Study on the Output Performance of Different Size of Detonators in Non Electric Detonation System
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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：Φ3.0mm×3.8mm雷管不足以起爆Φ1mm导爆索，Φ3.85mm×6.50mm雷管可以可靠起爆Φ1mm导爆索；针对Φ3.0mm×3.8mm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Φ1mm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。
Abstract: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 that Φ3.0mm×3.8mm detonator is not sufficient to initiate Φ1mm detonating cord, Φ 3.85mm× 6.50mm detonator can be reliable to initiate Φ1mm detonating cord. Based on Φ3.0mm×3.8mm detonator, increasing the thickness of primary explosive, the thickness of booster , and the diameter of detonator can all reliably initiate Φ1mm 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.
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