Paper
15 April 2016 Nonlinear modeling of MEMS piezoelectric energy harvesters
Y. C. Wang, T. W. Huang, Y. C. Shu, S. C. Lin, W. J. Wu
Author Affiliations +
Abstract
This article presents the modeling of nonlinear response of micro piezoelectric energy harvesters under amplified base excitation. The micro transducer is a composite cantilever beam made of the PZT thick film deposited on the stainless-steel substrate. The model is developed based on the Euler-Bernoulli beam theory considering geometric and inertia nonlinearities, and the reduced formulation is derived based on the Hamiltonian variational principle. The harmonic balance method is used to simulate the nonlinear frequency response under various magnitudes of excitation and electric loads. The hardening type of nonlinearity is predicted and is found to be in good agreement with experiment. However, the softening response is also observed in different samples fabricated under different conditions. Such disagreement is under investigation.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Y. C. Wang, T. W. Huang, Y. C. Shu, S. C. Lin, and W. J. Wu "Nonlinear modeling of MEMS piezoelectric energy harvesters", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97992D (15 April 2016); https://doi.org/10.1117/12.2218593
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Ferroelectric materials

Electrodes

Microelectromechanical systems

Transducers

Composites

Nonlinear response

Energy harvesting

Back to Top