| Influence of mechanical damage generated by small space debris on electrostatic discharge | |
| Cai, MingHui; Li, HongWei; Han, JianWei; Cai, MingHui (caiminghui@nssc.ac.cn) | |
| Department | 保障部/保障与试验验证中心 |
| Source Publication | Science China-Earth Sciences
 |
| 2015 | |
| Pages | 1-7 |
| ISSN | 1674-7313 |
| Language | 英语 |
| Abstract | Recent studies have indicated that hypervelocity impacts by meteoroids and space debris can induce spacecraft anomalies. However, the basic physical process through which space debris impacts cause anomalies is not entirely clear. Currently, impact-generated plasma is thought to be the primary cause of electrical spacecraft anomalies, while the effects of impact- generated mechanical damage have rarely been researched. This paper presents new evidence showing that impact- generated mechanical damage strongly influences electrostatic discharge. Hypervelocity impact experiments were conducted in a plasma drag particle accelerator, using particles with diameters of 200–500 µm and velocities of 2–7 km/s. The impact-generated mechanical damage on a specimen surface was measured by a stereoscopic microscope and 3D Profilometer and it indicated that microscopic irregularities around the impact crater could be responsible for local electric field enhancement. Furthermore, the influence of impact-generated mechanical damage on electrostatic discharge was simulated in an inverted potential gradient situation. The experimental results show that the electrostatic discharge voltage threshold was significantly reduced after the specimen was impacted by particles. © 2015 Science China Press and Springer-Verlag Berlin Heidelberg |
| Indexed By | SCI ; EI |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/5264 |
| Collection | 保障部/保障与试验验证中心 |
| Corresponding Author | Cai, MingHui (caiminghui@nssc.ac.cn) |
| Recommended Citation GB/T 7714 | Cai, MingHui,Li, HongWei,Han, JianWei,et al. Influence of mechanical damage generated by small space debris on electrostatic discharge[J]. Science China-Earth Sciences,2015:1-7. |
| APA | Cai, MingHui,Li, HongWei,Han, JianWei,&Cai, MingHui .(2015).Influence of mechanical damage generated by small space debris on electrostatic discharge.Science China-Earth Sciences,1-7. |
| MLA | Cai, MingHui,et al."Influence of mechanical damage generated by small space debris on electrostatic discharge".Science China-Earth Sciences (2015):1-7. |
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| 2016593533-539.pdf（5428KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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