Experimental and Numerical Studies on Flyer Initiation Device
Experimental and Numerical Studies on Flyer Initiation Device
复制标题
飞行器起爆装置的实验与数值研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Peng Qi
中科院分区：
文献类型：
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作者：
Peng Qi
设计了一种新型炸药驱动的变速飞片起爆装置，对不同密度的PETN进行了飞片起爆试验，利用VISAR观测了飞片的速度历史，利用VLW状态方程计算了不同密度的PETN的JWL状态方程参数，利用有限元流体动力学软件Ansys/Ls-dyna对飞片的速度进行了模拟，实验结果与实验结果吻合较好，验证了用数值方法计算飞片速度的可行性，得到了飞片速度与太安密度的关系，飞片速度在2660 ~ 3150 m·s ~（-1）范围内可调，相应的压力范围为54-86 GPa。
A novel explosive driven flyer initiation device with changeable velocity was designed.Flyer initiation tests with different densities PETN were finished and the history of velocity of flyer was observed by VISAR.Parameters of JWL EOS of PETN with different densities were calculated by VLW EOS.Velocities of flyer was simulated by the finite element hydrocode Ansys/Ls-dyna,which were coincided with results of tests.It testified feasibility of numerical method to calculate velocity of flyer.The relationships between flyer velocity and density of PETN were gained,so that the velocity of flyer could be adjusted from 2660 m.s-1 to 3150 m.s-1 with corresponding pressure range of 54-86 GPa.