超高速撞击厚靶过程的能量分配研究

发布时间：2018-07-07 16:38

本文选题：超高速撞击 + 厚靶　；参考：《固体力学学报》2016年02期

【摘要】：超高速撞击过程的能量分配研究,对于解决动能撞击、发展导弹拦截技术、判定空间飞行器被撞事件及评估碰撞破坏程度具有重要的理论意义.论文在总结前人关于超高速撞击过程能量分配的基础上,将超高速撞击厚靶过程中弹丸的动能分配归纳为靶板的变形能、弹丸与靶板作用过程应力波传播使靶板内能的增加、撞击产生碎片的崩溅能和产生电磁辐射的辐射能,并结合理论推导、实验和数值模拟对撞击速度为2.61km/s且正碰撞2A12铝靶的能量分配进行了定量计算.研究结果表明:无论在弹坑的形貌、尺寸还是辐射温度等方面,实验测量结果、理论推导结果与数值模拟的结果均基本吻合.该研究成果在解决行驶中的车辆碰撞问题以及航空飞行器遭遇鸟撞等领域亦有重要的参考价值.
[Abstract]:The study of energy distribution in the process of hypervelocity impact has important theoretical significance for solving kinetic energy impact, developing missile interception technology, judging the collision event of space vehicle and evaluating the degree of collision damage. On the basis of summarizing the energy distribution in the hypervelocity impact process, the kinetic energy distribution of the projectile during the hypervelocity impact on the thick target is reduced to the deformation energy of the target plate, and the stress wave propagation during the interaction between the projectile and the target plate results in the increase of the energy in the target plate. The splashing energy of debris and the radiation energy of electromagnetic radiation produced by impact are calculated quantitatively by means of experiments and numerical simulations. The energy distribution of 2A12 aluminum target with impact velocity of 2.61km/s is calculated quantitatively. The results show that the experimental results are in good agreement with the numerical simulation results in terms of the shape, size and radiation temperature of the crater. The research results also have important reference value in solving the problem of vehicle collision and aircraft encounter bird collision and other fields.
【作者单位】：沈阳理工大学装备工程学院;北京理工大学爆炸科学与技术国家重点实验室;
【基金】：国家自然科学基金项目(11272218;11472178) 辽宁省“百千万人才工程”培养经费项目辽宁省高校优秀人才支持计划资助项目(LR2013008) 辽宁省兵器科学与技术重点实验室开放基金项目资助
【分类号】：O313.4

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