摘要
研究了电动力缆绳拉力产生的原理,建立了电动力缆绳离轨的数学模型和精确地磁场模型,并用Matlab对电动力缆绳离轨的过程进行了数学仿真,对离轨时间进行了预测,为以后进行电动力缆绳空间实验提供依据。离轨时间与地磁场模型的精确程度有密切关系,地磁场模型越精确,估算的离轨时间越接近真实值。
Space debris is a potential hazard to the safety of normal operating satellites. So it is necessary to take practicable measure to lead the useless satellites reenter into the Earth＇s atmosphere. Electro-dynamic tethers provide a very promising propulsion system for deorbiting of LEO satellites. In this application, the Lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro-dynamic drag leading to a fast orbital decay. This paper presents an intensive study of the process of deorbiting using electro-dynamic tether system and forecast the de-orbiting time under accurate geomagnetic models.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2007年第6期1476-1480,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
长江学者和创新团队发展计划资助项目(IRT0520)
关键词
航天器结构与设计
空间碎片
电动力缆绳
离轨
精确地磁场模型
spacecraft structure and design
space debris
electro-dynamic tether
deorbit
accurate geomagnetic models
