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Proceedings Paper

Modeling the dynamic behavior of electrostrictive actuators
Author(s): Craig L. Hom; Natarajan Shankar
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Paper Abstract

This paper examines the dynamic response of electrostrictive rod actuators. A non-linear constitutive model for electrostrictors is used to obtain periodic solutions for the actuator's displacement and polarization. The method accounts for both inertial forces and a non-homogeneous stress distribution in the device. Results of the analysis predict displacement distortion and power requirements for the actuators as a function of excitation frequency. Resonance behavior of the actuator and the effect of electro-mechanical coupling are investigated. Voltage control parameters for the actuators are studied to determine the optimum control scheme for minimizing distortion of the displacement output.

Paper Details

Date Published: 6 June 1997
PDF: 13 pages
Proc. SPIE 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems, (6 June 1997); doi: 10.1117/12.275652
Show Author Affiliations
Craig L. Hom, Lockheed Martin Missiles & Space (United States)
Natarajan Shankar, Lockheed Martin Missiles & Space (United States)


Published in SPIE Proceedings Vol. 3041:
Smart Structures and Materials 1997: Smart Structures and Integrated Systems
Mark E. Regelbrugge, Editor(s)

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