激光对炸药体加热的研究STUDY ON THE LASER HEATING OF EXPLOSIVES
黄忆龙
Huang Yilong (Beijing District;
摘要(Abstract)：
随着激光技术的发展，激光引爆成为炸药起爆的新方式。激光的能量呈高斯分布，激光的能流密度在不同的照射深度呈指数形式衰减。本文通过理论推导获得了激光能量在炸药体内的分布曲面方程，实验获得的爆坑形状验证了这一结果；爆坑的出现进一步说明热点成长为爆轰是分阶段进行的。炸药的颜色对爆坑形状参数的影响在一定程度上证明自由振荡式激光对炸药的引爆属于热起爆。通过对热穿透方程的分析可知炸药的激光引爆存在一个最佳能流密度，并用实验进行了验证。
With the development of laser technology,laser ignition has become a new kind of priming method.Laser energy distributinon is Guassian distribution,and laser energy flux varies with depth of penetration in exponential decay cruve.In this paper,laser energy distribution equation in explosive is gained by theoretical deduction,and it also proves from the blasting pit form,which was got by experiments.Ther appearance of blasting pit further shows that it goes through several stages for hot spot to develop into detonation.The parameters of blasting pit varies with the color of explosive,and it proves that free oscillating laser igniting explosive is thermal ignition.We can find that the ignition of explosive has a optical laser energy flux by analyzing heat penetration equation,and it is also proved by experiments.
关键词(KeyWords)：
激光,能量分布,爆坑,能流密度
Laser\ \ Energy distribution\ \ Blasting pit\ \ Energy flux
基金项目(Foundation):
作者(Authors):
黄忆龙
Huang Yilong (Beijing District;