| 超高速碰撞天然白云石板产生闪光的辐射温度 |
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| 引用本文： | 相升海,王迪,唐恩凌,施晓涵,张庆明,王猛,夏瑾.超高速碰撞天然白云石板产生闪光的辐射温度[J].强激光与粒子束,2015,27(1):014003. |
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| 作者姓名： | 相升海 王迪 唐恩凌 施晓涵 张庆明 王猛 夏瑾 |
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| 作者单位： | 1.沈阳理工大学 装备工程学院, 沈阳 1 1 01 59; |
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| 基金项目： | 国家自然科学基金项目(11272218, 10972145, 11472178); 国家自然科学基金重点项目(11032003); 辽宁省高校优秀人才支持计划项目(LR2013008) |
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| 摘 要： | 为研究超高速碰撞天然白云石板产生闪光温度衰减阶段的演化特征,利用二级轻气炮和瞬态光纤高温计,进行入射角度(与靶板平面的夹角)为45°、碰撞速度分别为1.9,4.2km/s两种条件下的超高速碰撞实验。根据冲击波理论,推导出超高速碰撞天然白云石板产生闪光温度衰减阶段的半理论半经验公式。分析结果表明,弹丸撞击靶板的速度越高,闪光辐射温度衰减的持续时间越长。闪光辐射温度衰减阶段的理论推导与实验数据一致性较好,闪光辐射温度衰减阶段的理论推导可对类似碰撞问题闪光辐射温度衰减阶段进行预估。
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| 关 键 词： | 超高速碰撞 白云石板 碰撞闪光 闪光温度 理论推导 |
| 收稿时间： | 2014/6/9 |
Radiated temperature of light flash produced by hypervelocity impact on natural dolomite plate |
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| Institution: | 1.School of Equipment Engineering,Shenyang Ligong University,Shenyang 110159,China;2.State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China |
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| Abstract: | To investigate the evolutionary characteristics of decay phase of the flash temperature produced by hypervelocity impact on dolomite plate, an experimental measurement system platform was established with two-stage light-gas gun loading system and optical pyrometer measurement system, and the hypervelocity impact experiments were executed in two different velocities (as 1.9, 4.2 km/s)at the same impact angle 45. Theoretical and empirical formula was deduced by shock wave theory. The analysis of the results show that the larger the impact velocity is, the longer the decay time will be and that the theoretical derivation formula is better consistent with the experimental data, and it can be used for estimating such collisions radiation decay phase of the flash temperature. |
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| Keywords: | hypervelocity impact dolomite plate impact light flash flash temperature theoretical derivation |
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