CubeSat Separation Parameter Optimization.

To implement noninterference deployment and meet the initial orbital attitude requirements of CubeSat, the CubeSat separation process is designed, theoretical analyzed and parameter optimized. Aiming at the direct-driving kinematic scheme of separation spring pushing CubeSat to open the door, the dynamic mathematical model for kinematic coupling system between door and CubeSat in the process of separation is established. By using the model, the feasibility of structure parameter in this scheme is determined rapidly and the movement interference can be avoided. Based on the above analysis, the non-smooth dynamic model containing contact and collision is established by the software of ADAMS, which can conduct the dynamics simulation for CubeSat deploying process. Then the key influence factors of separation attitude are obtained and the parameter optimization and improvement are completed. The simulation analysis and test results show that, the deploying mechanism can realize the noninterference separation and meet the requirements of the initial separation attitude, and has successfully realized the high-precision on-orbit deployment of two CubeSats.