Rainbow型压电换能结构的有限元分析与实验

刘祥建; 陈仁文

doi:10.3788/OPE.20111904.0789

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Rainbow型压电换能结构的有限元分析与实验

微纳技术与精密机械 | 更新时间：2020-08-12

- Rainbow型压电换能结构的有限元分析与实验
- Finite element analysis and experiments on Rainbow shape piezoelectric energy transferring elements
- 光学精密工程 2011年19卷第4期页码：789-796
- 作者机构：
  
  南京航空航天大学智能材料与结构航空科技重点实验室,江苏南京 210016
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No. 10972102)();江苏省科技支撑计划资助项目(No.BE2009163)()
- DOI：10.3788/OPE.20111904.0789
  中图分类号： TM31;TN384
- 收稿日期：2010-03-23，
  
  修回日期：2010-08-06，
  
  网络出版日期：2011-04-26，
  
  纸质出版日期：2011-04-26
- 稿件说明：
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刘祥建, 陈仁文. Rainbow型压电换能结构的有限元分析与实验[J]. 光学精密工程, 2011,19(4): 789-796

LIU Xiang-jian, CHEN Ren-wen. Finite element analysis and experiments on Rainbow shape piezoelectric energy transferring elements[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 789-796
刘祥建, 陈仁文. Rainbow型压电换能结构的有限元分析与实验[J]. 光学精密工程, 2011,19(4): 789-796 DOI： 10.3788/OPE.20111904.0789.

LIU Xiang-jian, CHEN Ren-wen. Finite element analysis and experiments on Rainbow shape piezoelectric energy transferring elements[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 789-796 DOI： 10.3788/OPE.20111904.0789.

摘要

提出了一种换能部分采用新颖的Rainbow型压电结构的多方向振动能量收集装置。为了分析和测试Rainbow型压电换能结构的发电性能

对该装置进行了有限元分析和实验测试。有限元分析表明

金属基片的宽度与厚度、压电薄膜的宽度与长度及换能结构初始曲率半径的增大会引起换能结构输出开路电压的降低;金属基片长度的增大会引起换能结构输出开路电压的增加;压电薄膜厚度的增大会使得换能结构输出开路电压先增加后减小。实验显示

有限元分析与实验结果具有较好的一致性

且都在压电薄膜厚度为0.25 mm时换能结构的输出电压最大

得到的结果验证了有限元分析的可靠性。另外

在输出功率测试中

换能结构的输出功率达到了7.75 W。分析及测试结果为Rainbow型压电换能结构的设计、制作提供了指导性意见。

Abstract

A designing structure which can harvest multi-direction vibration energies was proposed by using the new Rainbow shape piezoelectric energy transferring elements.In order to analysis and test the electricity generation of the piezoelectric energy transferring elements

the finite element analysis and practical tests were performed.The simulation results indicate that the open circuit voltage of Rainbow shape piezoelectric energy transferring elements will be reduced with the increases of the width and thickness of a metal substrate

the width and length of a piezoelectric film and the initial curvature radii of energy transferring elements; and it will be increased with the increase of the length of the metal substrate and shows a maximum with the increase of the thickness of piezoelectric film.The experimental result demonstrates the validity of finite element analysis and emphasizes that the open circuit voltage of energy transferring elements will have a maximum when the thickness of piezoelectric film is 0.25 mm.Furthermore

in the output power tests

the maximal output power of Rainbow shape piezoelectric energy transferring elements is about 7.75 W. The results of simulation and experiment provide helps for designing

manufacturing and realizing the Rainbow shape piezoelectric energy transferring elements.

关键词

Keywords

references

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