CAJ | 학술논문

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。
전람결구작위최상견적위성상적개질-금속결구，지수도위성몽피적보호，기내부충전효응수인기중시。침대위성상상견적전람망결구진행료분석，사용내부충전삼유방진연건계산분석료GEO위성상궤충불동형호전람대응불동몽피후도하적충전효응，병대만곡전람、몽피공동처적전람、전람고정건등결구적간화모형진행료방진분석。결과현시，재GEO악렬전자배경하，단일위성전람회인위내부충전효응대상일정적부전위，재절연피교후혹전람처우몽피공동처등정황하，충전부전위회승고；전람고정건개질괴적충전전위여개질재료적척촌유관，회대래교고적방전풍험。
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.