Actuation Behavior of Hydraulically Amplified Self-Healing Electrostatic (HASEL) Actuator via Dimensional Analysis

Electroactive polymer (EAP) actuators are an example of a novel soft material device that can be used for several applications including artificial muscles and lenses. The field EAPs broken down into few fields; however, the will discussed in this study is Soft Electrohydraulic (SEH or EH) actuators. specifically studied Hydraulically Amplified Self-Healing Electrostatic (HASEL) actuator. design HASEL actuator simple. There two compliant films house dielectric liquid, with application voltage potential, there output displacement force. However, actuation mechanism more complex, thus need to understand theoretically experimentally how works. This analytically describes electrode closure experimental testing Then, dimensional analysis techniques determine what factors contributing function For study, eight dimensionless Π groups were found based on derived analytical equation. These determined input voltage, density, viscosity, elastic modulus materials; these chosen because their major contribution data. particular importance related characteristic length, which directly fluid, fluid velocity, pressure, constant. From relationships between force, electrostatic contributions, other parameters determined. All all, type provide guidance development high-performance