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The mathematical model of Giant Magnetostrictive Actuator is established. The simulation of the model for its dynamic performance with Simulink shows the curve of its characteristics under continuous current and frequency. It is shown that under continuous AC excitation amplitude, the greater the excitation frequency is, the smaller the output displacement is, and the greater the output force is; under continuous AC frequency excitation, as the excitation amplitude increases, the output displacement and output force are increased, and under fixed excitation, as the AC excitation frequency increases, the output displacement decreases. The conclusion establishes the theoretical basis to the following experiment on dynamic characteristic of the actuator and the active control of vibration of submarine mechanical equipment.

Research on Simulation for Dynamic Characteristics of Giant Magnetostrictive Actuator