Modeling of Time-delay in Giant Magnetostrictive Actuator and Smith Strategy

The time-delay and its causes in giant magnetostrictive actuator were analyzed.Besides, the controllable power and inductance were integrated with experimental techniques when modeling of time-delay in giant magnetostrictive actuator.The integrated way demonstrated a more efficient effect comparing with conventional methods.Also, Smith strategy was proposed to solve time-delay in giant magnetostrictive actuator.The influence of time-delay in giant magnetostrictive actuator dynamic performances was discussed, especially in condition of disturbance and variational parameters.A new solution satisfying both dynamics and robust was proposed based on comparison experiments.