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高速撞击梯度电势靶板产生等离子体诱发的放电

唐恩凌 刘美 韩雅菲 王睿智 贺丽萍 刘淑华

唐恩凌, 刘美, 韩雅菲, 等 . 高速撞击梯度电势靶板产生等离子体诱发的放电[J]. 北京航空航天大学学报, 2018, 44(3): 420-428. doi: 10.13700/j.bh.1001-5965.2017.0203
引用本文: 唐恩凌, 刘美, 韩雅菲, 等 . 高速撞击梯度电势靶板产生等离子体诱发的放电[J]. 北京航空航天大学学报, 2018, 44(3): 420-428. doi: 10.13700/j.bh.1001-5965.2017.0203
TANG Enling, LIU Mei, HAN Yafei, et al. Discharge induced by plasma during high-velocity impact on target plate with gradient potential[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(3): 420-428. doi: 10.13700/j.bh.1001-5965.2017.0203(in Chinese)
Citation: TANG Enling, LIU Mei, HAN Yafei, et al. Discharge induced by plasma during high-velocity impact on target plate with gradient potential[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(3): 420-428. doi: 10.13700/j.bh.1001-5965.2017.0203(in Chinese)

高速撞击梯度电势靶板产生等离子体诱发的放电

doi: 10.13700/j.bh.1001-5965.2017.0203
基金项目: 

国家自然科学基金 11472178

国家自然科学基金 10972145

国家自然科学基金 11272218

辽宁省“百千万人才工程”培养经费资助项目 2012921044

辽宁省高校优秀人才支持计划 LR2013008

爆炸科学与技术国家重点实验室开放基金(北京理工大学) 

详细信息
    作者简介:

    唐恩凌  男,博士,教授,博士生导师。主要研究方向:超高速加载及测试技术、飞秒脉冲激光加载及测试技术、凝聚态物理、原子分子物理、空间环境及临近空间高超声速磁流体力学等

    通讯作者:

    唐恩凌. E-mail: tangenling@126.com

  • 中图分类号: O383;O531

Discharge induced by plasma during high-velocity impact on target plate with gradient potential

Funds: 

National Natural Science Foundation of China 11472178

National Natural Science Foundation of China 10972145

National Natural Science Foundation of China 11272218

Liaoning Province Talents Engineering Projects 2012921044

Program for Liaoning Excellent Talents in University LR2013008

Open Foundation of the State Key Laboratory of Explosive Science and Technology (Beijing Institute of Technology) 

More Information
  • 摘要:

    针对在轨运行航天器在空间等离子体环境和空间带电粒子活动下诱发航天器表面梯度电势存在的客观现实,航天器在空间碎片的撞击下会诱发表面带电或深层电介质带电的航天器放电。为了在实验室模拟航天器表面存在电势差的真实情况,采用对航天器外表面分割的方法,在分割的表面间预留不同间距且在2靶板间加装电阻的方法创造具有梯度电势的高电势2A12铝板作为靶板。利用自行构建的梯度电势靶板的充放电测试系统、超高速相机采集系统和二级轻气炮加载系统,开展高速撞击梯度电势2A12铝靶的实验室实验。实验中,弹丸以入射角度为60°(弹道与靶板平面的夹角)、撞击速度约为3 km/s的条件撞击间距分别为2、3、4和5 mm的2A12铝高电势靶板,利用电流探针和电压探针采集放电电流和放电电压。实验结果表明:放电产生的等离子体形成了高电势与低电势靶板间的放电通道,且在梯度电势靶板间距分别为2、3 mm时诱发了一次放电,放电电流随高低电势靶板间间距的增加而减小;在梯度电势靶板间距分别为4、5 mm时诱发了二次放电,放电电流随高低电势靶板间间距的增加变化不明显。

     

  • 图 1  实验系统

    Figure 1.  Experimental system

    图 2  供电及放电测试系统

    Figure 2.  Power supply and discharge measurement system

    图 3  No.1实验中的放电电压和放电电流

    Figure 3.  Discharge voltage and discharge current in experiment No.1

    图 4  No.2实验中的放电电压和放电电流

    Figure 4.  Discharge voltage and discharge current in experiment No.2

    图 5  No.3实验中的放电电压和放电电流

    Figure 5.  Discharge voltage and discharge current in experiment No.3

    图 6  No.4实验中的放电电压和放电电流

    Figure 6.  Discharge voltage and discharge current in experiment No.4

    图 7  高低电势靶板间建立的电场示意图

    Figure 7.  Schematic diagram of electric field between high-potential and low-potential target

    图 8  高低电势靶板间建立的电磁场示意图

    Figure 8.  Schematic diagram of electromagnetic field between high-potential and low-potential target

    图 9  放电电流随高低电势靶板间距的变化关系

    Figure 9.  Variation of discharge current with distance between high-potential and low-potential target

    图 10  典型实验条件下超高速相机采集的不同时刻的放电照片

    Figure 10.  Discharge photos at different moments acquired by ultra-high speed camera under typical experimental conditions

    图 11  No.2实验放电在不同时刻的视频截图

    Figure 11.  Discharge video screenshot at different moments in experiment No.2

    表  1  实验基本参数

    Table  1.   Basic experimental parameters

    实验编号 撞击速度/(km·s-1) 电势靶板间距/mm 电压探针编号 靶板的稳恒电压/V 电流探针编号 电路中的稳恒电流/A 靶室内真空压力/Pa
    No.1 3.08 2 VP1 298.0 CP1 3.64 40
    CP2 3.01
    CP3 2.98
    No.2 3.05 3 VP1 297.5 CP1 3.57 40
    CP2 2.94
    CP3 3.02
    No.3 3.05 4 VP1 298.2 CP1 3.46 39
    CP2 2.94
    CP3 3.10
    No.4 2.98 5 VP1 297.4 CP1 3.58 38
    CP2 3.02
    CP3 2.91
    下载: 导出CSV
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出版历程
  • 收稿日期:  2017-04-06
  • 录用日期:  2017-06-30
  • 刊出日期:  2018-03-20

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