不同间距两点空中爆炸威力场特性数值模拟研究  

Numerical Research on the Power Field of Two-point Array Explosion with Different Spatial Intervals in Air

作　　者：郑监 毛致远 张代鑫 胡宏伟[1] 宋浦[1] ZHENG Jian;MAO Zhiyuan;ZHANG Daixin;HU Hongwei;SONG Pu(Xi'an Modern Chemistry Research Institute,Xi'an 710065,Shaanxi,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《兵工学报》2023年第12期3590-3600,共11页Acta Armamentarii

基　　金：国家自然科学基金项目(12172380)。

摘　　要：为探索不同间距两个相同质量炸药在无限空域中同时起爆形成的爆炸威力场特性,借助有限元仿真软件,通过建立不同间距的两点炸药在自由场空中爆炸的数值模型对两点阵列爆炸进行数值研究,获取计算域各空间点的冲击波参数,分别绘制了基于超压和冲量准则的等毁伤区域轮廓线,并对等值面的几何特性随间距的变化规律进行研究。研究结果表明:压力增强效应和多峰效应是爆炸威力场重构的主要原因;两点爆炸威力场的等毁伤区域随分离距离增大呈现3种典型形状;与单点爆炸相比,两点爆炸威力场的体积和特定方向的覆盖范围仅在部分分离距离范围内有增益,增益大小与分离距离和准则阈值有关;作为阵列爆炸中最为基础的作用形式,两点爆炸的相关研究结论可以为多点阵列爆炸威力场特性研究和多弹协同作战模式设计提供参考。In order to explore the characteristics of explosive power field formed by simultaneously detonated two explosives with different spatial intervals in infinite air space,a numerical model of two-point explosives with different spacing distances in free field air explosion is established to numerically study the two-point array explosion.The shock wave parameters of each space point in the calculation domain are obtained,and the contours of equal damage region based on overpressure and impulse criteria are drawn,respectively.The geometric characteristics of iso-surface with the change of space distance are studied.Results show that the pressure enhancement effect and multi-peak effect are the main reasons for the reconstruction of explosive power field.With the increase of the separation distance,the equal damage region of two-point explosion field presents three typical shapes.Compared with single point explosion,the volume of two-point explosion power field and the coverage area in specific direction only have gains in the range of partial separation distance.The relevant research conclusions related to the separation distance and criterion threshold can provide a reference for the study of multi-point array explosion power field characteristics and the design of multi-bomb cooperative combat mode.As the most basic mode of array explosion,these results can provide a reference for the study of multi-point array explosion power field characteristics and the design of multi-bomb cooperative combat mode.

关 键 词：冲击波 相互作用 阵列爆炸 威力场 

分 类 号：O382[理学—流体力学]