Abstract

As the space environment has deteriorated, it is necessary to monitor the impact events of space debris on orbiting spacecraft. The PVDF piezoelectric film release charge by the impact and its response is fast. The rest of the PVDF film can be re-measured. It can be used to detect space debris impacting spacecraft events, which has obvious advantages in real-time space detection and sensing. In this paper, penetration and cratering experiments of the target were carried out. The projectile directly high-speed impacted the target with PVDF piezoelectric film by the light gas gun loading. The results show that the relationship between damage mode and response characteristics is obtained. Based on the time-of-flight method, the velocity of the projectile and the time of action in the target are analyzed. The response signals of the penetration and cratering experiments are compared and analyzed, which can be used to identify the damage mode of the target plate.

中文翻译：

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基于PVDF压电薄膜的高速撞击目标损伤模式识别

摘要

随着空间环境的恶化，有必要监测空间碎片在轨道飞行器上的撞击事件。PVDF压电薄膜通过冲击释放电荷，并且其响应速度很快。其余的PVDF膜可以重新测量。它可用于检测影响航天器事件的空间碎片，这在实时空间检测和感测中具有明显的优势。在本文中，进行了目标的穿透和缩孔实验。弹丸通过轻型气枪加载直接高速撞击有PVDF压电膜的目标。结果表明，获得了损伤模式与响应特性之间的关系。基于飞行时间方法，分析了弹丸的速度和在目标中的作用时间。