In order to accurately describe the asymmetric rate-bias-dependent hysteresis of a Fe–Ga alloy magnetostrictive actuator, a comprehensive model, which is composed of a phenomenon model, describing hysteresis by the modified Bouc–Wen hysteresis operator, and a theoretical model, representing the dynamics characteristics, is put forward. The experimental system is setup to verify the performance of the comprehensive model. Results show that the modified Bouc–Wen model can effectively describe the dynamics and hysteresis characteristics of the Fe–Ga alloy magnetostrictive actuator. The results highlight significantly improved accuracy in the modelling of the magnetostrictive actuator.
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