杆式射流对双层间隔靶板侵彻效应影响分析

Analysis of the Penetration Effect of Rod Jet on Double-Layer Spaced Target Plates

摘要: 为研究反潜武器在潜艇浮出水面状态下起爆时，药型罩结构参数对聚能杆式射流成型的影响以及射流成型后对潜艇壳体侵彻能力的影响。本文采用正交试验的方法对药型罩的结构参数进行组合，利用ANSYS/LS-DYNA软件开展了药型罩结构参数对聚能杆式射流影响规律的分析，通过极差分析得到了成型能力较好的结构参数组合，并以该组参数为基础分析了聚能杆式射流对双层间隔靶板的侵彻影响。结果表明：当药型罩锥角α = 90˚、药型罩壁厚δ = 0.30 cm、装药长径比H/D = 1.0时，形成的聚能杆式射流成型效果好，侵彻能力强。在该组参数下形成的聚能杆式射流，射流头部速度V_j、头尾速度差ΔV、射流长度L_j、侵彻孔径D和侵彻深度L的数值均得到显著提升。本文的研究结果可为聚能杆式射流药型罩的结构参数优化以及对双层间隔靶板的侵彻能力分析提供理论依据。

Abstract: To investigate the influence of structural parameters of the shaped charge liner on the formation of the shaped charge jet rod and the penetration capability of the formed jet rod against submarine hulls when an anti-submarine weapon detonates with the submarine in a surfaced condition, this paper adopts an orthogonal experimental design to combine the structural parameters of the shaped charge liner, uses ANSYS/LS-DYNA software to analyze the influence law of the shaped charge liner’s structural parameters on the shaped charge jet rod, obtains a combination of structural parameters with favorable forming performance via range analysis, and analyzes the penetration effect of the shaped charge jet rod against double-spaced target plates based on this parameter combination. The results show that when the cone angle of the shaped charge liner α = 90˚, the wall thickness of the shaped charge liner δ = 0.30 cm, and the charge aspect ratio H/D = 1.0, the formed shaped charge jet rod achieves excellent forming performance and strong penetration capability. For the shaped charge jet rod formed under this set of parameters, the values of jet tip velocity V_j, velocity difference between the jet tip and tail ΔV, jet length L_j, penetration aperture D and penetration depth L are all significantly improved. The research findings of this paper can provide a theoretical basis for the structural parameter optimization of shaped charge liners for shaped charge jet rods and the penetration capability analysis against double-spaced target plates.