| 卫星电缆网内部充电效应仿真分析 |
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| 引用本文： | 孙建军,张振龙,梁伟,岳赟,杨涛,韩建伟.卫星电缆网内部充电效应仿真分析[J].航天器环境工程,2014,31(2):173-177. |
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| 作者姓名： | 孙建军 张振龙 梁伟 岳赟 杨涛 韩建伟 |
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| 作者单位： | 1. 中国科学院 国家空间科学中心, 北京 100190;2. 中国科学院大学, 北京 100049;3. 上海卫星工程研究所, 上海 200240 |
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| 摘 要： | 电缆结构作为最常见的卫星上的介质-金属结构，只受到卫星蒙皮的保护，其内部充电效应须引起重视。针对卫星上常见的电缆网结构进行了分析，使用内部充电三维仿真软件计算分析了GEO卫星上几种不同型号电缆对应不同蒙皮厚度下的充电效应，并对弯曲电缆、蒙皮孔洞处的电缆、电缆固定件等结构的简化模型进行了仿真分析。结果显示，在GEO恶劣电子环境下，单一卫星电缆会因为内部充电效应带上一定的负电位，在绝缘皮较厚或电缆处于蒙皮孔洞处等情况下，充电负电位会升高；电缆固定件介质块的充电电位与介质材料的尺寸有关，会带来较高的放电风险。
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| 关 键 词： | 内部充电 卫星 电缆 三维仿真 |
| 收稿时间： | 2014/1/28 0:00:00 |
| 修稿时间： | 2014/3/24 0:00:00 |
Simulation of internal charging for electric cables used in the satellite |
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| Sun Jianjun,Zhang Zhenlong,Liang Wei,Yue Yun,Yang Tao,Han Jianwei.Simulation of internal charging for electric cables used in the satellite[J].Spacecraft Environment Engineering,2014,31(2):173-177. |
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| Authors: | Sun Jianjun Zhang Zhenlong Liang Wei Yue Yun Yang Tao Han Jianwei |
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| Institution: | 1. National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Shanghai Institute of Satellite Engineering, Shanghai 200240, China |
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| Abstract: | As the most commonly used structure of dielectrics in the satellite, the electric cable is protected only by the satellite skin, its internal charging-discharging must be considered as an important issue. The charging of several types of cables in the GEO satellite is analyzed by using a three-dimensional simulation software, several typical structures such as the curved cable, the exposed cable, the cable fixed device are analyzed. It is shown that the charge can build up in cable dielectrics, and the charging potential will even increase to the breakdown point under some conditions. |
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| Keywords: | internal charging satellite electric cables 3D simulation |
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