Kyushu University
Kyushu University
Kyushu University
Mitsubishi Electric Corporation Kamakura Works
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
雑誌名
第25回宇宙エネルギーシンポジウム 平成17年度
雑誌名(英)
The Twenty-fifth Space Energy Symposium March 10, 2006
ページ
50 - 54
発行年
2006-06
抄録（英）
We know that debris impacts to solar cell paddles in GEO (Geostationary Earth Orbit) are very often, so the damages of solar cell paddles have a great influence on the operation of a satellite. This paper summarizes some of low-velocity solar cell impact tests conducted at the Kyushu University. The objective of the tests was to investigate the influence of impacts on the capacity of power generation of solar cells and the connection between the impact velocity and the damage shape of solar cells. The experiments stated in this paper were performed at low velocities of 91 m/s, 142 m/s, 189 m/s, 250 m/s, 284 m/s, 668 m/s and other three values using 47-milligram aluminum alloy spheres. The target plates were solar cells attached to aluminum-honeycomb sandwich panels having CFRP (Carbon Fiber Reinforced Plastic) face-sheets. The solar cells were 60 mm x 40 mm x 0.24 mm in size and the aluminum-honeycomb sandwich panels having CFRP face-sheets were 100 mm x 100 mm x 10 mm in size. The capacity of power generation of solar cells was lost when a slight damage was found, but the capacity was hardly lost when a comparatively large damage was found. The forecast of the impact velocity was possible to some degree from the damage level or the damage ratio. The damage level was defined by the diameters of hole of the target caused by an impact and the damage conditions of the target and the damage ratio was defined by the ratio of the diameters of hole caused by an impact to the diameter of a projectile. More detailed analysis results are presented in this paper.
スペースデブリの衝突による太陽電池セルの破損形態に関する研究
