摘要
为了探究空气层对RDX爆炸性能的影响,采用水下爆炸实验测出含不同体积空气层的RDX水下爆炸参数,结果表明,空气层对水下爆炸参数的衰减作用显著。在相同不耦合系数K下,R_(1)和R_(2)处的比气泡能大小近似相等,分析认为比气泡能仅与炸药产生的爆生气体有关,与冲击波传播的距离无关。在R_(1)=0.8 m处,不耦合系数K为1~7时,峰值压力显著降低,通过实验结果拟合得到RDX的峰值压力经验公式;当K为7时,对RDX药柱冲量的影响较小,相反地,峰值压力、比冲击波能、比气泡能、水下爆炸总能量分别降低了46.62%、42.98%、37.26%、40.03%。同时,对空气层衰减RDX水下爆炸性能机理进行了分析,总结并提出一种全新的水下冲击波调节方法。
In order to investigate the effect of air layer on the explosive performance of RDX,underwater explosion experiments were used to measure the underwater explosion parameters of RDX containing different volumes of air layer,and the results showed that the attenuation effect of air layer on the underwater explosion parameters was significant.At the same decoupling ratio K,the value of specific bubble energy at R_(1)and R_(2)were approximately equal,and it was determined that the specific bubble energy was only related to the gas produced by explosion,independent of the distance of shock wave propagation.When R_(1)was 0.8 m and K was 1 to 7,the peak pressure was significantly reduced,and the empirical equation for the peak pressure of RDX was obtained by fitting the experimental results;when K was 7,the effect on the impulse of RDX charge was limited.Instead,the peak pressure,specific shock energy,specific bubble energy,and total energy were reduced by 46.62%,42.98%,37.26%,and 40.03%,respectively.At the same time,the mechanism of air layer attenuating RDX underwater explosion parameters was analyzed,and a new method of underwater shock wave regulation was also summarized and proposed.
作者
黄亮亮
王林桂
张西良
马宏昊
张中雷
杨海涛
陈亚建
沈兆武
陈继平
王奕鑫
HUANG Liang-liang;WANG Lin-gui;ZHANG Xi-liang;MA Hong-hao;ZHANG Zhong-lei;YANG Hai-tao;CHEN Ya-jian;SHEN Zhao-wu;CHEN Ji-ping;WANG Yi-xin(CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230026,China;Darch Construction Group Co.,Ltd.,Zhoushan 316021,Zhejiang,China;Ma’anshan Kuangyuan Blasting Engineering Co.,Ltd.,Ma’anshan 243000,Anhui,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,China)
出处
《工程爆破》
CSCD
北大核心
2021年第5期32-38,共7页
Engineering Blasting
基金
国家自然科学基金资助项目(51674229,51874267)。
关键词
水下爆炸
不耦合系数
RDX
冲击波
衰减机理
underwater explosion
decoupling ratio
RDX
shock wave
weakening mechanism
