纯剪切模式介电弹性体发电机发电特性

鄂世举; 金建华; 曹建波; 蔡建程; 夏文俊

doi:10.3788/OPE.20182607.1708

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纯剪切模式介电弹性体发电机发电特性

微纳技术与精密机械 | 更新时间：2020-08-13

- 纯剪切模式介电弹性体发电机发电特性
- Power generation characteristics of dielectric elastomer generator under pure shear mode
- 光学精密工程 2018年26卷第7期页码：1708-1718
- 作者机构：
  
  浙江师范大学工学院, 浙江金华 321004
- 作者简介：
  
  [ "鄂世举(1970-), 男, 吉林长春人, 博士, 教授, 硕士生导师, 1994年、2000年、2003年于吉林工业大学机械系分别获得学士、硕士、博士学位, 主要从事新型功能材料应用技术及机电装备技术的研究。E-mail:276828373@qq.com" ]
  [ "曹建波(1980-), 男, 山东潍坊人, 博士, 副教授, 硕士生导师, 2008年于西安交通大学机械工程学院获得博士学位, 主要从事介电弹性体发电技术和机电系统节能技术的研究。E-mail:caojianbo2008@163.com" ]
- 基金信息：
  
  浙江省自然科学基金资助项目(LY17E070001);浙江省基础公益研究项目工业项目资助(LGG18E070005);国家自然科学基金资助项目(51377146);国家自然科学基金资助项目(51407162)
- DOI：10.3788/OPE.20182607.1708
  中图分类号： TP394.1;TH691.9
- 收稿日期：2017-08-21，
  
  录用日期：2017-10-9，
  
  纸质出版日期：2018-07-25
- 稿件说明：
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鄂世举, 金建华, 曹建波, 等. 纯剪切模式介电弹性体发电机发电特性[J]. 光学精密工程, 2018,26(7):1708-1718.

Shi-ju E, Jian-hua JIN, Jian-bo CAO, et al. Power generation characteristics of dielectric elastomer generator under pure shear mode[J]. Optics and precision engineering, 2018, 26(7): 1708-1718.
鄂世举, 金建华, 曹建波, 等. 纯剪切模式介电弹性体发电机发电特性[J]. 光学精密工程, 2018,26(7):1708-1718. DOI： 10.3788/OPE.20182607.1708.

Shi-ju E, Jian-hua JIN, Jian-bo CAO, et al. Power generation characteristics of dielectric elastomer generator under pure shear mode[J]. Optics and precision engineering, 2018, 26(7): 1708-1718. DOI： 10.3788/OPE.20182607.1708.

摘要

为研究介电弹性体发电机的发电特性，基于COMSOL有限元软件建立了在纯剪切拉伸方式下的介电弹性体发电机有限元仿真机电耦合模型。该模型基于Yeoh超弹性材料本构，同时耦合发电机膜内静电力，根据可变电容理论对发电机电容变化及发电效果进行研究。设计了可

向预拉伸的纯剪切拉伸装置，并在不同预拉伸条件下对发电机薄膜样本进行了拉伸实验，分析了其电容变化及发电效果。对比了仿真数据与实验结果，仿真模型的电容变化与实验测得的电容变化情况基本吻合，仿真模型一个周期内的输出电压变化与实验测得的电压变化基本吻合。实验及仿真结果表明，在相同的拉伸条件下，

向预拉伸增大了初始电容及电容变化速率，且当

向预拉伸

=1时的上升电压为83 V，而

=2时的上升电压达到252 V，改善了发电性能。本文提出的介电弹性体发电机新的研究方法为发电机样机设计提供了新的思路。

Abstract

In order to study the power generation characteristics of a Dielectric Elastomer Generator (DEG)

a Finite Element (FE) model of the DEG under pure shear mode was established in the COMSOL Multiphysics commercial package. The model was based on the Yeoh constitutive relation of hyperelastic materials

coupled with the electrostatic force inside the generator membrane. The capacitance variation of the generator and the effect of power generation were studied. A pure shear tension apparatus was designed such that the DEG can be pre-stretched in the

direction. Experiments to study the DEG performance under different pre-stretching conditions were carried out

and the capacitance change and power generating effect were obtained. The simulation data and the experimental results were compared and good agreement was found

therefore proving that the FE model is reliable. This study shows that

under the same tensile conditions

pre-stretching in the

direction increases the initial capacitance and the capacitance changing rate of the DEG membrane. Hence

when the DEG was pre-stretched at

its rising voltage was 83 V

while at

its rising voltage was 252 V

thereby improving the power generation performance. The new research method of DEGs presented in this paper provides a new idea for the design of a generator prototype.

关键词

Keywords

references

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