Characteristic evaluation of dielectric elastomer actuator based on the stretchable electrode density

Taichi Murakami, Ayato Minaminosono, Ardi Wianata, Hozuma Okabe, Hiroki Shigemune, Shingo Maeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dielectric elastomer actuators (DEAs) have a high energy density and low power consumption. The development of DEAs operating characteristics may greatly contribute to the development of the next generation of soft actuators. In the previous works, we reported a brushing method to fabricate ideal stretchable electrodes for DEA using Carbon nanotube (CNT) powders. In this study, we investigated the relationships between the characteristics of the DEA and the density of the CNT as a stretchable electrode. When the electrode density was low, the increasing area due to the DEAs actuation cause the electrode resistance to elevate steeply. The increase in this electric resistance indicates the degradation of the network connection between the CNTs. In the case of a low density of CNT, the plane stress of DEAs against voltage increment became smaller. As a result, higher voltages can be applied. Currently, we succeeded in restraining the displacement of the DEAs in response to voltage changes. This technique is intended to finely control the deformation of the DEA in regard to the voltage change. Therefore, our technology has the potential contribution to an area where fine control of actuators is required, such as motion control and position control.

Original languageEnglish
Title of host publication2021 IEEE 4th International Conference on Soft Robotics, RoboSoft 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages563-566
Number of pages4
ISBN (Electronic)9781728177137
DOIs
Publication statusPublished - 2021 Apr 12
Event4th IEEE International Conference on Soft Robotics, RoboSoft 2021 - New Haven, United States
Duration: 2021 Apr 122021 Apr 16

Publication series

Name2021 IEEE 4th International Conference on Soft Robotics, RoboSoft 2021

Conference

Conference4th IEEE International Conference on Soft Robotics, RoboSoft 2021
Country/TerritoryUnited States
CityNew Haven
Period21/4/1221/4/16

ASJC Scopus subject areas

  • Artificial Intelligence
  • Mechanical Engineering
  • Control and Optimization
  • Modelling and Simulation

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