Research on Dynamic Electromechanical Coupling Characteristics of Dielectric Elastomer Actuator

Abstract

Abstract:

The mechanical behavior theory of DE material was analyzed herein. The electromechanical coupling constitutive model of DE drive was built based on the common strain energy function, such as Mooney-Rivlin model, Ogden model, and Yeoh model. Through the drive experiments, the experimental data was compared with ones from three kinds of electromechanical coupling model. Then the important factors that affected the electromechanical stability of the DE were obtained, and the most suitable model of electromechanical coupling performance behavior used for DE material was determined.

Key words: dielectric elastomer(DE), constitutive relation, electromechanical coupling, driving performance

摘要：

通过分析电场活化聚合物材料的力学行为理论，建立了基于常见应变能函数（Mooney-Rivlin模型、Ogden模型和Yeoh模型）的电场活化聚合物驱动器的机电耦合本构模型。通过驱动实验，将3种机电耦合模型结果与实验数据进行了对比分析，得出影响电场活化聚合物机电稳定性的重要因素，确定了最适用于电场活化聚合物的机电耦合性能行为的模型。

关键词: 电场活化聚合物, 本构关系, 机电耦合；驱动性能

CLC Number:

TB381
TQ334

Chen Juan, Liu Kun. Research on Dynamic Electromechanical Coupling Characteristics of Dielectric Elastomer Actuator[J]. China Mechanical Engineering, 2015, 26(19): 2575-2580.

陈娟, 刘焜. 电场活化聚合物驱动器动态机电耦合特性研究[J]. 中国机械工程, 2015, 26(19): 2575-2580.

References

[1]Perline R，Kohrnbluh R，Pei Q，et al. High-speed Electrically Actuated Elastomers with Strain Greater than 100%[J]. Science, 2000, 287(5454): 836-839.
[2]盛俊杰，陈花玲，强俊花. 介电弹性材料的机电耦合性能研究[J]. 应用力学学报，2012，29(1)：38-40.
Sheng Juanjie，Chen Hualing，Qiang Junhua. Research on Electromechanical Coupling Properties in Dielectric Elastomers[J]. Chinese Journal of Applied Mechanics，2012，29(1)：38-40.
[3]杨位东，王化明，魏礼建，等. 介电型EAP卷绕式驱动器的实现与应用[J]. 机械制造与自动化，2015，44（1）：163-167.
Yang Weidong，Wang Huaming，Wei Lijian，et al. Implementation and Application of Dielectric Electroactive Polymer Roll Actuators[J]. Machine Building & Automation，2015，44(1):163-167.
[4]林桂娟，张欣波，王克胜.电活性聚合物发电实验[J].厦门理工学院学报，2013，21(3):45-49.
Lin Guijuan，Zhang Xinbo，Wang Kesheng. Experimentation on Energy Conversion of the Dielectric Electro Active Polymer[J]. Journal of Xiamen University of Technology，2013，21(3):45-49.
[5]傅丹丹．基于EAP致动器的动态控制建模的基础研究[D]．杭州：杭州电子科技大学，2014.
[6]Wissler M，Mazza E. Electromechanical Coupling in Dielectric Elastomer Actuators[J]. Sensors and Actuators A：Physical，2007，138(2): 384-393.
[7]Suo Z，Zhao X，Greene W H. A Nonlinear Field Theory of DE Formable Dielectrics [J]. Journal of the Mechanics and Physics of Solids，2008，56(2)：467-486.
[8]刘立武，孙寿华，刘彦菊，等. 具有线性介电常数的Ogden型介电弹性体的本构关系和机电稳定性[J]. 固体力学学报，2010，31（2）：181-192.
Liu liwu，Sun Shouhua，Liu Yanju. Constitutive Relation Electromechanical Stability Analysis of Ogden Type Dielectric Elastomer with Linear Permitivity[J]. Chinese Journal of Solid Mechanics，2010，31(2)：181-192.
[9]Li X F，Yang X Y. A Review of Elastic Constitutive Model for Rubber Materials[J]. China Elastomerics，2005，15(1): 50-58.
[10]Mooney M. A Theory of Large Elastic Deformation [J]. Journal of Applied Physics，1940，11: 582-592.
[11]Dorfmann A，Austria V，Ogden R W. Nonlinear Electroelasticity[J]. Acta Mechanica，2005，174： 167-183.
[12]Ogden R W. Large DE Formation Isotropic Elasticity: on the Correlation of Theory and Experiment of Compressible Rubberlike Solids[J]. Proceedings of the Royal Society of London, 1972，A328：567-583.
[13]Ogden R W. On the Thermoelastic Modeling of Rubberlike Solids[J]. Journal of Thermal Stresses，1992，15：533-557.
[14]Yeoh O H. Characterization of Elastic Properties of Carbon-black-filled Rubber Vulcanizates[J]. Rubber Chemistry and Technology，1990，63: 792-805.
[15]Yeoh O H. On the Ogden Strain Energy Function[J]. Rubber Chemistry and Technology，1997，70：175-182.