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Proceedings Paper

Modeling and identification of nonlinear electroelastic and dissipative parameters for PZT-5A and PZT-5H bimorphs: a dynamical systems approach
Author(s): Stephen Leadenham; Brian Ferri; Alper Erturk
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Paper Abstract

Electroelastic and dissipative nonlinearities of commonly used soft piezoelectrics (PZT-5A and PZT-5H) are pronounced in various engineering applications such as actuation, sensing, vibration control, and most recently, in energy harvesting from dynamical systems. The present work investigates the nonlinear nonconservative dynamic behavior of bimorph piezoelectric cantilevers under low-to-high excitation levels with a focus on most popular soft piezoceramics: PZT-5A and PZT-5H. A unified mathematical framework we recently developed is analyzed by using the method of harmonic balance to identify and validate nonlinear system parameters based on a set of rigorous experiments for different samples.

Paper Details

Date Published: 2 April 2015
PDF: 11 pages
Proc. SPIE 9431, Active and Passive Smart Structures and Integrated Systems 2015, 94311I (2 April 2015); doi: 10.1117/12.2084455
Show Author Affiliations
Stephen Leadenham, Georgia Institute of Technology (United States)
Brian Ferri, Georgia Institute of Technology (United States)
Alper Erturk, Georgia Institute of Technology (United States)

Published in SPIE Proceedings Vol. 9431:
Active and Passive Smart Structures and Integrated Systems 2015
Wei-Hsin Liao, Editor(s)

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