摘要
为合理设计非电传爆系统用雷管,研究了不同尺寸对雷管输出性能的影响。基于不同尺寸雷管起爆两路导爆索的试验结果,建立了雷管起爆两路导爆索的计算模型;采用非线性有限元动力学方法,对不同尺寸雷管起爆导爆索过程进行了数值模拟计算,分析了起爆药厚度、传爆药厚度和雷管直径变化对雷管输出性能的影响。结果表明:Φ3.0 mm×3.8 mm雷管不足以起爆Φ1 mm导爆索,Φ3.85 mm×6.50 mm雷管可以可靠起爆Φ1 mm导爆索;针对Φ3.0 mm×3.8 mm雷管,增加起爆药厚度、传爆药厚度和雷管直径均可以可靠起爆Φ1 mm导爆索,其中增大雷管直径还可以保证雷管体积最小,对于提高雷管输出性能的贡献更大。
To design detonator reasonably for non electric detonation system,the effects of different sizes on the output performance of detonator were studied.Based on the test results of two detonating cords initiated by a detonator,a calculation model was established for the initiation of two detonating cords by a detonator.The nonlinear finite element dynamics method was used to numerically simulate the initiation process of detonating cords by the detonator with different sizes.The effects of changes in the thickness of primary explosive,the thickness of booster,and the diameter of detonator on the output performance of detonator were analyzed.The results indicate thatΦ3.0 mm×3.8 mm detonator is not sufficient to initiateΦ1 mm detonating cord,Φ3.85 mm×6.50 mm detonator can be reliable to initiateΦ1mm detonating cord.Based onΦ3.0 mm×3.8 mm detonator,increasing the thickness of primary explosive,the thickness of booster,and the diameter of detonator can all reliably initiateΦ1mm detonating cord.In all of these,increasing the diameter of detonator can also ensure the detonator with the smallest volume,which contributes more to improve the output performance of detonator.
作者
刘群
杨昭
张威
张丽梅
许猛
LIU Qun;YANG Zhao;ZHANG Wei;ZHANG Li-mei;XU Meng(Beijing Institute of Space Mechanics&Electricity,Beijing,100076)
出处
《火工品》
CAS
CSCD
北大核心
2024年第2期8-13,共6页
Initiators & Pyrotechnics
关键词
非电传爆系统
雷管
起爆
数值模拟
Non electric detonation system
Detonator
Initiation
Numerical simulation
