ON APPLIED METHODS OF CALCULATING PIEZOELECTRIC GENERRATORS FOR ENERGY HARVESTING DEVICES

Abstract

In this paper, we present applied methods for calculating the performance characteristics of various models of cantilever piezoelectric generators in the presence of a proof mass in their construction. These methods were obtained on the basis of a previously developed mathematical model that takes into account the design features of real generator designs. Accounting for these features occurs due to the division of the beam into segments with different electromechanical properties. At the end of the work, a numerical analysis of the output characteristics of the generator was performed in the case of an incomplete piezoelectric substrate coating. The analysis showed that there is such a value for the length of the piezoelectric elements on which the maximum output values of electrical voltage and power are reached.