[1]李昱锦①,缪玉松①,李斌②,等.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(01):7-13.[doi:10.3969/j.issn.1001-8352.2025.01.002]
　LI Yujin,MIAO Yusong,LI Bin,et al.Characteristics of Axial Propagation of Detonation Waves in Symmetric Bilinear Detonation[J].EXPLOSIVE MATERIALS,2025,54(01):7-13.[doi:10.3969/j.issn.1001-8352.2025.01.002]
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对称双线性起爆下爆轰波的轴向传播特性()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
54
期数:
2025年01
页码:
7-13
栏目:
基础理论
出版日期:
2025-01-09

文章信息/Info

Title:
Characteristics of Axial Propagation of Detonation Waves in Symmetric Bilinear Detonation
文章编号:
5961
作者:
李昱锦①; 缪玉松①; 李斌②; 黄飞飞①; 葛帅③; 杨涛①; 吴佳怡①
①青岛理工大学理学院（山东青岛，266525）
②中铁二十二局集团有限公司（北京，100043）
③青岛海德工程建设集团股份有限公司（山东青岛，266100）
Author(s):
LI Yujin①;  MIAO Yusong①;  LI Bin②;  HUANG Feifei①;  GE Shuai③;  YANG Tao①;  WU Jiayi①
① School of Science, Qingdao University of Technology (Shandong Qingdao, 266525)
② China Railway 22nd Bureau Group Co., Ltd. (Beijing, 100043)
③ Qingdao Haide Engineering Group Co., Ltd. (Shandong Qingdao, 266100)
关键词:
对称双线性起爆; 连续压导探针; 聚能效应; 爆速; 爆压
Keywords:
symmetric bilinear detonation;  continuous pressure-guided probe;  energy cumulative effect;  detonation velocity;  detonation pressure
分类号:
TJ55; TD235
DOI:
10.3969/j.issn.1001-8352.2025.01.002
文献标志码:
A
摘要:
利用爆轰波的碰撞可在药包中产生聚能效应，从而改善爆轰效果。为分析爆轰波碰撞聚能特性，首先，基于爆轰波碰撞理论，推导了对称双线性起爆下条形药包中爆轰波的轴向传播速度；其次，利用LS-DYNA有限元软件分析了爆轰波的轴向传播特性；最后，利用连续压导探针对药包中心轴线处的爆速进行测定，并对爆轰波在轴向达到稳定时的爆压进行分析。结果表明：爆轰波在轴向的传播达到稳定后，马赫波传播速度接近导爆索的爆速，马赫杆占据整个药包直径,并以近似平面波的形式稳定传播。数值计算与现场实验得到的爆轰参数相近，均与导爆索的设定值相当，且爆速比铵油炸药的设定爆速高出60%左右，爆压高出160%左右。理论分析、数值计算及现场实验得到的爆轰参数互相吻合。研究结果表明，对称双线性起爆技术能显著提高炸药的爆轰性能，实现爆轰波的聚能效应。
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 analyzed 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 stability 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 detonation velocity is about 60% higher than the set detonation velocity of ammonium oil explosives, and the detonation pressure is about 160% higher. Detonation parameters obtained from theoretical analysis, numerical calculations, and experiments 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.

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备注/Memo

备注/Memo:
收稿日期：2024-06-30
基金项目：国家自然科学基金（11672067）；山东省自然科学基金（ZR2019BA023）
第一作者：李昱锦（1998—），男，硕士研究生，主要从事爆炸力学的研究。E-mail: 15340697963@163.com
通信作者：缪玉松（1986—），男，副教授，硕导，主要从事爆炸力学、工程爆破的研究。E-mail: miaoyusong@qut.edu.cn
更新日期/Last Update: 2025-01-10