Modeling the dynamic behavior of electrostrictive actuators

Craig L. Hom; Natarajan Shankar

doi:10.1117/12.275652

6 June 1997 Modeling the dynamic behavior of electrostrictive actuators

Craig L. Hom, Natarajan Shankar

Proceedings Volume 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems; (1997) https://doi.org/10.1117/12.275652
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Craig L. Hom and Natarajan Shankar "Modeling the dynamic behavior of electrostrictive actuators", Proc. SPIE 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems, (6 June 1997); https://doi.org/10.1117/12.275652

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