Distributed structural actuation with electrostrictors

Michael L. R. Fripp; Nesbitt W. Hagood; Lana Luoma

doi:10.1117/12.175218

6 May 1994 Distributed structural actuation with electrostrictors

Michael L. R. Fripp, Nesbitt W. Hagood, Lana Luoma

Proceedings Volume 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems; (1994) https://doi.org/10.1117/12.175218
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

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.

Citation Download Citation

Michael L. R. Fripp, Nesbitt W. Hagood, and Lana Luoma "Distributed structural actuation with electrostrictors", Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); https://doi.org/10.1117/12.175218

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