Piezoelectric stack energy harvesting with a force amplification frame: Modeling and experiment Academic Article

abstract

• This article presents the modeling and experimental validation of a piezoelectric stack energy harvester with a flexure-free convex force amplification frame to convert walking force into electricity. Compared to a stand-alone piezoelectric stack, experiments show an 8 times greater voltage output and a 112 times greater power output of such an energy harvester. A finite element method is used to provide a more accurate electromechanical model using Hamiltons principle and the piezoelectric constitutive equations. Simulation results from such a finite element method agree with the single-degree-of-freedom model. Experimental measurement shows the percentage errors of the output power are of 3.53% for the finite element method and 8.04% for the single-degree-of-freedom model of the piezoelectric stack energy harvester.

authors

• Wang, Ya

published proceedings

• Journal of Intelligent Material Systems and Structures

author list (cited authors)

• Wang, Y. a., Chen, W., & Guzman, P.

citation count

• 39

complete list of authors

• Wang, Ya||Chen, Wusi||Guzman, Plinio

publication date

• October 2016

publisher

• SAGE Publications  Publisher

published in

• Journal of Intelligent Material Systems and Structures  Journal

keywords

• 40 Engineering
• 4001 Aerospace Engineering
• 7 Affordable And Clean Energy

Digital Object Identifier (DOI)

• 10.1177/1045389x16629568

start page

• 2324

end page

• 2332

volume

• 27

issue

• 17

URL

• http://dx.doi.org/10.1177/1045389x16629568

user-defined tag

• 7 Affordable and Clean Energy