Electromechanical stability analysis for the DE actuator with biaxial pre- stretch
FAN Ya- ling1，YANG Hong- liang2
1Department of Mechanical and Electrical Engineering, Xi’an Railway Vocational & Technical Institute,Xi’an 710014，Shaanxi,China 2Center of Engineering Training, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi，China
Abstract：Electromechanical stability analysis for the DE(dielectric elastomer) actuator with biaxial pre- stretch is one of the important indexes to measure the dielectric elastomer properties By the method of FEM, the characteristics of a DE actuator subject to a voltage and biaxial pre- stretches are simulatedRelationships between the nominal electric field with the stretches, the nominal electric field with the nominal electric displacement, and the true electric field with the stretches are analyzed The simulation results get along well with the results obtained by the theoretical model The results show that the stability of the actuator is markedly enhanced by prestresses, and the method used in the FEM can be used in the design of the design of DE actuators with biaxial pre- stretch
Landy AT, Andrew A, Goldenberg. Control System Design for a Dielectric Elastomer Actuator: the Sensory Subsystem[J]. Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), 2002, 4695: 323-334.
[4]
Carpi F, Migliore A, De Rossi D. A new contractile linear actuator made of dielectric elastomers[J]. Smart Structures and Materials 2005: Electroactive Polymer Actuators and Devices (EAPAD), 2005, 5759: 64-74.
[5]
Choi HR, Jung KM, Kwak JW, et al. Multiple degree-of-freedom digital soft actuator for robotic applications[J]. Smart Structures and Materials:Electroactive Polymer Actuators and Devices (EAPAD), 2003, 5051: 262-271
[8].
[6]
Patrick L ,Gabor K,Silvain M. Characterization of dielectric elastomer actuators based on a visco-hyperelastic film model [ J ] . Smart Materials & Structures ,2007 ,16 (2) :477-486.
[7]
Mockensturm E M , Goulbourne N. Dynamic response of dielectric elastomers [J] . International Journal of Non-Linear Mechanics ,2006 ,41 (3) :388-395.
[8]
Goulbourne N C ,Mockensturm E M ,Frecker M I. Electroelastomers : large deformation analysis of silicone membranes [ J ] . International Journal of Solids and Structures ,2007 ,44 (1) :2609-2626.
[9]
Arruda E M ,Boyce M C. A three dimensional constitutive model for the large stretch behavior of rubber elastic materials [ J ] . Journal of the Mechanics and Physics of Solids ,1993 ,41 (2) :389-412.
[10]
Patrick L ,Gabor K,Silvain M. Characterization of dielectric elastomer actuators based on a hyperelastic film model [J ] . Journal Sensors and Actuator A : Physical ,2007 ,135 (2) :748-757.
[11]
Zhao X H , Suo Z G. Method to analyze electromechanical stability of dielectric elastomers [J] . Applied Physics Letters ,2007 ,91 (6) :061921.
[12]
Zhao X H ,Hong W ,Suo Z G. Electromechanical coexistent states and hysteresis in dielectric elastomers [J] . Physical Review B ,2007 ,76 (13) :134113.
[13]
Suo Z G. Zhao X H , Greene W H. A nonlinear field theory of deformable dielectrics [J] . Journal of the Mechanics and Physics of Solids , 2008 , 56 (2): 476-486.
2016, Vol. 23 
