Modelling of soft generator combining electret and dielectric elastomer

Dielectric elastomer generators (DEGs) are a promising technology for soft applications involving fluid or human interactions thanks to their high energy density and ability to couple directly on mechanical ambient sources. Electret can be used to replace the high external voltage source necessary to this electrostatic generator. These soft hybrid generators require thus a reliable non-linear multi-physic models to estimate their performances and to design new innovative structure. We present here an analytic and numeric model for structures combining dielectric elastomer and electrets.