| 极板构型对脉冲等离子体推力器性能影响 |
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| 引用本文： | 张华,吴建军,何振,张代贤,鲁高飞. 极板构型对脉冲等离子体推力器性能影响[J]. 国防科技大学学报, 2014, 36(4): 5-9 |
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| 作者姓名： | 张华 吴建军 何振 张代贤 鲁高飞 |
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| 作者单位： | 国防科学技术大学航天科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 极板是脉冲等离子体推力器(PPT)的关键部件之一,极板构型对PPT性能有重要影响。分析表明:保持极板其他参数不变,增大极板张角或减少极板末端宽度都会提高推力器效率的理论上限。以理论分析为指导,分别对采用矩形、梯形和舌形三种形状极板的0°、28°、54°和74°张角共12套极板的PPT性能进行了实验研究,结果表明:对于不同形状的极板,极板张角对PPT性能的影响呈现出不同的规律;元冲量和单脉冲烧蚀质量随极板张角的变化规律基本相同;比冲随极板张角的增大先减小后增大,存在一个转折张角,对于不同形状的极板,其转折张角不同;在不同的极板张角下,极板形状对推力器效率具有不同的影响规律。
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| 关 键 词： | 脉冲等离子体推力器 极板形状 极板张角 性能 |
| 收稿时间： | 2013-12-24 |
| 修稿时间： | 2014-03-03 |
Effects of electrodes configuration on the performance of pulsed plasma thrusters |
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| ZHANG Hu,WU Jianjun,HE Zhen,ZHANG Daixian and LU Gaofei. Effects of electrodes configuration on the performance of pulsed plasma thrusters[J]. Journal of National University of Defense Technology, 2014, 36(4): 5-9 |
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| Authors: | ZHANG Hu WU Jianjun HE Zhen ZHANG Daixian LU Gaofei |
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| Affiliation: | College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | The electrode is one of the most important components of the pulsed plasma thruster(PPT), it has great influence on PPT performance. This paper analyzed the upper limitation of PPT efficiency theoretically, the results showed that the upper limitation of PPT efficiency increases by increasing the flare angle or decreasing the end width of electrodes. And then the impulse bit and the mass bit of different PPTs were measured by varying the flare angle and the end width of electrodes, the experimental results indicated that the flare angle has different effects on mass bit of PPTs for different electrode shapes; effects of flare angle on impulse bit are similar with effects of flare angle on mass bit for corresponding electrode; the specific impulse increases firstly and then decreases with the increase of flare angle; the influence of electrode shape on the performance of PPTs is different at different flare angles. |
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| Keywords: | pulsed plasma thruster electrode configuration flare angle performance |
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