LS-DYNA新型反机场弹药设计

摘要本文运用理论分析、经验公式和数值模拟等研究方法，对串联战斗部应用在反机场弹药上的技术进行了研究。开展反机场跑道弹药终点效应的数值模拟和理论研究，对战斗部的设计具有重要意义。60971

本文根据前人对环形药型罩的结构设计，提出前级装药采用环形聚能装药结构的设计方案。环形EFP在爆轰波和爆炸产物的冲击下，环形药型罩的翻转和挤压，在其对称面沿着轴向方向，形成高速环形聚能装药侵彻体。以内外罩微元等冲量的方案和质量补偿作为理论根据，设计出环形EFP聚能装药结构，并运用LS-DYNA有限元程序，对环形EFP结构在环形起爆下对机场混凝土跑道的侵彻过程进行数值模拟研究，并相对应的设计出后级随进爆破弹结构。最后对反机场弹药的总体方案反复论证和较完整设计。

毕业论文关键词环形EFP 聚能装药侵彻串联战斗部数值模拟混凝土

毕业设计说明书（论文）外文摘要

Title The new anti-runway ammunition

Abstract The method of theory analysis and typical experience and numerical simulation being used in this paper, application the theory of tandem warhead technique to anti-runway ammunition is studied. Experiment research and numerical simulation on terminal effect of anti-runway tandem warhead will benefit to warhead design.Experience summed up by our predecessors, the structural design proposal of in the front of annular shaped charge. Annular EFP is annular explosively formed penetrator in the circumferential and symmetrical direction of the annular liner formed from the annular liner invert as the detonation productions.

Based on the equivalent momentum of both parts of the liner at its collision point along the axis and the mass compensation of the liner parts, the structural design proposal of annular EFP shaped charge, based on the LS-DYNA software, by using the element technology to numerical simulate and analyze the warhead penetration question, and design of the tandem following the back charge. At last, complete graph of anti-runway tandem warhead after repeatedly.

Keywords annular EFP shaped charge penetration tandem warhead numerical simulation concrete

1 绪论 1

1.1 引言 1

1.2 反机场弹药国内外发展趋势 1

1.3 EFP研究现状及发展趋势 3

1.4 串联战斗部研究概况及发展趋势 6

1.5 本文的研究目的、手段和主要内容 10

2 机场跑道目标易损性综述 13

2.1 机场跑道目标特性分析 13

2.2 机场跑道失效特性分析 13

2.3 混凝土侵彻相关理论 14

3 前级装药的设计理论和形成机理 17

3.1 环形聚能装药结构设计的理论依据 17

3.2 环形EFP形成的理论研究 20

4 前级装药环形EFP的成型和侵彻能力的仿真计算 29

4.1 LS/DYNA简介 29

4.2 前级装药环形EFP的建模 32

4.3 前级装药结构成型和侵彻过程的数值模拟分析 LS-DYNA新型反机场弹药设计:http://www.751com.cn/jixie/lunwen_66562.html