为了研究高能固体推进剂的冲击起爆行为，对推进剂进行了冲击加载下的拉氏分析实验。采用锰铜压力计测量了推进剂中不同位置的压力历程，分析了推进剂爆轰压力、爆速及爆轰成长距离等爆轰特性。采用拉氏分析实验计算模型、弹塑性流体动力学材料模型及点火增长模型反应速率方程对推进剂的冲击起爆过程进行了数值模拟。根据拉氏分析实验结果，标定了推进剂点火增长模型反应速率方程参数。
Abstract
In order to investigate the characters of high energy solid propellants initiated by shock waves, the Lagrange analytical experiment equipment was designed. The pressure histories at the dif?ferent Lagrange places in the propellants were measured by a set of manganin gauges. The detonation pressure, the detonation velocity and the initiation distances of the propellants were analyzed. The shock initiation process of the propellant was numerically simulated by the calculated model of La?grange analytical experiments, the material models of elastopiastic fluid dynamics and the reactive rate equation of ignition growth model. According to the experimental results, the parameters of the reac?tive rate equation of ignition growth model for the propellants were calibrated.
关键词
爆炸力学 /
推进剂 /
爆轰 /
拉氏分析实验 /
反应速率方程 /
数值模拟
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Key words
explosion mechanics /
propellants /
detonation /
Lagrange analytical experiment /
equation of reaction state /
numerical simulation
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参考文献
[I] James L. Propellants and explosives in ballistic missiles [ R].USA： DE-93018914, 1993.
[2] 贾祥瑞，李冬香，孙锦山，等.高能固体推进剂燃烧转爆轰数 值模拟[J].兵工学报，1997，18(1): 46-51.
JIA Xiang-rui, LI Dong-xiang, SUN Jin-shan, et al. An analysis of the deflagration-to-detonation transition (DDT) in NEPE pro-pellants [j]. Acta Armamentarii，1997, 18(1): 46 - 51. (in Chi?nese)
[3] 李广武.硝酸酯增塑高能推进剂爆炸性能研究[J].固体火箭 技术，2000，23(3)： 44-48.
LI Guang-wu. Study on the explosion properties of nitrate plasti?cized high energy propellant[ J ]. Journal of Solid Rocket Technol?ogy, 2000，23(3) ； 44 — 48. (in Chinese)
[4] 贾祥瑞，池军智，段卓平，等.高能推进剂燃烧转爆轰实验研 究[J].兵工学报，1996，17(4):358-361.
JIA Xiang-rui,CHI jun-zhi，DUAN Zhuo-ping, et al. Anexpen- mental study of deflagration-to-detonation transition in high-ener?gy propellant[J]. Acta Armamentarii, 1996, 17(4) ： 358 — 361. (in Chinese)
[5] 黄风雷.固体推进剂冲击起爆及燃烧转爆轰研究[J].北京理 工大学学报，2003, 23(Suppl)： 9-12.
HUANG Feng-lei. Shock initation and DDT of solid propellant [J]. Transactions of Beijing Institute of Technology, 2003，23 (Suppl) ： 9 — 12. (in Chinese)
[6] 孙承纬，卫玉章，周之奎.应用爆轰物理[M].北京：国防エ 业出版社，2000，12.
SUN Cheng-wei, WEI Yu-zhang, ZHOU Zhi-kui. Applied deto?nation physics[M]. Beijing： National Defense Industry Press, 2000，12. (in Chinese)
[7] Bergues D，Baudin G, Trumel H. A shock-to-detonation transi?tion model for high-energy rocket propellant applied to predict jet initiation threshold[C] // Proceedings of International Detonation Symposium(10th)，Boston, 1993 ： 122 - 129.
[8] Livermore Software Technology Corporation. LS-DYNA keyword user’s manual[ M]. 1990.
[9] 张冠人，陈大年.凝聚炸药起爆动力学[M].北京：国防エ业 出版社，1991.
ZHANG Guan-ren,Chen Da-nian. Agglomerate explosive initia?tion physics [ M ]. Beijing： National Defense Industry Press, 1991. (in Chinese)
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