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基于空穴膨胀理论,建立了截锥形动能弹低速侵彻靶板过载计算模型,获得了着速、弹头锥度及靶板材料强度等因素对过载的影响特性。计算结果表明,在截锥形动能弹低速侵彻条件下,着速对侵彻过载影响显著,但对过载作用时间影响不大;弹头锥度和靶板材料强度对侵彻过载及过载作用时间有重要影响,侵彻过载和作用时间随弹头锥度及靶板材料强度减小而降低。最后,通过实验验证了计算结果的正确性。
Based on the cavity expansion theory, an over-loading model of truncated cone-shaped kinetic energy projectile at a low velocity was established, and the influence of the factors such as the velocity, the warhead taper and the strength of target material on overload was obtained. The calculation results show that under the conditions of low velocity penetration of truncated cone kinetic energy projectile, the influence of penetration velocity on penetration and overloading is significant, but the effect on the time of overloading is not significant. The influence of warhead taper and target plate material intensity on the penetration and overloading time Important influences, penetration overload and duration of action decrease as the warhead taper and target plate material strength decrease. Finally, the correctness of the calculation results is verified by experiments.