Abstract
Our country's asteroid prober will use circular thin membrane solar arrays, which is the first time for China to use this technology. In this paper, the dynamics of the deployment of the circular thin-film solar arrays in space and under the simulated zero-gravity environment are compared. Firstly, the kinematics and dynamics of the circular solar thin-film arrays in zero gravity and low gravity environment are analyzed based on ADAMS. Results indicate the importance of gravity compensation accuracy in the ground experiment. This step is necessary as a reference for subsequent analysis. Besides, the zero-gravity compensation system is designed carefully for the circular solar arrays, which mainly uses the passive support method based on the air-pad to compensate for the gravity of the solar arrays. The normal deployment of the solar arrays will certainly be affected by the disturbing force generated by the zero-gravity test system. These effects are measured experimentally and introduced into ADMAS. A comparison of the kinematics & dynamics of the circular thin-film solar arrays between the real and the simulated zero-gravity environments shows the feasibility and limitations of this zero-gravity compensation system, which can guide engineering practice.
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