Nonelectrical Tube Explosive Transfer System
Nonelectrical Tube Explosive Transfer System
复制标题
非电气管式炸药输送系统
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
I. Do
中科院分区：
文献类型：
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作者：
Lien C. Yang;I. Do
基于爆炸物装载密度、平均颗粒尺寸和典型几何形状，使用基于准稳态爆炸颗粒传热和分解动力学的方法，对非电管爆炸管线中的内弹道和反应传播标准进行了分析。结果表明，对于给定的炸药装载密度，存在临界或最大平均炸药颗粒尺寸，超过该尺寸，持续传播可能会停止。炸药装填密度通常存在较大变化，因此优选粒径小于20μm的细颗粒。细颗粒尺寸还可以增加对内管壁的粘附力，以减轻粉末迁移问题。使用桑迪亚国家实验室开发的 CTH 流体动力学代码对起爆端头到非起爆端头转移进行了计算机模拟。初步结果表明，来自起爆端头的热气体对于引爆非起爆端头中的烟火更为有效，并且端头之间更大的间隙对于热气体起爆的成功至关重要
Analyses of internal ballistics and criteria for reaction propagation in nonelectrical tube explosive lines were performed based on explosive loading density, average particle size, and typical geometry using an approach based on heat transfer and decomposition kinetics in the explosive particles in quasi steady state. The results indicate the existence of a critical or maximum average explosive particle size for a given explosive loading density beyond which sustained propagation may cease. Large variations usually exist in the explosive loading density, so that fine particle sizes below 20 μm are preferable. Fine particle size also may increase the adhesion to the inner tube wall for mitigation of powder migration problems. Computer simulations of detonating end tip to nondetonating end tip transfer were performed using the CTH hydrodynamic code developed by the Sandia National Laboratories. Preliminary results indicate that the hot gas from the detonating end tip is more effective for initiating pyrotechnics in the nondetonating end tip and that a larger gap between the end tips is essential for the success of hot gas initiation