| 内爆爆距对舱壁变形影响的数值研究 |
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| 引用本文： | 黄松,赵鹏铎,尹建平,李旭东,徐豫新. 内爆爆距对舱壁变形影响的数值研究[J]. 北京理工大学学报, 2018, 38(S2): 37-40 |
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| 作者姓名： | 黄松 赵鹏铎 尹建平 李旭东 徐豫新 |
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| 作者单位： | 海军研究院, 北京 100161;中北大学 机电工程学院, 山西, 太原 030051,海军研究院, 北京 100161,中北大学 机电工程学院, 山西, 太原 030051,海军研究院, 北京 100161;中北大学 机电工程学院, 山西, 太原 030051,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081 |
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| 基金项目： | 国家自然科学基金资助项目（11302259） |
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| 摘 要： | 为研究舱内爆炸时爆距的改变对舱壁的毁伤效应，运用有限元分析软件建立了舱室内爆的仿真模型，分析了爆距变化对舱壁的变形影响及舱内冲击波压力的作用情况.结果表明：在爆距比L1/L2>1时，远端舱壁的变形挠度总大于近端舱壁.当爆距L1增大时，远端舱壁的挠度值呈线性增加，挠度增量约为爆距增量的11%，而近端舱壁的挠度变化不明显；舱内爆炸后作用于远端舱壁的冲击波为初始冲击波与来自近端舱壁及四周刚性舱壁的反射冲击波相互作用而形成的叠加波.
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| 关 键 词： | 内爆 爆距 数值模拟 |
| 收稿时间： | 2018-12-01 |
Numerical Simulation of Influence of Detonation Distance on Deflection of Bulkhead Deformation in In-Cabin Explosion |
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| HUANG Song,ZHAO Peng-duo,YIN Jian-ping,LI Xu-dong and XU Yu-xin. Numerical Simulation of Influence of Detonation Distance on Deflection of Bulkhead Deformation in In-Cabin Explosion[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2018, 38(S2): 37-40 |
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| Authors: | HUANG Song ZHAO Peng-duo YIN Jian-ping LI Xu-dong XU Yu-xin |
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| Affiliation: | Naval Research Acadamy, Beijing 100161, China;School of Mechatronic Engineering, North University of China, Taiyuan 030051, China,Naval Research Acadamy, Beijing 100161, China,School of Mechatronic Engineering, North University of China, Taiyuan 030051, China,Naval Research Acadamy, Beijing 100161, China;School of Mechatronic Engineering, North University of China, Taiyuan 030051, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | In order to study the damage effect of the change of explosion distance on in-cabin explosion, the simulation model of cabin explosion was established by using the finite element analysis software. The deformation of the bulkhead and the pressure of shock wave were analyzed. The results show that when the blasting distance ratio is L1/L2>1, the deflection of the far bulkhead is always greater than that of the near bulkhead. When the detonation distance L1 increases, the deflection of the far bulkhead increases linearly, and the deflection increment is about 11% of the explosion distance increment, but the deflection of the near bulkhead does not change significantly. The shock wave that reaches the far bulkhead for the first time after the explosion in the cabin is the superimposed wave formed by the interaction of the initial shock wave and the reflection shock wave from the near bulkhead and the rigid bulkhead. |
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| Keywords: | internal blast detonation distance numerical simulation |
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