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弹体高速侵彻半无限钢靶的研究

         

摘要

针对目前超出常规火炮炮口初速范围的弹丸侵彻规律研究匮乏的问题,提出一种弹体高速侵彻半无限钢靶的研究方法。在常规火炮速度范围的基础上,以高速发射平台为运用背景,拓宽了初速范围。利用 Autodyn 软件的Lagrange算法对不同长径比的钨合金弹体在1.0~2.5 km/s内侵彻38CrMoAl半无限钢靶进行数值仿真研究。根据数值仿真结果,对弹丸的侵彻规律进行分析研究。仿真结果表明:侵彻初速增大后,弹丸侵彻深度与相对穿深非线性增长;高速弹丸总侵彻时间较低速时更短,侵彻过程更迅速。%For solving the problem that penetration rules study is absent beyond the muzzle velocity of the conventional artillery, a research method of high-velocity penetrators penetration into semi-infinite steel targets is proposed. Setting in the high speed launch platform, the velocity region is broadened on the basis of muzzle velocity region. The numerical simulation of different L/D ratio tungsten alloy penetrator incident penetrating into a 38CrMoAl semi-infinite steel target is performed using Autodyn code and Lagrange method. Based on the simulation consequence, the rule is analyzed. As a result, penetration depth and relative penetration depth are nonlinear increased with the penetration velocity increased is different clearly than it is in low velocity region. The total time of penetration in high velocity is shorter than it is in low velocity.

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