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LIU W S , LU Y , ZHOU Q F , et al. Complex load of torpedo near-field explosion and its damage mode to ships [J ] . Acta Armamentarii , 2021 , 42 ( 4 ): 842 - 850 . (in Chinese) DOI: 10.3969/j.issn.1000-1093.2021.04.018 http://doi.org/10.3969/j.issn.1000-1093.2021.04.018 A numerical analysis model of near-boundary underwater explosion was established based on nonlinear explicit dynamic analysis software LS-DYNA in order to evaluate the damage efficiency of torpedo underwater explosion to ships. The calculated results of explosion load under near-free liquid surface boundary conditions were compared with the calculated results of empirical formulas in Ref.［6］ and the experimental results in Ref.［17］, verifying that the proposed numerical simulation method can well reflect the shock wave pressure of the near-field underwater explosion and the multiple bubble pulsation processes. The technology is used to build a numerical simulation model close to the actual combat boundary conditions, and calculate and analyze the damage mode of the torpedo near-field explosion to the ship under multiple conditions. The results show that different boundary conditions in the near field have an important effect on the pulsating load of underwater explosion bubbles. Under different conditions, shock wave, bubble pulsation and water jet load have complex coupling effects with ship structure. The effect of torpedo on the ship in the near field under different conditions shows different energy output structures, which is closely related to the final damage mode of ship, and there is an optimal detonation distance to maximize the total energy of torpedo acting on the ship.

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赵倩 , 聂建新 , 王秋实 , 等 . 含铝炸药水下爆炸及其对舰船毁伤的数值模拟 [J ] . 兵工学报 , 2017 , 38 ( 2 ): 298 - 304 . DOI: 10.3969/j.issn.1000-1093.2017.02.013 http://doi.org/10.3969/j.issn.1000-1093.2017.02.013 炸药对舰船的毁伤效果是考核炸药配方是否合理的重要依据之一。为了研究含铝炸药的铝氧比对舰船毁伤的影响，通过数值模拟的方法研究了黑索今基含铝炸药的能量输出对舰船的毁伤效果，从位移、加速度、应力和应变四个方面对舰船毁伤效果进行评估。结果表明，在近场范围内，随着铝氧比的增加，舰船总体毁伤效果和局部损伤效果呈先增大、后减小的趋势，并且在铝氧比为0.36时，炸药对舰船的毁伤效果最佳。依据铝氧比和能量释放规律的关系可以得出，近场冲击波能是舰船毁伤的主要原因。

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