爆破器材2025，Vol.54Issue(1)：7-13,7.DOI:10.3969/j.issn.1001-8352.2025.01.002
对称双线性起爆下爆轰波的轴向传播特性
Characteristics of Axial Propagation of Detonation Waves in Symmetric Bilinear Detonation
摘要
Abstract
The collision of detonation waves can generate energy cumulative effect in the charge,thereby improving the detonation effect.In order to analyze the collision and energy cumulative characteristics of detonation waves,firstly,based on the theory of detonation wave collision,the axial propagation velocity of detonation waves in strip charges under symmetric bilinear detonation was derived.Secondly,the axial propagation characteristics of detonation waves were ana-lyzed using ANSYS/LS-DYNA finite element software.Finally,the detonation velocity at the center axis of the charge was measured using a continuous pressure-guided probe,and the detonation pressure at which the detonation wave reached sta-bility in the axial direction was analyzed.The results show that,after the axial propagation of the detonation wave reaches stability,the propagation velocity of Mach wave approaches the detonation velocity of the detonating cord,and the Mach stem occupies the entire diameter of the charge and propagates stably in the form of an approximate plane wave.Detonation parameters obtained from numerical calculations and experiments are similar to the set values of detonating cords.The deto-nation velocity is about 60% higher than the set detonation velocity of ammonium oil explosives,and the detonation pres-sure is about 160% higher.Detonation parameters obtained from theoretical analysis,numerical calculations,and experi-ments are consistent with each other.In symmetric bilinear detonation technology,detonation performances of explosives is significantly improved,and the energy cumulative effect of detonation waves can be achieved.关键词
对称双线性起爆/连续压导探针/聚能效应/爆速/爆压Key words
symmetric bilinear detonation/continuous pressure-guided probe/energy cumulative effect/detonation velocity/detonation pressure分类
武器工业引用本文复制引用
李昱锦,缪玉松,李斌,黄飞飞,葛帅,杨涛,吴佳怡..对称双线性起爆下爆轰波的轴向传播特性[J].爆破器材,2025,54(1):7-13,7.基金项目
国家自然科学基金(11672067) （11672067）
山东省自然科学基金(ZR2019BA023) （ZR2019BA023）
