在本文中,研究了一種串聯(lián)式戰(zhàn)斗部,該戰(zhàn)斗部主要針對不同類型的裝甲目標。該串聯(lián)戰(zhàn)斗部主要由兩部分組成,第一部分是聚能射流戰(zhàn)斗部,第二部分是穿甲戰(zhàn)斗部。本文主要使用ANSYS AUTODYN有限元分析軟件研究聚能射流戰(zhàn)斗部的不同因素對彈丸整體性能和侵徹威力的影響規(guī)律。在論文的第一部分,主要通過理論分析和數(shù)值模擬,研究了聚能射流戰(zhàn)斗部的形成過程。并分析了射流穿甲的三個階段:開坑階段、穩(wěn)定侵徹階段和末端侵徹階段。研究和分析了影響射流成型的因素:藥型罩厚度,藥型罩頂角錐度和襯板形狀。在論文的第二部分,研究了穿甲戰(zhàn)斗部中的彈丸速度、彈芯直徑、彈芯材料以及靶板上的預制穿孔對穿甲戰(zhàn)斗部的侵徹性能的影響規(guī)律。本文主要研究的是彈丸垂直著靶的侵徹過程,而在以上考慮過的相關(guān)因素以外,還有聚能射流爆炸的沖擊波等相關(guān)因素需要進一步研究。 

【文章來源】：南京理工大學江蘇省 211工程院校

【文章頁數(shù)】：100 頁

【學位級別】：碩士

【文章目錄】：
摘要
Abstract
1 Introduction
    1.1 Brief introduction
    1.2 Classification of projectiles and armors
        1.2.1 The small arm projectiles
        1.2.2 Fragment simulators
        1.2.3 Long rod penetrators
        1.2.4 The shaped charge
        1.2.5 Explosively formed projectiles
    1.3 Materials and properties of armors
        1.3.1 Metals
        1.3.2 Ceramics
        1.3.3 Polymers
        1.3.4 Composite materials
    1.4 Armor configurations
        1.4.1 Passive armors
        1.4.2 Reactive armors
        1.4.3 Active armors
    1.5 Shaped charge modeling
        1.5.1 Shaped charge jet formation model
        1.5.2 Shaped charge jet penetration models
    1.6 Rod projectiles
        1.6.1 Penetration and perforation of metals
        1.6.2 Plate perforation
    1.7 Literature review
2 Numerical simulations software
    2.1 Introduction
    2.2 Autodyn's solvers
        2.2.1 Lagrange
        2.2.2 Euler
        2.2.3 ALE
        2.2.4 SPH
    2.3 Material models
        2.3.1 Equation of State
        2.3.2 The Constitutive Relations
        2.3.3 Strength model
        2.3.4 Failure Model
    2.4 Conclusion
3 Tandem warhead
    3.1 Introduction
    3.2 Brief history of tandem warheads
    3.3 Development Trend of Tandem Warhead
        3.3.1 Improve the penetration capability of tandem warheads
        3.3.2 Development of hollow charge warheads
        3.3.3 Intelligence fuze
        3.3.4 Multi-purpose, multi-effect, multi-carrier warheads
    3.4 Conclusion
4 Simulation of tandem warhead first stage
    4.1 Introduction
    4.2 The main features of the shaped charge jet
    4.3 Analysis of target plate penetration
        4.3.1 Impact pit phase
        4.3.2 Stable penetration phase
        4.3.3 Breakthrough phase
    4.4 Numerical simulation of target plate penetration by shaped charge
        4.4.1 Description of geometrical and numerical model
    4.5 Numerical simulation results and analysis
        4.5.1 Influence of liner wall thickness
        4.5.2 The influence of changing the cone angle
        4.5.3 The influence of changing the liner geometrical shape
    4.6 Conclusion
5 Simulation of tandem warhead second stage
    5.1 Introduction
    5.2 Penetration process
        5.2.1 The transient phase
        5.2.2 The primary phase of the penetration process
        5.2.3 The secondary phase of the penetration process
        5.2.4 After-flow phase
    5.3 Simulation
        5.3.1 Simulation Calculation Model
        5.3.2 Rod body piercing process analysis
    5.4 Analysis of factors that affect the effective piercing process of rod body
        5.4.1 Influence of initial velocity of the rod body
        5.4.2 Influence of the rod body diameter
        5.4.3 Influence of the rod body material
        5.4.4 Influence of the pre-perforated target
    5.5 Conclusion
6 Conclusion
    6.1 Main work and conclusion
    6.2 Issues for further studies
Acknowledgements
References


【參考文獻】：
期刊論文
[1]彈體高速侵徹混凝土的效應實驗[J]. 何翔,徐翔云,孫桂娟,沈俊,楊建超,金棟梁.  爆炸與沖擊. 2010(01)
[2]基于ANSYS/LS-DYNA的高速碰撞過程的數(shù)值模擬[J]. 谷長春,石明全.  系統(tǒng)仿真學報. 2009(15)
[3]Experimental investigation of penetration performance of shaped charge into concrete targets[J]. Cheng Wang Tianbao Ma Jianguo Ning State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China.  Acta Mechanica Sinica. 2008(03)



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