航天推进技术研究院主办
[1]徐亚男,康小录,余水淋,等.磁屏蔽霍尔推力器磁场设计及实验验证[J].火箭推进,2019,45(05):59-65.
XU Yanan,KANG Xiaolu,YU Shuilin,et al.Magnetic field design and experimental verification of magnetic shielded Hall thruster[J].Journal of Rocket Propulsion,2019,45(05):59-65.
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XU Yanan,KANG Xiaolu,YU Shuilin,et al.Magnetic field design and experimental verification of magnetic shielded Hall thruster[J].Journal of Rocket Propulsion,2019,45(05):59-65.
磁屏蔽霍尔推力器磁场设计及实验验证
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
45
期数:
2019年05期
页码:
59-65
栏目:
研究与设计
出版日期:
2019-10-30
- Title:
- Magnetic field design and experimental verification of magnetic shielded Hall thruster
- 文章编号:
- 1672-9374(2019)05-0059-07
- Keywords:
- magnetic shielding; magnetic field design; wall corrosion
- 分类号:
- V439
- 文献标志码:
- A
- 摘要:
- 磁屏蔽能够有效减缓等离子体对霍尔推力器放电室壁面的腐蚀,是延长推力器寿命的有效途径,可以将霍尔推力器的寿命提高至满足长寿命航天任务要求的水平,有巨大的发展潜力。对磁屏蔽技术原理进行了分析,以口径120 mm的霍尔推力器为对象进行了磁场设计和验证实验。提出了一种壁面磁力线向阳极弯曲程度最大且与壁面尽量不相交的磁场构形,是该实验样机壁面磁力线等势程度最高的构形,10 h点火后磁屏蔽构形壁面腐蚀状况与传统构形壁面相比,全部壁面被沉积的黑色物质覆盖,显著减少了离子对放电室壁面的腐蚀。验证了该磁屏蔽磁场构形的显著效果,并对该磁屏蔽霍尔推力器的性能进行了初步研究,阳极流量62 sccm、放电电压300 V下的最优效率为54.23%,对应的羽流状态为“长筒状”。
- Abstract:
- Magnetic shielding can effectively reduce the erosion of plasma on the wall of Hall thruster discharge chamber.It is an effective way to prolong the life of the thruster, which can improve the life of Hall thruster to meet the requirements of long-life space missions.So it has great potential for development.In this paper, the principle of magnetic shielding technology was analyzed, and the magnetic field design and verification experiments were carried out for a 120 mm Hall thruster.A magnetic field configuration with the maximum bending degree of the near-wall magnetic line to the anode and the maximum disjunction with the wall was proposed, which is the configuration whose near-wall magnetic line is the highest isopotential in the experimental prototype.The erosion of the wall of the magnetic shielding configuration was compared with that of traditional configuration after 10 hours of ignition.The former is covered by deposited carbon powder, which shows that magnetic shielding can significantly reduce the ion erosion on the wall of the discharge chamber.The remarkable effect of the magnetic shielding field configuration was verified.Then the performance of the magnetic shielding Hall thruster was preliminarily studied.The optimum efficiency of the thruster is 54.23% at 62sccm anode flow and 300 V discharge voltage, which corresponds to plume state "long cylinder".
参考文献/References:
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备注/Memo
收稿日期:2018-11-21; 修回日期:2019-01-16基金项目:航天装备基金(6141B061405)作者简介:徐亚男(1994—),女,硕士,研究领域为空间电推进,磁屏蔽霍尔推力器
更新日期/Last Update:
2019-10-25