Share Email Print
cover

Proceedings Paper

Finite element modeling of beam bimorph piezoelectric power harvesters including visco-elasticity
Author(s): S. D. Yu; S. He; W. Li
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper presents a finite element procedure for modeling beam bimorph piezoelectric power harvesters including viscoelasticity. A three node beam finite element is employed to model the longitudinal and flexural response of the piezoelectric structure carrying an offset proof mass. Within a beam finite element, the proposed element permits a quintic polynomial shape function for lateral deformations and a quadratic polynomial shape function for the longitudinal deformation. The dynamic equations of the electromechanical system are established using the Lagrange equations method and solved for harmonic base motions. A series of experiments were carried out to quantify the visco-elasticity constant of a piezoelectric structure and validate the simulation results. Excellent agreement was observed between the measurement and simulation data for a range of operating parameter.

Paper Details

Date Published: 21 October 2009
PDF: 9 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749303 (21 October 2009); doi: 10.1117/12.839443
Show Author Affiliations
S. D. Yu, Ryerson Univ. (Canada)
S. He, Ryerson Univ. (Canada)
W. Li, Ryerson Univ. (Canada)


Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

© SPIE. Terms of Use
Back to Top