：

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2013年 / 24卷 / 09期

关键词：

Energy harvesting; piezoelectric; smart sensors; GENERATION;

D O I：

10.1177/1045389X13476150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article proposes a cantilever piezoelectric energy harvester consisted of an ordinary rectangular beam and an H-shaped proof mass. The H-shaped proof mass comprises two detached metal blocks that can provide large rotary inertia. A uniform strain distribution along the composite cantilever could be obtained by selecting an appropriate mass ratio between the detached metal blocks and vibration mode. We also fabricated a prototype H-shaped energy harvesting device. The result of the experiment done on the device is identical with both the theoretical and finite element analyses.

引用

页码：1059 / 1066

页数：8

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