sustained arc, space plasma, plasma interaction, space debris, impact damage, solar array coupon, hypervelocity impact, dielectric breakdown, short circuit
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
Kyushu Institute of Technology Graduate School of Engineering
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: 9th Spacecraft Charging Technology Conference
巻
JAXA-SP-05-001E
ページ
697 - 702
発行年
2005-08-01
抄録（英）
Recently solar array has become higher in potential and larger in capacitance. Therefore, possibility of collision between space debris and enlarged solar array has been pointed out. Actually, a lot of debris and dust impacts were confirmed on fuselage of retrieved satellite SFU and solar array paddle of satellite Eureca. If space debris collides with solar array of an orbit satellite, it causes generation of high-density plasma by debris impact induced dielectric breakdown of satellite component and the phenomenon called discharge. This discharge short circuit and current does not flow into a load of the satellite. And the very worst event by this discharge is operational end of the satellite. However, any events of discharge phenomenon by debris impact cannot be yet confirmed. But we cannot ignore such possibility of discharge by debris impact. The purpose of the present paper is to investigate discharge condition due to debris impact which yields us reduction of electric power of solar array, and to reduce influence of the impact on satellite missions. In this study, a solar array coupon was tested under hypervelocity impact in which a projectile was launched by a two-stage light gas gun installed in KIT. As a result, we verified discharge event in the hypervelocity impact ground test.
Preliminary study on sustained arc due to plasma excited by debris impact on the solar array coupon
49206078.pdf
(1.78MB)
