深水爆炸二次压力波超压峰值的工程模型

doi:10.12382/bgxb.2021.0560

摘要/Abstract

摘要： 研究水下爆炸深度对二次压力波传播的影响和深水爆炸二次压力波超压峰值的定量计算方法，具有重要的工程应用价值。基于AUTODYN软件建立球形TNT装药深水爆炸的数值仿真模型，利用模拟深水爆炸罐试验数据进行了模型校验，计算与试验结果的吻合度和一致性良好。在此基础上，进行30 g球形TNT装药在5~8 000 m水深范围内爆炸共18个工况的计算，每个工况提取5个爆距的二次压力波超压峰值，共得到90个仿真数据结果。仿真数据与分析结果表明：深水爆炸二次压力波超压峰值符合爆炸相似律；深水爆炸二次压力波超压峰值随水深的增加单调连续增大，增大比率随水深的增加不断减小。通过进一步数据分析与处理，得到基于爆炸相似律结合水深修正的计算深水爆炸二次压力波超压峰值的工程模型，该模型具有重要的工程实用性和通用扩展性。

关键词: 深水爆炸, 二次压力波, 超压峰值, 爆炸相似律

Abstract: To study the influence of water depth on the propagation of underwater explosion (UNDEX) secondary pressure waves and the quantification of the overpressure peak is significant for engineering applications. A numerical simulation model for the deep-water explosion of a spherical TNT charge was established with AUTODYN, and the results were verified by the UNDEX test conducted in a pressure vessel. The calculation and test results are in good agreement and consistency. On this basis, 18 simulations for different conditions were performed to study the secondary pressure waves generated by the explostion of 30 g spherical TNT charge in the water depth range of 5 to 8 000 m, and 90 data sets were acquired. The analysis showed that: the overpressure peak of the secondary pressure wave of deep water explosion conforms to the Hopkinson law; the overpressure peak increases monotonously and continuously with the increase of water depth, and the increase rate decreases as water depth increases. With further data analysis and processing, an engineering model for calculating the overpressure peak of the secondary pressure wave of deep water explosion based on the Hopkinson law combined with water depth correction is obtained. The model has important engineering practicability and general scalability.

Key words: deepunderwaterexplosion, secondarypressurewave, peakoverpressure, Hopkinsonlaw

中图分类号:

O382

王树山，梁策，高源，桂秋阳，刘建湖，盛振新. 深水爆炸二次压力波超压峰值的工程模型[J]. 兵工学报, 2022, 43(10): 2508-2516.

WANG Shushan, LIANG Ce, GAO Yuan, GUI Qiuyang, LIU Jianhu, SHENG Zhenxin. Engineering Model for Calculating Secondary Pressure Wave Overpressure Peak in Deep Water Explosion[J]. Acta Armamentarii, 2022, 43(10): 2508-2516.

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