A physics-based modeling of a hydraulically amplified electrostatic actuator

Abstract The focus of this study is to understand the physical phenomenon liquid-based electroactive polymer (EAP) actuator known as Hydraulically Amplified Self-Healing Electrostatic (HASEL) actuator. Specifically, provides data in several areas, including deformation film material, dynamics dielectric liquid, and electrical conditions within body. A two-dimensional model was developed finite element software, COMSOL Multiphysics, create a generalized physics-based framework that describes actuation mechanism. Much predictive agreed well with experimental data, such electrode pull-in occurring at ∼4.5 kV displacement-voltage behavior. More importantly, also predicts basic fluid dynamic velocity (which reached maximum 0.7 m s −1 ), pressure enclosed film, motion fluid, which have not been found previous models. seen experimentation, pockets under electrodes interesting Everything considered, connects electrical, mechanical, systems, thus providing more detail about system facilitating shift current approach modeling designing these actuators.