Modeling and control of a magnetostrictive actuator

Modeling and control of a magnetostrictive actuator

Title : Modeling and control of a magnetostrictive actuator
Authors :
Tan, Xiaobo
Baras, John, S.
Conference : 41st IEEE Conference on Decision and Control pp. 866-872
Date: December 10 - December 13, 2002

The rate-dependent hysteresis existing in magnetostrictive actuators presents a challenge in control of these actuators. In this paper we propose a novel dynamical model for the hysteresis in a thin magnetostrictive actuator. The model features the coupling of the Preisach operator with an ordinary differential equation (ODE). We prove the well-posedness of the model, study the parameter identification methods, and propose an inverse control scheme. The effectiveness of the identification and inverse control schemes is demonstrated through experimental results.

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