Piezoelectric Vibration Energy Harvesters (PVEH)

This chapter presents the modelling of piezoelectric cantilever energy harvesters. First, a general overview of modelling strategies is given. The focus is then moved toward lumped-parameters models. A layered beam energy harvester model is derived based on the classical Euler-Bernoulli assumptions and linear constitutive law. Next, a one-dimensional model taking into account three-dimensional effects is presented, again with linear piezoelectricity. Then an in-depth study of a nonlinear, nonconservative electroelastic model is presented, which has been appropriately calibrated through experimental activities.