Experimentally investigating the effect of viscoelastic joint of a cantilever beam containing piezoelectric patch on the harvested energy

The purpose of this study was to examine the effect connecting beam main structure considering viscoelastic property, which affects rate electrical energy harvested from piezoelectric patch connected aluminum beam. In research, connection vibrator considered obtain more accurate results. Viscoelastic material decreases amount stress and strain along as well path due its softness; thus, less potential difference is expected be produced than rigid connection. First, deformed by a base harmonic excitation on containing path, generates an electric both sides piezoelectric. study, behavior with under loading examined based experimental testing 3D finite analysis. experiment performed rotating unbalance system create adhesive bolts nuts. element method used for numerical solution Ansys software. in analysis 5A type two layers brass layer. simulation modeled form using special environment. order solve problem, input acceleration. diagrams revealed that joint joint. addition, modeling Kelvin–Voigt Maxwell mechanical model shows results these models are consistent result obtained standard solid Electrical power were drawn different resistances. It obvious increased increasing frequency. Finally, compared harvesting experimentally verification.