Spatial Evolutionary Rules of Light Flash Radiation Generated by Hypervelocity Impact on 2A12 Aluminum Plate

TANG En-ling; LI Zhen-bo; HAN Ya-fei; WANG Rui-zhi; HE Li-ping; LIU Shu-hua; WANG Meng; XIA

doi:10.3788/fgxb20173807.0944

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Spatial Evolutionary Rules of Light Flash Radiation Generated by Hypervelocity Impact on 2A12 Aluminum Plate

更新时间：2020-08-12

- Spatial Evolutionary Rules of Light Flash Radiation Generated by Hypervelocity Impact on 2A12 Aluminum Plate
- Chinese Journal of Luminescence Vol. 38, Issue 7, Pages: 944-952(2017)
- 作者机构：
  
  沈阳理工大学装备工程学院, 辽宁沈阳 110159
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China (11272218,11472178,1097214
- DOI：10.3788/fgxb20173807.0944
  CLC： O383;O531
- Received：07 March 2017，
  
  Revised：17 April 2017，
  
  Published：05 July 2017
- 稿件说明：
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唐恩凌, 李振波, 韩雅菲等. 超高速碰撞2A12铝板产生闪光辐射的空间演化规律[J]. 发光学报, 2017,38(7): 944-952

TANG En-ling, LI Zhen-bo, HAN Ya-fei etc. Spatial Evolutionary Rules of Light Flash Radiation Generated by Hypervelocity Impact on 2A12 Aluminum Plate[J]. Chinese Journal of Luminescence, 2017,38(7): 944-952
唐恩凌, 李振波, 韩雅菲等. 超高速碰撞2A12铝板产生闪光辐射的空间演化规律[J]. 发光学报, 2017,38(7): 944-952 DOI： 10.3788/fgxb20173807.0944.

TANG En-ling, LI Zhen-bo, HAN Ya-fei etc. Spatial Evolutionary Rules of Light Flash Radiation Generated by Hypervelocity Impact on 2A12 Aluminum Plate[J]. Chinese Journal of Luminescence, 2017,38(7): 944-952 DOI： 10.3788/fgxb20173807.0944.

摘要

为了描述超高速碰撞2A12铝板产生闪光辐射的空间演化规律，利用瞬态光纤高温计测量系统并结合二级轻气炮加载系统，开展了弹丸以30的入射角度和不同碰撞速度条件下的超高速撞击实验。基于闪光辐射强度和辐射温度的实验数据处理得到了超高速碰撞2A12铝板在撞击点附近产生的最大闪光辐射强度和最大闪光辐射温度，基于大量实验，建立了撞击点附近最大闪光辐射的空间演化模型。并结合Origin软件对实验所得数据的拟合，得到了最大闪光辐射强度和辐射温度随探测点到着靶点间距离变化的拟合函数关系式。实验结果还表明：在相近碰撞速度、相同碰撞角度条件下，在同一椭球面上不同探测点位置处的最大闪光辐射强度和最大闪光温度差别不大，验证了撞击产生的闪光辐射以近似椭球的形状向外膨胀，随着等离子体云的向外膨胀，离碰撞点越远产生的最大闪光辐射强度和最大闪光辐射温度均越小；在相同碰撞角度、不同碰撞速度条件下，在同一椭球面上不同探测点位置处的最大闪光辐射强度和最大闪光温度均随碰撞速度的增加而增大。该研究在导弹拦截、天体物理及深空探测领域具有重要的应用价值。

Abstract

In order to describe the spatial evolution of the light flash radiation produced by hypervelocity impact on 2A12 aluminum plate

the hypervelocity impact experiments were performed by using instantaneous optical pyrometer measurement system and two-stage light gas gun loading system at the conditions of the projectile incidence angle of 30 and the different impact velocities. The maximum flash radiant intensity and the maximum flash radiant temperature were obtained based on the experimental data treatments from flash radiant intensity and radiant temperature created by hypervelocity impact on 2A12 aluminum plate. The maximum flash radiant spatial evolutionary model near the impact point was established from plenty of experimental data. By fitting the experimental data with Origin software

the fitting function relations were obtained about the maximum flash radiant intensity and the radiant temperature with the distance from the detection point to the impact points. The experimental results also shown that the maximum flash radiant intensity and radiant temperature had few differences at the same surface of the ellipsoid positions

when the impact velocity and the impact angle were closen to the same conditions. All these verified that the light flash radiation expanded approximately the ellipsoid shape outward

and maximum flash radiant intensity and radiant temperature smaller from the collision point more far with the plasma cloud expansion; the maximum flash radiant intensity and radiant temperature will increase with increasing of the impact velocities at the same surface of the ellipsoid positions of the different detection points. The research has an important applied value in the field of missile interception

astrophysics and deep space exploration.

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references

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