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Fast Evaluation of Demagnetizing Field in Three Dimensional Micromagnetics using Multipole Approximation
Computational micromagnetics in three dimensions is of increasing interest with the development of magnetostrictivesensors and actuators. <p>In solving the Landau-Lifshitz-Gilbert (LLG) equation, the governing equation of ...
Control of Hysteresis in Smart Actuators with Application to Micro-Positioning
Hysteresis in smart material actuators makes the effective use of these actuators quite challenging. The Preisach operator has been widely used to model smart material hysteresis. Motivated by positioning applications of ...
A Dynamic Model for Magnetostrictive Hysteresis
The rate-dependent hysteresis present in thin magnetostrictive actuators can be captured by a dynamic model, consisting of a Preisach operator coupled to an ordinary differential equation in an unusual way. The model ...