The purpose is to investigate the performance of cone dielectric elastomer actuator (DEA) by experiment and FEM
simulation. Two working equilibrium positions of cone DEA, which correspond to its initial displacement and
displacement output with voltage off and on respectively, are determined through the analysis on its working principle.
Experiments show that analytical results accord with experimental ones, and work output in a workcycle is hereby
calculated. Actuator can respond quickly when voltage is applied and can return to its original position rapidly when
voltage is released. Also, FEM simulation is used to obtain the movement of cone DEA in advance. Simulation results
agree well with experimental ones and prove the feasibility of simulation. Also, causes for small difference between
them in displacement output are analyzed.