Novel dielectric elastomer structures with electromechanical instability

Dielectric elastomer (DE) actuators can convert electrical energy to mechanical energy. However, actuating DE membranes requires applying high voltage. Continuously applying high voltage on DE actuator causes failures such as current leakage and electric breakdown. To overcome the high voltage actuation drawbacks of DE actuators, this paper raises a new actuation method using DE interacting with external elastic structures. The analysis is demonstrated based on continuum mechanics, and agrees very well with experiment measurements.

[1]  Shaoxing Qu,et al.  Energy harvesting of dielectric elastomer generators concerning inhomogeneous fields and viscoelastic deformation , 2012 .

[2]  Edoardo Mazza,et al.  Mechanical behavior of an acrylic elastomer used in dielectric elastomer actuators , 2007 .

[3]  Q. Pei,et al.  High-speed electrically actuated elastomers with strain greater than 100% , 2000, Science.

[4]  R. Pelrine,et al.  Electrostriction of polymer dielectrics with compliant electrodes as a means of actuation , 1998 .

[5]  Edoardo Mazza,et al.  Electromechanical coupling in dielectric elastomer actuators , 2007 .

[6]  S. Qu,et al.  Rate Dependent Stress-Stretch Relation of Dielectric Elastomers Subjected to Pure Shear Like Loading and Electric Field , 2012 .

[7]  Shaoxing Qu,et al.  Electromechanical and dynamic analyses of tunable dielectric elastomer resonator , 2012 .

[8]  C. Keplinger,et al.  Harnessing snap-through instability in soft dielectrics to achieve giant voltage-triggered deformation , 2012 .

[9]  Ron Pelrine,et al.  Multiple-degrees-of-freedom electroelastomer roll actuators , 2004 .

[10]  Z. Suo,et al.  A nonlinear field theory of deformable dielectrics , 2008 .

[11]  D. De Rossi,et al.  Millimetre‐scale bubble‐like dielectric elastomer actuators , 2010 .

[12]  S. Qu,et al.  Electromechanical Bistable Behavior of a Novel Dielectric Elastomer Actuator , 2014 .

[13]  Iain A. Anderson,et al.  An integrated, self-priming dielectric elastomer generator , 2010 .

[14]  S. Bauer,et al.  Self-organized minimum-energy structures for dielectric elastomer actuators , 2006 .

[15]  Iain A. Anderson,et al.  Self-priming dielectric elastomer generators , 2010 .

[16]  E. Hawkesa,et al.  Programmable matter by folding , 2010 .

[17]  Zhanan Zou,et al.  Active Shape Control and Phase Coexistence of Dielectric Elastomer Membrane With Patterned Electrodes , 2014 .

[18]  D. Rossi,et al.  Improvement of electromechanical actuating performances of a silicone dielectric elastomer by dispersion of titanium dioxide powder , 2005, IEEE Transactions on Dielectrics and Electrical Insulation.

[19]  Yoseph Bar-Cohen,et al.  Electroactive Polymer (EAP) Actuators as Artificial Muscles: Reality, Potential, and Challenges, Second Edition , 2004 .

[20]  Z. Suo,et al.  Method to analyze programmable deformation of dielectric elastomer layers , 2008 .

[21]  D. De Rossi,et al.  Silicone–Poly(hexylthiophene) Blends as Elastomers with Enhanced Electromechanical Transduction Properties , 2008 .

[22]  Z. Suo,et al.  Large conversion of energy in dielectric elastomers by electromechanical phase transition , 2012, Acta Mechanica Sinica.

[23]  Danilo De Rossi,et al.  Contractile dielectric elastomer actuator with folded shape , 2006, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[24]  Z. Suo.  Theory of dielectric elastomers , 2010 .

[25]  Zhigang Suo,et al.  A Finite Element Method for Dielectric Elastomer Transducers , 2012 .

[26]  C. Keplinger,et al.  Giant voltage-induced deformation in dielectric elastomers near the verge of snap-through instability , 2013 .

[27]  Liang Shi,et al.  Analysis of the Novel Strain Responsive Actuators of Silicone Dielectric Elastomer , 2008 .

[28]  S. Dubowsky,et al.  On the properties of dielectric elastomer actuators and their design implications , 2007 .

[29]  S. Bauer,et al.  Energy minimization for self-organized structure formation and actuation , 2007 .

[30]  S. Dubowsky,et al.  Large-scale failure modes of dielectric elastomer actuators , 2006 .

[31]  N. C. Goulbourne,et al.  Electric field-induced surface transformations and experimental dynamic characteristics of dielectric elastomer membranes , 2009 .

[32]  Ji Su,et al.  Theoretical modeling of electroactive polymer-ceramic hybrid actuation systems , 2005 .