Abstract:During the flight process, the aircraft load is affected by external disturbances in different frequency bands, resulting in problems such as unclear picture of the load. In this paper, a passive-integrated vibration isolation platform model is established for this problem, and how to use the characteristic model idea to control the active vibration isolation system of the platform to suppress the vibration of the table. Firstly, the giant magnetostrictive actuator is selected as the active control component to establish the active-passive integrated vibration isolation platform model. Then the platform model based on displacement tracking is designed according to the platform model of force tracking. Then the characteristic model of displacement tracking vibration isolation platform is established. And the estimated state variables and the characteristic segment based golden section control and logical differential control are combined to control the active vibration isolation control system of the vibration isolation platform. Finally, the effectiveness of the controller designed in this paper is verified by