Rolling dielectric elastomer actuator based on liquid metal electrode

doi:10.16731/j.cnki.1671-3133.2025.03.010

Abstract

Abstract: The rolling dielectric elastomer made of silicone rubber has been widely used in soft robot field because of its high frequency resonance. The high conductivity and very low stiffness of liquid metal can effectively guarantee the resonance response of dielectric elastomer.However,the current Rolling Dielectric Elastomer Actuator (RDEA) prepared with liquid metals cannot achieve the resonance phenomenon. It presents a method to obtain a flexible electrode with oxide and liquid metal co-existing by stirring liquid metal and scraping coating. Then,the static and dynamic properties of the Spring Rolling Dielectric Elastomer Actuator (SRDEA) prepared by the process and the traditional carbon-based electrode are compared,and the reliability and low stiffness characteristics are demonstrated. Finally,based on this process and structure,a bristle crawling robot was made,which can achieve a crawling speed of more than 1 times the body length per second.

Key words: liquid metal, electrodes, dielectric elastomer, soft robot

CLC Number:

TP242

ZHAO Futeng, HU Hua, ZHAO Weiwei. Rolling dielectric elastomer actuator based on liquid metal electrode[J]. Modern Manufacturing Engineering, 2025, 534(3): 84-89.

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