密闭空间内六硝基六氮杂异伍兹烷基复合炸药能量释放特性  

Energy Release Characteristics of CL-20-based Composite Explosives in Confined Space

作　　者：刘正 聂建新[1] 徐星 朱英中 刘攀 郭学永[1] 闫石[1] 张韬 LIU Zheng;NIE Jianxin;XU Xing;ZHU Yingzhong;LIU Pan;GUO Xueyong;YAN Shi;ZHANG Tao(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Inner Mongolia Test Institute of Aerospace Dynamic Machine,Hohhot 010076,Inner Mongolia,China;Chongqing Hongyu Precision Industry Co.,Ltd.,Chongqing 402760,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]内蒙航天动力机械测试所,内蒙古呼和浩特010076 [3]重庆红宇精密工业集团有限公司,重庆402760

出　　处：《兵工学报》2022年第3期503-512,共10页Acta Armamentarii

基　　金：国家自然科学基金项目(11772058)。

摘　　要：为研究密闭空间内六硝基六氮杂异伍兹烷(CL-20)基复合炸药爆炸能量释放特性,实验测试了药氧比为0.35~1.00炸药样品内爆产生的准静态压力。基于理想气体绝热模型和铝粒子气化燃烧方程,计算分析了不同药氧比样品爆炸的能量释放过程,应用非线性有限元AUTODYN软件模拟了不同药氧比炸药样品密闭空间内爆炸的作用过程。研究结果表明:随着药氧比的增加,复合炸药的准静态压力先升高后降低,在药氧比为0.83时准静态压力达到最大;复合炸药在20 ms内释放的能量随药氧比也呈现先升高后降低的趋势;密闭空间内炸药爆炸产生的准静态压力主要由一定时间内炸药实际释放的能量和能量释放的时间尺度共同决定;准静态压力的计算值与实验结果最大相对偏差为4.7%。研究成果可为先进温压战斗部用高能炸药配方设计与优化提供参考。The quasi-static pressure generated by the implosion of explosive samples with R_(e) of 0.35-1.0 was tested experimentally to study the explosion energy release characteristics of CL-20-based composite explosives in confined spaces.Based on the ideal gas adiabatic model and aluminum particle gasification combustion equation,the explosion energy release processes of explosive samples with different R_(e) were calculated and analyzed.The result shows that the quasi-static pressure of the composite explosive increases first and then decreases with the increase in R_(e),and the quasi-static pressure reaches the maximum with R_(e) of 0.83.The energy released from the composite explosive in 20 ms also shows a trend of increasing first and then decreasing with the increase in R_(e).The quasi-static pressure generated by the explosion of explosives in confined space are mainly determined by the actual energy released by the explosive and the time scale of energy release within a certain period of time.AUTODYN is used to simulate the action process of explosion of explosive samples with different R_(e) in confined space,and the maximum relative deviation of the calculated value of quasi-static pressure from the experimental results is 4.7%.

关 键 词：密闭空间 六硝基六氮杂异伍兹烷基复合炸药 准静态压力 能量释放 

分 类 号：TQ564[化学工程—炸药化工]