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Proceedings Paper

Distributed structural actuation with electrostrictors
Author(s): Michael L. R. Fripp; Nesbitt W. Hagood; Lana Luoma
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Paper Abstract

This paper develops a model for the behavior of an electrostrictively coupled electromechanical system. The framework for the derivation of the governing equations is sufficiently general to model the dynamics of any nonlinear electroceramic actuated system which can be described by a set of constitutive relationships. The constitutive relations for electrostrictors are reviewed and are simplified to contain a single quadratic nonlinearity. By introducing the constitutive relations into Hamilton's equation and then assuming mode shapes, the general system equations are derived. Experimental validation of the equations is accomplished with an electrostrictive wafer surface-bonded to a cantilevered beam. The range of validity of the simplified constitutive relationships is also experimentally investigated.

Paper Details

Date Published: 6 May 1994
PDF: 15 pages
Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); doi: 10.1117/12.175218
Show Author Affiliations
Michael L. R. Fripp, Massachusetts Institute of Technology (United States)
Nesbitt W. Hagood, Massachusetts Institute of Technology (United States)
Lana Luoma, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 2190:
Smart Structures and Materials 1994: Smart Structures and Intelligent Systems
Nesbitt W. Hagood, Editor(s)

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