电爆驱动高速飞片冲击下HNS小尺寸装药的起爆与爆轰特性
Initiation and Detonation Characteristics of Small-sized HNS Explosive Charges under the Impact of High-speed Flyers Driven by Electric Explosion
- 兵工学报 2025年46卷第6期 页码：240081
- 作者机构：
1. 北京理工大学 爆炸科学与安全防护全国重点实验室, 北京 100081
2. 四川华川工业股份有限公司, 四川 成都 610105
- 作者简介：
*邮箱:liudy@bit.edu.cn
- 基金信息：国家自然科学基金项目(12302432);中国博士后科学基金项目(2024M754097)
DOI：10.12382/bgxb.2025.0081
中图分类号：收稿：2025-02-06，
网络出版：2025-06-28，
纸质出版：2025-06-10
- 稿件说明：
移动端阅览
杨坤, 刘丹阳, 蹇雨桐, 等. 电爆驱动高速飞片冲击下HNS小尺寸装药的起爆与爆轰特性[J]. 兵工学报, 2025,46(6):240081.
Kun YANG, Danyang LIU, Yutong JIAN, et al. Initiation and Detonation Characteristics of Small-sized HNS Explosive Charges under the Impact of High-speed Flyers Driven by Electric Explosion[J]. Acta Armamentarii, 2025, 46(6): 240081.
杨坤, 刘丹阳, 蹇雨桐, 等. 电爆驱动高速飞片冲击下HNS小尺寸装药的起爆与爆轰特性[J]. 兵工学报, 2025,46(6):240081. DOI： 10.12382/bgxb.2025.0081.
Kun YANG, Danyang LIU, Yutong JIAN, et al. Initiation and Detonation Characteristics of Small-sized HNS Explosive Charges under the Impact of High-speed Flyers Driven by Electric Explosion[J]. Acta Armamentarii, 2025, 46(6): 240081. DOI： 10.12382/bgxb.2025.0081.
摘要
爆炸箔起爆技术具有高安全性和高可靠性
且便于微型化、集成化
契合精密微起爆系统需求。为深入认识爆炸箔起爆系统小尺寸装药引发与爆轰输出特性
搭建电爆炸驱动飞片特性同步观测系统
以及飞片冲击起爆小尺寸装药爆轰的炸药与窗口界面粒子速度测试系统
研究飞片速度、形态特性及其冲击作用下超细六硝基茋(Ultrafine Hexanitrostilbene
HNS-IV)小尺寸装药的起爆与爆轰反应行为。研究结果表明:起爆电压与飞片出膛速度呈正相关
起爆电压900~1500V时
飞片出膛速度为2000~4200m/s;高强度冲击下HNS-IV基炸药爆轰成长距离短
在3455m/s飞片作用下
2.14mm内可成长为稳定爆轰
爆轰波结构分析表明其反应速率快
爆轰反应时间小于27ns
反应区宽度仅0.13mm;3mm直径小尺寸装药条件并未显著影响HNS-IV炸药的主要爆轰反应
但反应后期出现能量快速衰减现象。基于试验标定炸药爆轰反应速率方程
进一步仿真研究了装药尺寸对能量输出的影响
结果显示与增加装药直径相比
增大药柱厚度更能有效提升装药端面的能量输出。
Abstract
Exploding foil initiators (EFIs) represents a promising initiation technology for meeting the high requirements of miniaturized and integrated weapon systems for initiation capability.To conduct an in-depth research on the initiation and detonation output characteristics of small-sized charges in the exploding foil initiator system
a synchronous test system for observing the electrical explosion-driven flyer characteristics of metal bridge foils and a particle velocity measurement system for measuring the velocity of particle at the explosive-window interface for flyer-impact-initiated small-sized explosive detonation are built.The velocity and morphological characteristics of flyers and the initiation and detonation reaction behaviors of small-sized Ultrafine Hexanitrostilbene (HNS-IV) explosive under flyer impact were investigated.The results show that the flyer velocity is positively correlated with the initiation voltage.When the initiation voltage ranges from 900V to 1500V
the flyer velocity exiting the accelerator chamber is measured at 2000m/s to 4200m/s.HNS-IV-based explosives demonstrates a short growth distance of detonation under high-intensity impact.For instance
a stable detonation is achieved within just 2.14mm under the action of a 3455m/s flyer.The further analysis of detonation wave structure indicates that HNS-IV has a fast detonation reaction rate
with a reaction time of less than 27 ns and a reaction zone width of only 0.13mm.Under the condition of a 3mm-diameter charge
the main detonation reaction of HNS-IV explosives remaines largely unaffected
but the energy decays rapidly in the late stage of reaction.The detonation reaction rate model is first calibrated with the experimental results
and then the effect of charge size on the energy output is studied through simulation.The results show that the increase in charge thickness is more effective in enhancing the energy output at the end of charge than the increase in charge diameter.
关键词
Keywords
references
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