Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion
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摘要: 采用模型实验方法，研究了近自由面水下接触爆炸下防雷舱舷侧空舱的内压载荷特性。根据实验模型的破坏结果和压力测试结果，分析了水下爆炸产物与防雷舱舷侧空舱的相互作用过程以及水下爆炸产物的压力变化规律。研究表明：防雷舱舷侧空舱的载荷可分为冲击波载荷、准静态压力载荷和负压载荷3种，防雷舱舷侧空舱的破坏主要由冲击波载荷和准静态压力载荷造成，并且准静态压力载荷的比冲量是冲击波载荷的数倍，而负压载荷对防雷舱舷侧空舱破坏的影响可忽略不计。Abstract: By carrying out model experiments, we investigated the internal load characteristics of the broadside cabin of the defensive structure subjected to underwater contact explosion near the free surface. According to the damage of the experimental models and the pressure profile measured by sensors, we described the interaction between underwater explosion products and the broadside cabin of the defensive structure, and analyzed the pressure change of gas in the broadside cabin of the structure. The results show that the gas pressure in the broadside cabin of the structure can be divided into the shock wave phase, the quasi-static pressure phase and the negative pressure phase, and the broadside cabin is damaged mostly by the shock wave and quasi-static pressure. In addition the specific-impulse of the quasi-static pressure is several times bigger than that of the shock wave, and the effect of the negative pressure on the damage of the broadside cabin is negligible.
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Key words:
- underwater explosion /
- broadside cabin /
- defensive structure /
- load characteristics
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图 2 实验模型工装件设计图(单位：mm)
Figure 2. Design drawings of experimental model components (unit: mm)
图 4 55 g装药近水面接触爆炸下模型的破坏
Figure 4. Experimental model damaged by underwater contact explosion of 55 g charge
图 5 110 g装药近水面接触爆炸下模型的破坏
Figure 5. Experimental model damaged by underwater contact explosion of 110 g charge
图 6 55 g装药近水面接触爆炸下钢板的破坏
Figure 6. Steel plates damaged by underwater contact explosion of 55 g charge
图 7 110 g装药近水面接触爆炸下钢板的破坏
Figure 7. Steel plates damaged by underwater contact explosion of 110 g charge
图 8 55 g装药近水面接触爆炸下形成的破片
Figure 8. Fragments formed in underwater contact explosion of 55 g charge
图 9 110 g装药近水面接触爆炸下形成的破片
Figure 9. Fragments formed in underwater contact explosion of 110 g charge
图 11 55 g装药近水面接触爆炸下两个传感器测得的压力曲线
Figure 11. Pressure curves measured by two sensors in underwater contact explosion of 55 g charge
图 12 110 g装药近水面接触爆炸下两个传感器测得的压力曲线
Figure 12. Pressure curves measured by two sensors in underwater contact explosion of 110 g charge
表 1 破片质量
Table 1. Mass of fragments
w/g 不同位置搜集的破片质量/g 破片总质量/g 爆炸筒底 舷侧空舱内 液舱内 圆环状大破片 其余小破片 55 150.7 41.2 44.9 50.0 286.8 110 117.6 23.4 169.8 135.2 446.0 
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表 2 压力曲线的3个阶段
Table 2. Three phases of pressure curve
w/g 传感器编号 冲击波载荷阶段 准静态压力载荷阶段 负压载荷阶段起始时刻/ms 起止时刻/ms 超压峰值/MPa 比冲量/(Pa·s) 起止时刻/ms 超压峰值/MPa 比冲量/(Pa·s) 55 1#
2#5.2-5.8
5.1-5.60.647
1.39985.2
136.75.8-14.2
5.6-12.40.345
0.213624.2
460.314.2
12.4110 1#
2#4.2-4.6
4.0-4.30.788
1.61195.6
113.74.6-12.2
4.3-9.80.527
0.4321 125.1
505.412.2
9.8
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[1] 姚熊亮, 刘文韬, 张阿漫, 等.水下爆炸气泡及其对结构毁伤研究综述[J].中国舰船研究, 2016, 11(1):36-45. doi: 10.3969/j.issn.1673-3185.2016.01.006Yao Xiongliang, Liu Wentao, Zhang Aman, et al. Review of the research on underwater explosion bubbles and the corresponding structural damage[J]. Chinese Journal of Ship Research, 2016, 11(1):36-45. doi: 10.3969/j.issn.1673-3185.2016.01.006 [2] Klaseboer E, Hung K C, Wang C, et al. Experimental and numerical investigation of the dynamics of an underwater explosion bubble near a resilient/rigid structure[J]. Journal of Fluid Mechanics, 2005, 537:387-413. doi: 10.1017/S0022112005005306 [3] Dadvand A, Dawoodian M, Khoo B C, et al. Spark-generated bubble collapse near or inside a circular aperture and the ensuing vortex ring and droplet formation[J]. Acta Mechanica Sinica, 2013, 29(5):657-666. doi: 10.1007/s10409-013-0074-6 [4] 刘云龙, 张阿漫, 王诗平, 等.