半穿甲弹对舰船钢的穿甲弹道特性研究

发布时间：2018-05-24 08:28

本文选题：高效毁伤 + 穿甲力学　；参考：《南京理工大学》2016年硕士论文

【摘要】：水面舰船在海上战争中起到至关重要的作用,而舰船的侧舷结构作为防御反舰导弹等武器起到生命线的作用。由于要保证舰船其他方面的性能,所以舰船侧舷结构主要是由加筋结构组成。具有一定的穿甲能力和爆破威力的半穿甲弹战斗部,是打击舰船的有力武器之一,因此各国纷纷把半穿甲弹作为打击舰船的首要武器。半穿甲弹对多层靶板的毁伤以及穿甲过程中弹丸的弹道特性,特别是侵彻多层加筋靶板过程中弹丸弹道的偏转,到目前为止还未做到比较透彻的研究。因此本文采用实验加仿真的方式从以下几个方面,对半穿甲弹侵彻加筋靶板的弹道特性进行了研究：(1)根据穿甲理论以及能量守恒定律给出了半穿甲侵彻加筋靶板的数学模型,并运用数学模型与相关文献进行比较,从而验证模型的可靠性。(2)介绍了半穿甲弹以及加筋靶板的材料和参数的选择,并且给出了两者的J-C模型；利用三维软件AutoCAD和SolidWorks进行两者的模型设计；然后运用LS-DYNA软件进行数值仿真,并与相关文献的实验进行比较,并从其中选择一种工况进行半穿甲弹不同弹着角情况下侵彻单层加筋靶板的数值模拟,得到了剩余速度、弹道偏转以及靶板破坏等方面的规律。(3)首先对多层加筋靶板进行间隔设计,然后利用LS-DYNA软件进行半穿甲弹在不同初始攻角、不同弹着角的两种情况下侵彻多层加筋靶板的数值模拟,得到了剩余速度、弹道偏转以及靶板破坏等方面的规律。(4)通过对多层靶板不同倾角情况下进行穿甲试验,研究穿甲过程的相关规律,根据实验情况进行数值模拟,其结果并与实验结果进行比较。通过本文的研究,得到了半穿甲弹在不同攻角以及不同弹着角情况下对单层和多层加筋靶板穿甲的相关规律,所得结论可以用于指导半穿甲弹和舰船结构的设计和应用,为国防事业做出一些贡献。
[Abstract]:Surface ships play an important role in naval warfare, and the side-side structure of ships plays a lifeline role in defense against anti-ship missiles and other weapons. Because of ensuring the performance of other aspects of the ship, the side-side structure of the ship is mainly composed of stiffened structures. Half-armour-piercing projectile warhead with certain armour-piercing ability and blasting power is one of the most powerful weapons to attack warships, so many countries have taken semi-armour-piercing projectile as the primary weapon to attack warships. The damage caused by semi-piercing projectile to multilayer target plate and the ballistic characteristics of projectile in the process of penetration, especially the ballistic deflection of projectile in the process of penetrating multi-layer stiffened target plate, have not been thoroughly studied so far. In this paper, by means of experiment and simulation, the ballistic characteristics of semi-piercing projectile penetrating stiffened target plate are studied from the following aspects: (1) based on the armour-piercing theory and the law of conservation of energy, the mathematical model of semi-piercing stiffened target plate is given. The reliability of the model is verified by comparing the mathematical model with the related literature. The selection of materials and parameters of the semi-piercing projectile and the stiffened target plate is introduced, and the J-C model of the two models is given. Three dimensional software AutoCAD and SolidWorks are used to model design, and then LS-DYNA software is used to carry out numerical simulation, and compared with the experiment of related literature. From one of them, the numerical simulation of the semi-piercing projectile penetrating the single-layer stiffened target plate with different impact angles is carried out, and the remaining velocity is obtained. The rules of ballistic deflection and target plate failure. (3) the multilayer stiffened target plate is designed at first, and then the semi-piercing projectile is designed with LS-DYNA software at different initial attack angles. Numerical simulation of penetration of multilayer stiffened target plate with different impact angles is carried out, and the law of residual velocity, ballistic deflection and damage of target plate is obtained. The correlation law of armor-piercing process was studied, and the numerical simulation was carried out according to the experimental conditions. The results were compared with the experimental results. Through the research in this paper, we get the correlation law of semi-piercing projectile with different attack angle and different impact angle to single layer and multi-layer stiffened target plate. The conclusion can be used to guide the design and application of semi-piercing projectile and warship structure. To contribute to the cause of national defense.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U674.70;TJ413.2

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