卫星介质深层充电中的主要物理问题

	卫星介质深层充电中的主要物理问题
	黄建国 ; 陈东 ; 师立勤
刊名	空间科学学报
	2004
卷号	24 期号:5 页码:246-352
关键词	卫星介质深层充电高能电子计算机模拟
ISSN号	0254-6124
其他题名	KEY PHYSICAL PROBLEMS IN DEEP DIELECTRIC CHARGING ON SATELLITES
通讯作者	北京8701信箱
中文摘要	卫星介质深层充电效应是诱发地球同步轨道卫星运行故障和异常的重要因素之一,通过计算机模拟对介质深层充电的时间常数、电场特征、以及屏蔽、介质厚度和接地方式对充电所致最大电场的影响等主要物理问题进行了详细的分析,并给出了初步的防护措施.
英文摘要	Deep dielectric charging (DDC) is one of the key factors inducing malfunctions and failures on geo-synchronous satellites. In this paper, the mam problems such as charging time, electric field distribution, as well as influences on DDC-induced maximum field by shield, dielectric thickness and grounding patterns are studied in detail, and some results of computer simulation are introduced for the plannar model. In the meantime, some preliminary measures for DDC protection are re-commended accordingly. The charging time depends on both dielectric parameters and nux of high energetic electrons in the space enVironment．Fbr epoxy，a kind of usuaUy used dielectric material on sateUites，the ch缸ging time is in the order of hours．The electric neld distribution in the dielectric is determined by the grounding pattern．Fbr the case grounded on single side，the maximum field generally appears on the grounded side with the other side having zero neld． While fbr the case grounded on both sides，both sides have maximum fields，with values smaller than sin91e—grounded case． Moreover，the maximum 6eld in the dielectric is related to the thickness of the dielectric itself and the applied shield． The maximum field increases with the dielectric thickness to a saturated value．and decreases with the shield thickness．however，contribution of the shield over a certain thickness is neglegible．
学科主题	空间环境
资助信息	国家863青年基金项目资助
语种	中文
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/356]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	黄建国,陈东,师立勤. 卫星介质深层充电中的主要物理问题[J]. 空间科学学报,2004,24(5):246-352.
APA	黄建国,陈东,&师立勤.(2004).卫星介质深层充电中的主要物理问题.空间科学学报,24(5),246-352.
MLA	黄建国,et al."卫星介质深层充电中的主要物理问题".空间科学学报 24.5(2004):246-352.