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应用ANSYS/LS-DYNA软件对不同结构线形聚能装药所形成的聚能侵彻体及切割钢靶过程进行了数值模拟。基于数值模拟设计了不同结构的线形聚能切割器,进行了切割器切割钢靶的验证试验。结果表明,在水介质中,随炸高的增加侵彻体头部速度衰减加快,切割能力下降;侵彻体切割深度沿装药长度方向呈增长趋势,随装药长度的增加将逐步达到稳定状态。
ANSYS / LS-DYNA software was used to simulate the process of energy penetration and cutting of steel target formed by linear shaped charge assembly with different structures. Based on the numerical simulation, the linear shaped energy cutter with different structures was designed and the cutting test of steel cutting target was carried out. The results showed that in the aqueous medium, the velocity of penetration decreased rapidly with the increase of frying height, and the cutting ability decreased. The depth of penetration of cutting fluid increased along the length of charge, and gradually stabilized with the increase of charge length status.