论文部分内容阅读
设计了一种更为强力的钻地弹-钨镇重钻地弹,以提高钻地弹对硬介质目标的侵彻能力。将特殊设计的钨合金结构作为镇重体填加至钻地弹的壳体内部,以提高钻地弹的整体密度,增大面质量,从而提高了钻地弹的侵彻能力。设计了实验用靶、可分离弹托和尾翼,成功进行钨镇重钻地弹缩比弹侵彻混凝土靶的实验室实验和外场实验,并进行了相同条件下普通钻地弹缩比弹对比侵彻实验。实验结果表明:相对于普通钻地弹,钨镇重钻地弹的侵彻能力有了较大幅度的提高;钨镇重钻地弹的弹体结构强度设计满足侵彻需要,弹体在侵彻过程中能有效生存。采用实验的方法研究了缩比率对钻地弹侵彻深度的影响,对钻地弹侵彻深度相似律进行了修正。根据相似律的研究结果,钻地弹的侵彻深度与缩比率成正比关系,但是,该结论忽略了侵彻过程中靶介质动态强度应变率效应的影响。进行了大量的不同缩比率的实验,并收集了相关的实验数据,分析认为,钻地弹的侵彻深度与缩比率呈1.15次方关系。该结论有助于通过缩比实验结果较为准确的预估原型弹的侵彻能力。
Designed a more powerful earth bombs - Tungsten heavy-duty bombs to improve the penetration of hard-to-earth targets. The specially designed tungsten alloy structure is added as a ballast body to the shell of the earth-boring bomb to increase the overall density of the earth-boring bomb and increase the surface quality, thus improving the penetration capability of the earth-boring bomb. The experimental target was designed, the strut and tail were detached, and the laboratory experiment and field experiment of penetrating concrete target of rebound ratio rebound in tungsten town were successfully carried out. Penetrate the experiment. The experimental results show that the penetration capability of the Tungsten Heavy-Duty Retrograde to ground bombs has been greatly improved compared with the conventional earth-boring bombs. The process of survival can be effective. The influence of shrinkage ratio on penetration depth of drilling earth was studied by experiment method, and the similarity law of penetration depth of drilling earth was amended. According to the research results of similarity law, the penetration depth of the earth-boring projectile is directly proportional to the shrinkage ratio. However, this conclusion neglects the influence of the dynamic strain-rate effect of the target medium during the penetration process. Conducted a large number of experiments with different reduction ratios and collected relevant experimental data. The analysis shows that the depth of penetration of the earth-boring bomb is 1.15 times as much as the shrinkage ratio. This conclusion helps to predict the penetration ability of prototype projectiles more accurately by scaling the experimental results.