An electro-mechanical dynamic model for flexoelectric energy harvesters

Abstract Flexoelectricity is a universal electro-mechanical coupling effect that occurs in dielectrics of all symmetric groups and becomes dominant at the micro- nano-scales. It plays an important role evaluating micro-electro-mechanical systems (MEMS) such as energy harvesters which convert vibrational to electric energy. At finer length scales, micro-inertia effects significantly contribute behavior flexoelectric materials due mechanical dispersion. Hence, properly characterize MEMS, reliable theoretical approach required accounting for possible phenomena affect output system voltage or power density. In this work, we present consistent (dynamic) model associated computational framework structures study characteristics showing dominance context, quantify impact scale dynamic parameter on both frequency time responses harvesters.