| 30cm口径离子推力器热特性模拟分析 |
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| 引用本文： | 孙明明,张天平,王亮. 30cm口径离子推力器热特性模拟分析[J]. 真空与低温, 2014, 0(3): 158-162 |
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| 作者姓名： | 孙明明 张天平 王亮 |
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| 作者单位： | 兰州空间技术物理研究所真空低温技术与物理重点实验室,甘肃兰州730000 |
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| 摘 要： | 为了对30 cm口径LIPS-300推力器的热设计提出合理建议,利用有限元分析软件对LIPS-300离子推力器进行地面稳态及热应力分析。结果显示处于大流量点火工作状态时,离子推力器的高温部件主要是阳极筒锥段、屏栅筒以及后极靴,当推力器达到稳态后,阳极筒和后外壳锥段的热形变占主要地位。根据仿真分析得出的热设计优化结论是提高LIPS-300离子推力器内外部件的表面发射率是可以降低内部部件温度,并满足磁钢工作温度上限的有效方法。
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| 关 键 词： | 30 cm口径 离子推力器 热分析 温度分布 |
THERMAL ANALYSIS OF 30 cm DIAMETER THRUSTER |
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| SUN Ming-ming,ZHANG Tian-ping,WANG Liang. THERMAL ANALYSIS OF 30 cm DIAMETER THRUSTER[J]. Vacuum and Cryogenics, 2014, 0(3): 158-162 |
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| Authors: | SUN Ming-ming ZHANG Tian-ping WANG Liang |
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| Affiliation: | (Science and Technology on Vacuum and Cryogenics Technology and Physics Laboratory, Lanzhou Institute of Space Technology and Physics,Lanzhou Gansu 730000, China) |
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| Abstract: | For reasonable advice to 30 cm diameter ion thruster＇s thermal design,the thermal behaviour of a LIPS-300ion thruster is described by finite element analysis software. Steady-state temperature distributions and thermal deformation for the thruster are simulated. The Steady-state thermal analysis results show the high temperature components are taper discharge chamber,upstream cylindrical and downstream harness. The thermal deformation analysis results exhibit discharge chamber and outer shell deformation is the chief influence factor. The simulation results suggest that increase emissivity and reduce absorptivity of thruster components will reduce the temperature distribution effectively. |
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| Keywords: | 30 cm diameter ion thruster thermal analysis temperature distribution |
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