Due to the existence of various high-frequency internal disturbances, high-precision spacecraft usually need to be designed for vibration isolation, while passive vibration isolation devices are widely used. In the design of passive vibration isolation device, there is a strong conflict between the suppression of resonance response peak and isolation of medium and high frequency vibration, which requires multi-objective optimization design. The dynamic model of the vibration isolation system is established, and the multi-objective optimization model with the peak amplitude of the transfer function and the attenuation of the medium and high frequency as the objective function is proposed. The design method of multi-objective optimization for the single-stage and two-stage vibration isolation devices based on the decomposition multi-objective evolutionary algorithm is proposed. The multi degree of freedom active vibration isolation and accurate tracking orientation based on the intelligent actuator are proposed in the space telescope and the pre positioning Advanced spacecraft such as police satellite, space laser communication and remote sensing satellite are widely used. Compared with the traditional passive vibration isolation, the active vibration isolation has a better suppression effect on the low-frequency vibration and random vibration, and the multi degree of freedom platform composed of intelligent actuators can operate the sensitive load precisely, making up for the lack of body attitude control. With the rapid development of aerospace technology, the existing vibration isolation technology is difficult to meet the requirements of sensitive loads on the harsh mechanical environment, and the robustness is poor, so the precise modeling and control of intelligent actuators also need in-depth study.

For many years, the research on active vibration isolation and precise orientation of multiple degrees of freedom for spacecraft sensitive loads has been focused on, and some practical progress has been made.