Modeling of hysteresis nonlinearity based on generalized Bouc-Wen model for GMA

Abstract

In this paper, the classical and generalized Bouc-Wen models are used to describe the hysteresis loops of Giant Magnetostrictive Actuator (GMA) for the first time. The parameters of the models are optimized with Particle Swarm optimization (PSO) algorithm. The hysteresis loops of GMA are asymmetric, and the classical Bouc-Wen model can not describe such asymmetric hysteresis loops satisfactorily, but the generalized BoucWen model can describe asymmetric hysteresis loops better. Simulation results prove the correctness of the conclusion. © 2010 Springer-Verlag.