Hydraulically amplified self-healing electrostatic actuators with muscle-like performance

Existing soft actuators have persistent challenges that restrain the potential of soft robotics, highlighting a need for soft transducers that are powerful, high-speed, efficient, and robust. We describe a class of soft actuators, termed hydraulically amplified self-healing electrostatic (HASEL) actuators, which harness a mechanism that couples electrostatic and hydraulic forces to achieve a variety of actuation modes. We introduce prototypical designs of HASEL actuators and demonstrate their robust, muscle-like performance as well as their ability to repeatedly self-heal after dielectric breakdown—all using widely available materials and common fabrication techniques. A soft gripper handling delicate objects and a self-sensing artificial muscle powering a robotic arm illustrate the wide potential of HASEL actuators for next-generation soft robotic devices.
Author(s): | Eric Acome and Shane K Mitchell and TG Morrissey and MB Emmett and Claire Benjamin and Madeline King and Miles Radakovitz and Christoph Keplinger |
Journal: | Science |
Volume: | 359 |
Number (issue): | 6371 |
Pages: | 61-65 |
Year: | 2018 |
Month: | January |
Day: | 05 |
Bibtex Type: | Article (article) |
DOI: | 10.1126/science.aao6139 |
State: | Published |
Electronic Archiving: | grant_archive |
BibTex
@article{ACOME18-SCI-HASEL, title = {Hydraulically amplified self-healing electrostatic actuators with muscle-like performance}, journal = {Science}, abstract = {Existing soft actuators have persistent challenges that restrain the potential of soft robotics, highlighting a need for soft transducers that are powerful, high-speed, efficient, and robust. We describe a class of soft actuators, termed hydraulically amplified self-healing electrostatic (HASEL) actuators, which harness a mechanism that couples electrostatic and hydraulic forces to achieve a variety of actuation modes. We introduce prototypical designs of HASEL actuators and demonstrate their robust, muscle-like performance as well as their ability to repeatedly self-heal after dielectric breakdown—all using widely available materials and common fabrication techniques. A soft gripper handling delicate objects and a self-sensing artificial muscle powering a robotic arm illustrate the wide potential of HASEL actuators for next-generation soft robotic devices.}, volume = {359}, number = {6371}, pages = {61-65}, month = jan, year = {2018}, slug = {keplinger18-s-hydraulically}, author = {Acome, Eric and Mitchell, Shane K and Morrissey, TG and Emmett, MB and Benjamin, Claire and King, Madeline and Radakovitz, Miles and Keplinger, Christoph}, month_numeric = {1} }