AUTODYN新型末敏子弹药战斗部结构设计

摘要随着EFP战斗部技术的深入发展，具有更高命中概率，毁伤面积的 MEFP战斗部技术也得到了广泛的应用。本文以一种典型的末敏子弹药为研究对象，结合 EFP 战斗部成型理论，提出了一种可爆炸成型为一个主 EFP 和周向 16 个行星 EFP 的新型末敏子弹 MEFP 战斗部结构。基于AUTODYN 软件，对MEFP战斗部进行了成型过程与侵彻威力数值仿真，进而对 MEFP 药型罩进行了结构优化。仿真结果表明，所设计的 MEFP 战斗部优化方案获得的主EFP 及行星EFP成型效果良好，侵彻威力满足设计要求。59925
毕业论文关键词末敏子弹药 MEFP战斗部主 EFP 行星EFP 数值仿真
Title The Structural Design of a New Type Warhead on Terminal-Sensitive Submunition
Abstract With the further development of EFP warhead, the MEFP warhead technology is wide applied due to its high hit probability and lethal area. In this paper, a typical Terminal-Sensitive Submunition(TSS) was taken as a study subject. On the basis of shaping mechanism of EFP warhead, a MEFP warhead structure of TSS，which could explode and form a main central EFP surrounded by sixteen planetary EFP, was proposed. With the analysis software ANSYS AUTODYN， the explosive forming process was simulated and the penetration power of MEFP was obtained. Then the structural parameters of the MEFP warhead liner were optimized.The results show that the designed warhead can form main EFP and planetary EFP with good shapes, and the penetration power meet the design requirements. Keywords：TSS MEFP warhead main EFP planetary EFP

1 绪论 .. 1

1.1 研究背景与意义 ... 1

1.2 末敏弹EFP及MEFP战斗部研究现状 . 2

1.3 本文研究内容 ... 3

2 EFP战斗部成型原理及结构因素分析 5

2.1 等壁厚球缺罩EFP 战斗部基本结构参数 ... 5

2.2 等壁厚球缺药形罩微元运动分析 ... 6

2.3 等壁厚球缺药形罩微元运动计算分析 . 11

2.4 变壁厚球缺药型罩 EFP 成型仿真及成型规律简单总结 . 14

2.5 本章小结 . 18

3 MEFP结构设计及2D仿真 . 19

3.1 MEFP战斗部基本结构参数 19

3.2 MEFP战斗部各部件材料模型 21

3.3 MEFP 成型仿真条件设置 ... 23

3.4 MEFP 2D成型仿真及简单优化 .. 26

3.5 本章小结 . 33

4 MEFP战斗部3D成型仿真 .. 34

4.1 MEFP战斗部3D模型建立及网格划分 .. 34

4.2 MEFP战斗部3D成型仿真基本设置 .. 36

4.3 MEFP 3D成型效果 .. 37

4.4 EFP速度及行星EFP飞散分析 .. 39

4.5 本章小结 . 44

5 MEFP侵彻效能分析 45

5.1 侵彻仿真模型建立及仿真坏境设置 . 45

5.2 行星MEFP侵彻效能分析结果 ... 46

5.3 主 EFP侵彻效能分析 . 47

5.4 本章小结 . 50

结论 51 AUTODYN新型末敏子弹药战斗部结构设计:http://www.751com.cn/jixie/lunwen_65267.html