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Proceedings Paper

Nonlinear modeling of piezoelectric layered beams
Author(s): Mehdi Saghafi; Nader Jalili; Ali Meghdari
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Paper Abstract

The dynamic equations of piezoelectric benders are studied in this paper, considering nonlinear behavior of piezoceramics. A second order approximation of constitutive equations of piezoceramics is used to account for reversible nonlinearities. Transversal and longitudinal deflections at the tip of the beam and the blocking force as well as sensor equations (output charge as a function of external loads) are obtained under static conditions. The static equations are then used to construct a linear dynamic model for actuation. A Bouc-Wen type hysteresis model is employed in order to account for the irreversible nonlinearities. The final equation of motion is in the form of well-known Hill's equation.

Paper Details

Date Published: 27 April 2007
PDF: 13 pages
Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 652528 (27 April 2007); doi: 10.1117/12.715816
Show Author Affiliations
Mehdi Saghafi, Sharif Univ. of Technology (Iran)
Nader Jalili, Clemson Univ. (United States)
Ali Meghdari, Sharif Univ. of Technology (Iran)

Published in SPIE Proceedings Vol. 6525:
Active and Passive Smart Structures and Integrated Systems 2007
Yuji Matsuzaki; Mehdi Ahmadian; Donald J. Leo, Editor(s)

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