毕业设计说明书(论文)外文摘要
Title Study on the follow-through penetrator adapted to the requirements of the new tandem warhead
Abstract
The tandem warhead composed by forward shaped charge and backward follow-through penetrator is a important trend of large strong fortifications weapons. This paper mainly studies the follow-through penetrator of a new tandem penetrating warhead which has three parts. Analysis, calculation and simulation the impact of the follow-through warhead, which includes pre-charge detonated and the pre-damage concrete by theoretical calculation, using the finite element analysis software ANSYS/AUTODYN-2D.
In this paper, the design clapboard to meet explosion-proof conditions, calculation and simulation studies on the pre-shaped charge role in the formation of damage concrete targets. According to the state of the concrete damage, and work out the initial velocity of the penetrator and the burst height of the second shaped charge in it. With into the penetrator shell design and simulation, and ultimately make a diagram with the structure of the follow-through warhead.
Keywords penetration, shaped charge, tandem warhead, follow-through warhead, pre-damage concrete, numerical simulation
目 次
1 绪论 1
1.1 引言 1
1.2 国内外研究现状 2
1.3 本文的研究目的、手段及主要内容 4
1.4 本章小结 5
2 随进子弹受前级聚能装药的影响分析 6
2.1 引言 6
2.2 随进子弹受冲击波超压作用影响分析 6
2.3 随进子弹受冲量的影响分析 18
2.4 本章小结 20
3 随进子弹对混凝土的侵彻过程中所受影响分析 21
3.1 引言 21
3.2 随进子弹的作用目标 21
3.3 动能侵彻体对混凝土的垂直侵彻作用 29
3.4 动能侵彻体对损伤混凝土垂直侵彻作用 37
3.5 本章小结 40
4 随进子弹结构设计 41
4.1 引言 41
4.2 随进子弹内二级聚能装药设计 41
4.3 随进子弹内隔爆及三级子弹设计 44
4.4 随进子弹结构设计 44
4.5 本章小结 48
结论 49
致谢 51
参考文献 52
1 绪论
1.1 引言
自20世纪90年代以来,以美国为主要作战国的军事打击行动中,使用了大量的动能侵彻战斗部武器,这种战斗部依靠弹体飞行的较大动能来侵彻靶板,达到穿透靶板进入毁伤目标内部并引爆炸药对其造成巨大杀伤和破坏作用。但动能侵彻战斗部有着致命的缺点:侵彻深度受弹体着速影响大;弹着角和攻角较大时,容易发生跳飞现象,不能达到成功侵彻的效果[1-4];侵彻深度达不到对付坚固目标的要求。因此,人们对动能侵彻战斗部进行了很多改进,串联侵彻战斗部就是重要的改进之一。