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串联战斗部前级K装药结构的优化设计

DOI: 10.11858/gywlxb.2014.01.012, PP. 73-78

Keywords: K装药,串联战斗部,聚能杆式射流,正交优化,数值模拟

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Abstract:

针对串联战斗部前级装药大开孔兼顾侵深的要求，应用LS-DYNA有限元软件，结合正交优化设计方法，仿真研究了K装药的药型罩及隔板结构参数对高速聚能杆式射流成型的影响规律，找出了形成较高头部速度的聚能杆式射流的药型罩外壁曲率半径和偏心距（分别为90～110mm和35～40mm）。计算得到了各结构参数（偏心距、罩外壁曲率半径、壁厚、隔板直径、张角、锥角）对聚能杆式侵彻体成型指标（头部速度和头尾速度差）影响的主次顺序，获得了K装药结构参数的最佳组合。进行了X光成像及侵彻钢靶实验，侵深达到装药口径的3.73倍，侵彻孔径为装药口径的0.36倍，侵彻孔径较均匀。数值模拟结果与实验结果吻合较好，研究结果为串联聚能装药技术的进一步研究提供了参考依据。

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