中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2013, Vol. 39 ›› Issue (4): 54-58.doi: 10.3969/j.issn.1674-1579.2013.04.011

• 技术交流 • 上一篇    下一篇

LIPS-200离子推力器关键部组件寿命分析

  

  • 出版日期:2013-08-26 发布日期:2013-08-27
  • 基金资助:

    *真空低温技术与物理重点实验室基金资助项目(9140C550211120C5501).

Lifetime Analysis of the Key Components of LIPS-200 Ion Thruster

  • Online:2013-08-26 Published:2013-08-27

摘要: 基于离子推力器关键部组件前期寿命试验,结合离子推力器部组件失效模式的失效机理分析,对采用数值建模和理论分析方法开展的LIPS200离子推力器部组件寿命理论分析进展情况进行了总结,包括栅极系统电子反流失效分析、加速栅结构失效分析和空心阴极发射体耗尽失效分析,分析得到部组件的寿命,结果显示离子推力器寿命满足设计要求.分析结果对离子推力器寿命评价和性能改进具有参考意义.

关键词: 离子推力器, 寿命, 可靠性, 空心阴极, 栅极系统

Abstract: In combination with the results of the failure mechanism, which was based upon the previous life test of critical components of LIPS-200 ion thruster, this paper synthesizes the academic progress with respect to the lifetime of ion propulsion system by numerical simulation and theoretical analysis. The progress comprises several segments, such as the analysis of electron backstreaming of ion optics, structure failure of accelerator grid and the absolute depletion failure mode of hollow cathode emitter. A credible life range of critical components is derived. The result shows that the ion thruster can satisfy the design configuration. Furthermore, it can provide reference for the lifetime evaluation and performance optimization of ion thruster.

Key words: ion thruster, lifetime, reliability, hollow cathode, grid system

中图分类号: 

  • V439+.1