Biomimetic Dielectric Elastomer Actuators

Polymer actuators offer attractive properties as biomimetic devices capable of mimicking functional characteristics of biological muscles and structures. This paper presents the ongoing research activities and the latest results achieved in our lab in the development of soft actuators made of a particular class of electroactive polymers, consisting of silicone-based dielectric elastomers. Devices described here exploit the basic principle of operation of such an actuation technology, i.e. an electrical squeezing of an elastomeric insulator, with different structural configurations showing unlike active features. In particular, new actuators shaped as contractile linear devices are particularly emphasised, with reference to applications currently under study or development

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

[2]  Marcello Ferro,et al.  FACE: facial automaton for conveying emotions , 2004 .

[3]  Q. Pei,et al.  High-field deformation of elastomeric dielectrics for actuators , 2000 .

[4]  Ron Pelrine,et al.  Actuation Response of Polyacrylate Dielectric Elastomers , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[5]  Ron Pelrine,et al.  High-Strain Actuator Materials Based on Dielectric Elastomers , 2000 .

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

[7]  D. De Rossi,et al.  Electromechanical characterisation of dielectric elastomer planar actuators: comparative evaluation of different electrode materials and different counterloads , 2003 .

[8]  Helmut F. Schlaak,et al.  Electrostatic solid-state actuators with elastic dielectric and multilayer fabrication technology , 2004 .

[9]  Steven Ashley,et al.  Artificial muscles. , 2003, Scientific American.

[10]  Danilo De Rossi,et al.  Dielectric elastomer cylindrical actuators: electromechanical modelling and experimental evaluation , 2004 .

[11]  Y. Cohen Electroactive Polymer (EAP) Actuators as Artificial Muscles - Reality , 2001 .

[12]  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.

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

[14]  Danilo De Rossi,et al.  Eyeball pseudo-muscular actuators for an android face , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[15]  D. De Rossi,et al.  Folded dielectric elastomer actuators , 2007 .

[16]  Q. Pei,et al.  Electroelastomer rolls and their application for biomimetic walking robots , 2003 .

[17]  Rachel Z. Pytel,et al.  Artificial muscle technology: physical principles and naval prospects , 2004, IEEE Journal of Oceanic Engineering.

[18]  D. Rossi,et al.  Helical dielectric elastomer actuators , 2005 .

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

[20]  Danilo De Rossi,et al.  A new contractile linear actuator made of dielectric elastomers (Invited Paper) , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.