Satellite sailboard unfolding analogue simulation method based on data driving

Abstract

The invention relates to a satellite sailboard unfolding analogue simulation method based on data driving. The method comprises the following steps: S1, determining and obtaining an original input quantity of sailboard unfolding dynamics simulation; s2, in the unfolding process of the sailboard, taking a rigid body dynamic model as a satellite dynamic model, and carrying out polynomial interpolation fitting on the original input quantity to obtain a simulation input quantity acting on the rigid body dynamic model at each simulation moment; s3, after the sailboard is unfolded, taking the rigid-flexible coupling kinetic model as a satellite kinetic model, and calculating a vibration mode initial value and taking same as an integral initial value of the rigid-flexible coupling kinetic model;and S4, formulating a simulation time sequence flow of sailboard expansion. According to the invention, the real-time performance of simulation is ensured, the unfolding process of the sailboard and the influence on the satellite in the process can be simulated more truly, and the simulation credibility is improved.

Description

technical field [0001] The invention relates to a satellite sailboard deployment simulation method, in particular to a data-driven satellite sailboard deployment simulation simulation method. Background technique [0002] When the satellite is in the initial stage of orbiting, whether the solar panels can be successfully deployed will directly determine the success or failure of the mission. At present, with more and more types of satellite missions, the configuration, quality and installation position of the sailboards are also constantly changing, and the unfolding process of the sailboards has an increasingly significant impact on the satellite attitude. Therefore, if we can accurately simulate the influence of the entire sailboard deployment process on the attitude dynamics of the satellite in the ground simulation test, we can predict the possible risks in the deployment process in time, and then adjust the sailboard configuration, installation position, The deployment...

AI Technical Summary

Problems solved by technology

The accuracy of the model drops significantly when the amplitude of the sailboard vibration exceeds a certain threshold

In addition, the model generated by the finite element analysis software can more truly reflect the dynamic characteristics of the sailboard, but due to the large amount of calculation, it cannot be applied to real-time simulation at present

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