基于边界元法的近平板圆孔气泡动力学行为研究[J].物理学报, 2013, 62(14):144703. doi: 10.7498/aps.62.144703Liu Yunlong, Zhang Aman, Wang Shiping, et al. Study on bubble dynamics near plate with hole based on boundary element method[J]. Acta Physica Sinica, 2013, 62(14):144703. doi: 10.7498/aps.62.144703 [5] 刘云龙, 汪玉, 张阿漫.有倾角的竖直壁面附近气泡与自由面相互作用研究[J].物理学报, 2013, 62(21):214703. doi: 10.7498/aps.62.214703Liu Yunlong, Wang Yu, Zhang Aman. Interaction between bubble and free surface near vertical wall with inclination[J]. Acta Physica Sinica, 2013, 62(21):214703. doi: 10.7498/aps.62.214703 [6] 李健, 潘力, 林贤坤, 等.近自由面水下爆炸气泡与结构相互作用数值计算研究[J].振动与冲击, 2015, 34(18):13-18. http://d.old.wanfangdata.com.cn/Periodical/zdycj201518003Li Jian, Pan Li, Lin Xiankun, et al. Numerical study on interaction between bubble and structure near free surface in underwater explosion[J]. Journal of Vibration and Shock, 2015, 34(18):13-18. http://d.old.wanfangdata.com.cn/Periodical/zdycj201518003 [7] 张婧, 施兴华, 王善, 等.水下接触爆炸载荷作用下舰船防护结构的仿真和实验研究[J].船舶力学, 2008, 12(4):649-656. doi: 10.3969/j.issn.1007-7294.2008.04.019Zhang Jing, Shi Xinghua, Wang Shan, et al. Numerical simulation and experiment research of defensive structure subjected to underwater contact explosions[J]. Journal of Ship Mechanics, 2008, 12(4):649-656. doi: 10.3969/j.issn.1007-7294.2008.04.019 [8] 陈卫东, 王飞, 陈浩.舰船舷侧结构水下抗爆试验和机理研究[J].中国造船, 2009, 50(3):65-73. doi: 10.3969/j.issn.1000-4882.2009.03.008Chen Weidong, Wang Fei, Chen Hao. Research on blast resistance mechanism of warship broadside defensive structure subjected to underwater contact explosion[J]. Shipbuilding of China, 2009, 50(3):65-73. doi: 10.3969/j.issn.1000-4882.2009.03.008 [9] 张伦平, 张晓阳, 潘建强, 等.多舱防护结构水下接触爆炸吸能研究[J].船舶力学, 2011, 15(8):921-929. doi: 10.3969/j.issn.1007-7294.2011.08.013Zhang Lunping, Zhang Xiaoyang, Pan Jianqiang, et al. Energy research about multicamerate defence structure subjected to underwater contact explosion[J]. Journal of Ship Mechanics, 2011, 15(8):921-929. doi: 10.3969/j.issn.1007-7294.2011.08.013 [10] 唐廷, 朱锡, 侯海量, 等.大型水面舰艇防雷舱结构防护机理数值仿真[J].哈尔滨工程大学学报, 2012, 33(2):142-149. doi: 10.3969/j.issn.1006-7043.201012064Tang Ting, Zhu Xi, Hou Hailiang, et al. Numerical simulation study on the defense mechanism of a cabin near the shipboard for large surface vessels[J]. Journal of Harbin Engineering University, 2012, 33(2):142-149. doi: 10.3969/j.issn.1006-7043.201012064 [11] 侯海量, 张成亮, 朱锡.水下舷侧防雷舱结构防护效能评估方法研究[J].中国舰船研究, 2013, 8(3):22-26. http://d.old.wanfangdata.com.cn/Periodical/zgjcyj201303005Hou Hailiang, Zhang Chengliang, Zhu Xi. Evaluation methods of the performance of multi-layered blast protection blisters subjected to underwater contact explosions[J]. Chinese Journal of Ship Research, 2013, 8(3):22-26. http://d.old.wanfangdata.com.cn/Periodical/zgjcyj201303005 [12] 陈海龙, 周姝, 孙丰, 等.水下接触爆炸对舰船壳板的毁伤试验效果估算方法评估[J].舰船科学技术, 2013, 35(10):33-37. doi: 10.3404/j.issn.1672-7649.2013.10.008Chen Hailong, Zhou Shu, Sun Feng, et al. Estimation on estimation method of warship shell experimental damage subjected to underwater contact explosion[J]. Ship Science and Technology, 2013, 35(10):33-37. doi: 10.3404/j.issn.1672-7649.2013.10.008 [13] 叶双序.爆炸作用基础[M].南京:解放军理工大学出版社, 2011. -
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