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Numerical Simulation of Effect of Ignition Ways on Shaped Charge Jet
Author(s): 
Pages: 415-419
Year: Issue:  4
Journal: CHINESE JOURNAL OF ENERGETIC MATERIALS

Keyword:  弹药爆轰理论与工程起爆方式射流数值模拟聚能装药;
Abstract: 应用ANSYS/LS-DYNA3D有限元分析软件,采用ALE算法对在同种装药结构条件下的药型罩顶部单点起爆、顶面双环线起爆、装药面轴向外壁中心单环线起爆、三环线起爆后形成的聚能射流分别进行了数值模拟.计算结果表明,起爆方式对射流性能有着重要的影响,不同起爆方式在装药中形成不同的爆轰波形,药型罩顶部双环线起爆比单点起爆后形成的射流头部速度提高11.6%; 装药面轴向外壁线起爆比药型罩顶部任何方式起爆后形成的聚能射流头部速度都低,装药面轴向外壁三环线起爆比药型罩顶部双环线起爆后形成的射流头部速度降低18%; 同时进行了验证实验,仿真结果与实验结果吻合.
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