| 自由振荡激光引爆机理的初步研究 |
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| 引用本文： | 黄忆龙,赵锦桥. 自由振荡激光引爆机理的初步研究[J]. 工程爆破, 2000, 6(1): 11-14,31 |
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| 作者姓名： | 黄忆龙 赵锦桥 |
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| 作者单位： | 1. 中国矿业大学北京校区,北京,100083
2. 山东科技大学,山东泰安,271019 |
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| 摘 要： | 自由振荡激光广泛运用于科研与生产 ,研究自由振荡激光引爆机理是相当有意义的。炸药体在激光的照射下 ,由于温度场发生骤变 ,在炸药体未发生相变前 ,炸药表面将出现一热应力场。本文用一维激光热熔条件计算了与时间效应有关及无关的热应力值 ,从理论上证明自由振荡激光引爆机理是热起爆 ;按照热起爆机理给出了激光起爆方程 ,用热起爆机理中的瞬时加热热点理论推导出激光引爆炸药的延滞期公式
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| 关 键 词： | 自由振荡激光 激光引爆 热应力 延滞期 |
PRELIMINARY STUDY ON FREE OSCILLATION LASER IGNITION OF EXPLOSIVES |
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| HUANG Yi-long,ZHAO Jin-qiao. PRELIMINARY STUDY ON FREE OSCILLATION LASER IGNITION OF EXPLOSIVES[J]. Engineering Blasting, 2000, 6(1): 11-14,31 |
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| Authors: | HUANG Yi-long ZHAO Jin-qiao |
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| Affiliation: | HUANG Yi long 1,ZHAO Jin qiao 2 |
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| Abstract: | Free oscillation laser has been widely applied in scientific research and production, so it is very neccesary for us to study free oscillation laser ignition of explosives. The temperature field in the explosive will immediately change, when a laser beam irradiats a explosive. A thermal stress field on explosive surface will occur before the state of the explosive changes. Through the calculation of thermal stress values,it has been affirmed that free oscillation laser ignition of the explosive is heating ignition. The equation of ignition time is deduced by the theory of instaneous hot spot. |
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| Keywords: | Free oscillation laser Laser ignition Thermal stress Ignition time |
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