本文選題：高效毀傷 + 穿甲力學(xué)　； 參考：《南京理工大學(xué)》2016年碩士論文

【摘要】：水面艦船在海上戰(zhàn)爭(zhēng)中起到至關(guān)重要的作用,而艦船的側(cè)舷結(jié)構(gòu)作為防御反艦導(dǎo)彈等武器起到生命線的作用。由于要保證艦船其他方面的性能,所以艦船側(cè)舷結(jié)構(gòu)主要是由加筋結(jié)構(gòu)組成。具有一定的穿甲能力和爆破威力的半穿甲彈戰(zhàn)斗部,是打擊艦船的有力武器之一,因此各國(guó)紛紛把半穿甲彈作為打擊艦船的首要武器。半穿甲彈對(duì)多層靶板的毀傷以及穿甲過(guò)程中彈丸的彈道特性,特別是侵徹多層加筋靶板過(guò)程中彈丸彈道的偏轉(zhuǎn),到目前為止還未做到比較透徹的研究。因此本文采用實(shí)驗(yàn)加仿真的方式從以下幾個(gè)方面,對(duì)半穿甲彈侵徹加筋靶板的彈道特性進(jìn)行了研究：(1)根據(jù)穿甲理論以及能量守恒定律給出了半穿甲侵徹加筋靶板的數(shù)學(xué)模型,并運(yùn)用數(shù)學(xué)模型與相關(guān)文獻(xiàn)進(jìn)行比較,從而驗(yàn)證模型的可靠性。(2)介紹了半穿甲彈以及加筋靶板的材料和參數(shù)的選擇,并且給出了兩者的J-C模型；利用三維軟件AutoCAD和SolidWorks進(jìn)行兩者的模型設(shè)計(jì)；然后運(yùn)用LS-DYNA軟件進(jìn)行數(shù)值仿真,并與相關(guān)文獻(xiàn)的實(shí)驗(yàn)進(jìn)行比較,并從其中選擇一種工況進(jìn)行半穿甲彈不同彈著角情況下侵徹單層加筋靶板的數(shù)值模擬,得到了剩余速度、彈道偏轉(zhuǎn)以及靶板破壞等方面的規(guī)律。(3)首先對(duì)多層加筋靶板進(jìn)行間隔設(shè)計(jì),然后利用LS-DYNA軟件進(jìn)行半穿甲彈在不同初始攻角、不同彈著角的兩種情況下侵徹多層加筋靶板的數(shù)值模擬,得到了剩余速度、彈道偏轉(zhuǎn)以及靶板破壞等方面的規(guī)律。(4)通過(guò)對(duì)多層靶板不同傾角情況下進(jìn)行穿甲試驗(yàn),研究穿甲過(guò)程的相關(guān)規(guī)律,根據(jù)實(shí)驗(yàn)情況進(jìn)行數(shù)值模擬,其結(jié)果并與實(shí)驗(yàn)結(jié)果進(jìn)行比較。通過(guò)本文的研究,得到了半穿甲彈在不同攻角以及不同彈著角情況下對(duì)單層和多層加筋靶板穿甲的相關(guān)規(guī)律,所得結(jié)論可以用于指導(dǎo)半穿甲彈和艦船結(jié)構(gòu)的設(shè)計(jì)和應(yīng)用,為國(guó)防事業(yè)做出一些貢獻(xiàn)。
[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.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：U674.70;TJ413.2

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