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在法国和德国共同实施技术计划(TA50)期间,进行模拟和试验综合研究证明以铁爆炸成形弹丸(EFP)代替钽弹丸的可能性。含有超过100次试验的三方面研究包括实弹爆炸成形弹丸发射、全尺寸和半尺寸机加弹丸模型的试验,以及三种不同流体编码(OURANOS、AUTODYN、OTIHULL)的试验数值模拟。以2100m/s的速度发射长径L/D=4、6和8的全尺寸和半尺寸模型弹丸撞击不同的靶。对于不同的长径比确定了最大穿深和极限侵彻能力。用三种不同的流体编码预报弹坑的深度和直径与试验结果一致性很好。下一步研究靶结构(倾斜、间隔靶等)的影响。在计划中开发了一个L/D=6.5的实际的爆炸成形铁弹丸,模型钽弹丸与等质量的铁爆炸成形弹丸之间的对比说明,在试验和数值模拟中L/D=6的实心铁弹丸将代替L/D=3的钽弹丸。
During the joint implementation of the technical plan (TA50) between France and Germany, a comprehensive study of simulation and testing was conducted to demonstrate the possibility of replacing the tantalum projectile with iron explosive shaped pellets (EFP). Tripartite studies with more than 100 trials included live-bombled projectile shots, full- and half-size shots, and experimental numerical simulations of three different fluid codes (OURANOS, AUTODYN, OTIHULL). Emission of full- and half-size model shots of major diameter L / D = 4, 6, and 8 at 2100 m / s impacts different targets. The maximum penetration depth and ultimate penetration are determined for different aspect ratios. Prediction of crater depth and diameter with three different fluid codes is in good agreement with the experimental results. The next step is to study the effect of the target structure (tilt, spacer target, etc.). In the plan, an actual detonation formed iron projectile with an L / D of 6.5 was developed. The comparison between the model tantalum projectile and an equal mass of iron detonation projectile shows that L / D = 6 in the experimental and numerical simulations Solid iron projectile will replace the L / D = 3 tantalum projectile.