TY - GEN
T1 - High-stress dielectric elastomer actuators with oil encapsulation
AU - Lau, Gih Keong
AU - La, Thanh Giang
AU - Di-Teng Tan, Desmond
PY - 1997/3/9
Y1 - 1997/3/9
N2 - Dielectric elastomer actuators (DEAs) can generate a large strain, but they are often short of strength and stress change for robotic applications. Their maximum actuation is limited by pre-mature electrical breakdown. This paper showed that dielectric oil encapsulation helps stop pre-mature breakdowns. Consequently, the oil encapsulated DEAs can sustain an ultra-high electrical breakdown field up to 835MV/m, which is 46% higher than 570MV/m in air without oil encapsulation. These oil-encapsulated DEA can produce muscle-like high stress change up to 1.05MPa, which is 75% higher than that produced by the DEA in air. Furthermore, oil encapsulation is also found effective to suppress electrical breakdown of tubular DEAs. These high-stress dielectric elastomer actuators show good potential to drive human-inspired robots.
AB - Dielectric elastomer actuators (DEAs) can generate a large strain, but they are often short of strength and stress change for robotic applications. Their maximum actuation is limited by pre-mature electrical breakdown. This paper showed that dielectric oil encapsulation helps stop pre-mature breakdowns. Consequently, the oil encapsulated DEAs can sustain an ultra-high electrical breakdown field up to 835MV/m, which is 46% higher than 570MV/m in air without oil encapsulation. These oil-encapsulated DEA can produce muscle-like high stress change up to 1.05MPa, which is 75% higher than that produced by the DEA in air. Furthermore, oil encapsulation is also found effective to suppress electrical breakdown of tubular DEAs. These high-stress dielectric elastomer actuators show good potential to drive human-inspired robots.
KW - Artificial muscles
KW - dielectric elastomer actuator
KW - dielectric strength
KW - electrical breakdown
UR - http://www.scopus.com/inward/record.url?scp=84949924044&partnerID=8YFLogxK
U2 - 10.1109/URAI.2014.7057530
DO - 10.1109/URAI.2014.7057530
M3 - Conference contribution
AN - SCOPUS:84949924044
T3 - 2014 11th International Conference on Ubiquitous Robots and Ambient Intelligence, URAI 2014
SP - 196
EP - 197
BT - 2014 11th International Conference on Ubiquitous Robots and Ambient Intelligence, URAI 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 11th International Conference on Ubiquitous Robots and Ambient Intelligence, URAI 2014
Y2 - 12 November 2014 through 15 November 2014
ER -