Enhancing the performance of dielectric elastomer actuators through the approach of distributed electrode array with fractal interconnects architecture
Burugupally, Sindhu Preetham Koppolu, Bhargav Danesh, Negar Lee, Yongkuk Indeewari, Vidisha Li, Bin
Burugupally, Sindhu Preetham
Koppolu, Bhargav
Danesh, Negar
Lee, Yongkuk
Indeewari, Vidisha
Li, Bin
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2021-04-27
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Article
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Keywords
Dielectric elastomer actuator,Fractal interconnects,Distributed electrode array,Microrobotics,Static and dynamic response
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Citation
Burugupally, S. P., Koppolu, B., Danesh, N., Lee, Y., Indeewari, V., & Li, B. (2021). Enhancing the performance of dielectric elastomer actuators through the approach of distributed electrode array with fractal interconnects architecture. Journal of Micromechanics and Microengineering, 31(6) doi:10.1088/1361-6439/abf632
Abstract
Dielectric elastomer actuators fabricated from thin and miniaturized metal electrodes integrated with highly soft and stretchable elastomers offer the promise of opening new possibilities in the field of microrobotics. To achieve large displacements $O(10^{−4})$ m at actuation voltages $O(10^3)$ V in actuators with thin metal electrodes, the approach of distributed electrode array with fractal interconnects is proposed, where a single large electrode is replaced with an array of N small individual electrodes physically linked together with fractal interconnects. To investigate the effect of distributed electrode array with fractal interconnects on the static and dynamic response of the actuators, elastomer actuators with different electrode arrays—comprised of N ∈ {1,5,13,25} individual electrodes in the shape of circles—are fabricated and characterized. This study shows that the approach of distributed electrode array with fractal interconnects results in achieving large actuator displacements $O(10^{−4})$ m at high speeds $O(10^0)$ mm $s^{−1}$, making these actuators suitable for driving microrobots.
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IOP Publishing
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Journal of Micromechanics and Microengineering;Vol. 31, Iss.. 6
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0960-1317
1361-6439
1361-6439