%0 Journal Article
%A Le, V. Duong
%A Pham, Manh Thang
%A Chebanenko, V.A.
%A Solovyev, A.N.
%A Nguyen, Van Chuong
%D 2017
%F SisLab:3239
%I World Scientific Publishing Europe Ltd.
%J International Journal of Applied Mechanics
%N 6
%P 1750084-1
%T Finite Element Modeling and Experimental Studies of Stack-Type Piezoelectric Energy Harvester
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3239/
%V 9
%X In this paper, closed-form coupled electromechanical one-dimensional (1-D) model and finite  element (FE) model for stack-type piezoelectric energy harvester (PEH) and delivery to a resistive  load available in the literature were proposed. We obtained the values of some parameters of 1-D  model and set the boundaries of its applicability based on the comparison of the resonance frequency  and output voltage between the FE model and 1-D model. The numerical modeling results of the  full-scale experiment with low-frequency pulse excitation of the stack-type PEH for the energy  storage device are described. PEH is a multilayer axisymmetric piezoceramic package. The  dependence between the output voltage and the current load rate under the harmonic and nonstationary  mechanical action of the PEH is studied. The experimental results-to-numerical  calculation correlation has shown their good coincidence, which allows using the analyzed  numerical models to optimize the PEH design at the given external action frequency and the active  resistance value of the external electric circuit. Besides, it found that the frequency dependence of  the output voltage of the stack-type PEH is of a complex nature depending both on the compressive  pulse loading level and the piezoelectric modulus value of the PEH sensitive element, and on the  electrical load resistance.  Keywords: Finite element (FE), piezoelectric energy harvester (PEH), 1-D model, approximate  effective mass, stack-type, resonant frequency.