关键词: 柔性卷绕式太阳电池阵, 卷绕预紧力, 减振防护, 聚酰亚胺泡棉

Abstract: To address the structural safety of flexible roll-out solar array in the vibration environment during the launch phase, an innovative vibration reduction method based on winding preload and polyimide foam is proposed. This solution effectively improves the vibration resistance of the battery array without the need for additional complex structures, simply by adjusting the winding preload and introducing a polyimide foam vibration damping layer. The study first establishes a refined finite element simulation model of a flexible wound solar array, and then evaluates the effects of different vibration frequencies, amplitudes and preload forces on the structural safety of the array. In addition, vibration experiments on a small engineering prototype verified the vibration damping effect of the scheme in practical applications, and the results show that the design can significantly reduce the strain response of the CIC cell, and the vibration damping efficiency reaches more than 60%. The high consistency of the simulation and experimental results indicates that the vibration damping scheme has strong engineering feasibility and practical application potential.

Key words: roll-out solar array, winding preload, vibration reduction design, polyimide foam