| 半正方形罩线型切割器的数值模拟研究 |
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| 引用本文： | 姚志华,王志军,付璐,徐昊.半正方形罩线型切割器的数值模拟研究[J].爆破器材,2011,40(2):11-13. |
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| 作者姓名： | 姚志华 王志军 付璐 徐昊 |
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| 作者单位： | 中北大学机电工程学院,山西太原,030051;空军场务技术试验中心,山东济宁,272000;中北大学机电工程学院,山西太原,030051;空军场务技术试验中心,山东济宁,272000 |
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| 摘 要： | 半正方形药型罩也可以看作两个楔角90°楔形药型罩相对排列在一起而演化出的一种线型聚能装药结构。应用LS-DYNA非线性有限元软件完成了爆炸载荷下半正方形罩线性切割器形成射流过程的数值模拟。结果表明,半正方形罩线性切割器能形成一股片状扇形聚能射流;半正方形罩线型切割器形成射流存在一个初始射流二次汇聚的过程,二次汇聚形成的射流速度比一次汇聚射流速度提高了33%以上;半正方形罩线型切割器形成射流速度要明显高于普通线型切割器;随药型罩厚度的增加,半正方形罩线型切割器形成射流速度降低。
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| 关 键 词： | 线型聚能装药 半正方形罩 射流 数值模拟 |
Numerical Simulation of Linear Cutter with Semi-square Liner |
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| YAO Zhihua,WANG Zhijun,FU Lu,XU Hao.Numerical Simulation of Linear Cutter with Semi-square Liner[J].Explosive Materials,2011,40(2):11-13. |
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| Authors: | YAO Zhihua WANG Zhijun FU Lu XU Hao |
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| Affiliation: | YAO Zhihua①②,WANG Zhijun①,FU Lu①,XU Hao②①School of Mechatronic Engineering,North University of China(Shanxi Taiyuan,030051)②Airfeild Technology Test Center of Airforce(Shandong Ji’ning,272000) |
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| Abstract: | A semi-square liner shaped charge cutter is a shape charge by changing charge structure based on two cuneiform liners.The nonlinear finite element software LS-DYNA was applied to complete the numerical simulation on the semi-square liner shaped charge cutter under explosion load.The result shows that the semi-square liner shaped charge cutter can form jet.The jet so-formed contains an initial process of gathering the second jet,of which the velocity has increased by 33% or more than the first jet velocity.T... |
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| Keywords: | liner shaped charge cutter semi-square liner jet numerical simulation |
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