宇航学报 ›› 2016, Vol. 37 ›› Issue (2): 203-208.doi: 10.3873/j.issn.1000-1328.2016.02.010

• 推进技术与动力 • 上一篇    下一篇

一种用于临近空间飞行器的吸气式电推进技术

陈盼,武志文,刘向阳,谢侃,王宁飞   

  1. 北京理工大学,北京100081
  • 收稿日期:2015-03-18 修回日期:2015-09-21 出版日期:2016-02-15 发布日期:2016-02-25
  • 基金资助:

    高等学校博士学科点专项科研基金(20121101120004)

An Air Breathing Electric Thruster for Near Space Vehicle

CHEN Pan, WU Zhi wen, LIU Xiang yang, XIE Kan, WANG Ning fei   

  1. Beijing Institute of Technology, Beijing 100081, China
  • Received:2015-03-18 Revised:2015-09-21 Online:2016-02-15 Published:2016-02-25

摘要:

针对低速临近空间飞行器提出了一种新型吸气式电推进方案,该方案采用单介质阻挡放电(SDBD)作为等离子体源,因此能在较大气压范围(数Pa~1atm)内电离大气产生等离子体并产生推力。为探究该吸气式电推进方案的推力性能,测量了实验样机在多个气压和电压条件下产生的推力。推力测量结果显示在10~90kPa气压范围内,实验样机产生的推力在10 2~10 3μN量级;气压一定时,产生的推力与驱动电压呈幂次相关;而电压一定时,随着气压自1atm逐渐降低,产生的推力先增大后减小,且达到最大推力的气压与所加驱动电压相关。

关键词: 吸气式电推进, 临近空间飞行器, 单介质阻挡放电

Abstract:

An air-breathing electric thruster, which uses the Single Dielectric Barrier Discharge (SDBD) technique to generate the plasma, is proposed in this paper for near-space propulsion missions. Using the SDBD plasma source, this air-breathing electric thruster can theoretically operate in a wide range of pressure (from several Pa to 1atm). To investigate the performance of this kind of air-breathing electric thruster, a simple thruster is manufactured and the thrust it produces under different ambient pressure and applied voltage conditions are measurement. The measuring results shows that under a moderate applied voltage, when the pressure ranges from 10〖KG*9〗kPa to 90kPa, the thrust is on the order of 10 2~10 3μN. At a certain pressure, the power law correlation is found between the thrust and the applied voltage. With a constant voltage, the thrust increases first to a maximum and then decreases with the gradual decrease of pressure, and the pressure at which the maximum thrust is obtained is a function of the applied voltage.

Key words: Air-breathing electric propulsion, Near-space vehicle, Single dielectric barrier discharge

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