深空探测学报2018，Vol.5Issue(4)：361-366,6.DOI:10.15982/j.issn.2095-7777.2018.04.006
空间核电推进系统比质量优化建模及其木星探测应用分析
Specific Mass Optimization Modeling of Space Nuclear Electric Propulsion System for Jupiter Exploration Mission
周成 1吴延龙 2魏延明 1李永 1王戈 1丛云天 2孙鲲 1王磊1
作者信息
- 1. 北京控制工程研究所,北京 100191
- 2. 中国空间技术研究院,北京 100094
- 折叠
摘要
Abstract
The space nuclear electric propulsion (NEP) system is a revolutionary space propulsion technology that converts nuclear heat energy into electrical energy and drives high-power electric thrusters to generate thrust. Compared with traditional propulsion technology, NEP has the advantages of high specific impulse, high power and long life, which is very suitable for largescale deep space exploration missions in the future. In this paper, the specific mass model of high power NEP system is established based on NEP system composition and the theory of small thrust orbit to obtain the maximum payload ratio. The complex coupling relation of orbit time, specific mass, power and payload ratio of NEP spacecraft can be decoupled by this model, which provides a computational basis for task optimization. The model was used to evaluate the technical specifications of the NEP system to complete the NASA Juno space mission. The calculation shows that when the specific mass of the NEP system reaches 4.8kg/kWe, it can the ground transfer time of the Juno space mission from 2266 days to 665 days, and the payload from 160kg to 1179kg, which greatly improves the spacecraft's detection capability and providing a useful reference for subsequent design.关键词
比质量/核电推进/木星探测/优化设计/有效载荷比Key words
specific mass/nuclear power propulsion/Jupiter exploration/optimization design/payload ratio分类
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周成,吴延龙,魏延明,李永,王戈,丛云天,孙鲲,王磊..空间核电推进系统比质量优化建模及其木星探测应用分析[J].深空探测学报,2018,5(4):361-366,6.
