Interaction of a shock wave with a composite shell structure under an external explosion
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摘要: 为研究冲击波与组合壳结构的相互作用，针对带防护墙的地面直立钢筋混凝土组合壳结构，考虑结构安置于地面和周边围土2种工况，开展结构爆炸实验，分析了结构外表面冲击波荷载分布及振动特性。实验结果表明：冲击波作用下，结构外表面爆炸荷载主要产生在冲击波绕射过程，确定荷载时应考虑冲击波压力在绕射传播过程中的自然衰减；整个结构中与冲击波最早接触的构件先产生振动，而后由于结构整体参与使得振动频率降低，振动幅值减小；结构周边围土可降低防护墙迎爆部分构件的振动频率，减小防护墙和组合壳的振动幅值。Abstract: In order to investigate the interaction of the shock wave on a reinforced concrete composite shell structure with the external protecting wall, the explosion experiments were carried out. There were two conditions in the experiments, the first condition was that the test structure was located on the ground, and the second one was that the test structure was surrounded by soil. The blast wave load distribution and the vibration characters of the structure were analyzed. The experimental results are as follows. Under external shock wave attack, the structure surface explosion load was mainly formed in the shock wave diffraction process. When determining the structure surface blast load, the shock wave pressure attenuation in the diffraction process should be considered. The structure component which first contacts with the shock wave first begins to vibrate, then the vibration frequency and amplitude decrease because the whole structure takes part in vibration gradually. In the experimental conditions, the soil surrounding the structure could reduce the vibration frequency of the protecting wall component which meeting shock wave, and reduce the vibration amplitudes of the protecting wall and the composite shell structure.
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Key words:
- shock wave /
- cylindrical shell /
- interaction /
- blast load /
- structure vibration
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图 5 加速度传感器的分布图 (单位:mm)
Figure 5. Distribution diagrams of acceleration sensors (unit in mm)
图 7 H=1.1 m时防护墙表面各点的压力
Figure 7. Overpressure-time curves at various pressure test points on the surface of the protecting wall when H=1.1 m
图 8 L=4.8 m，H=1.1 m时，柱壳表面各点的压力
Figure 8. Overpressure-time curves at various pressure test points on the surface of the cylindrical shell when L=4.8 m and H=1.1 m
图 9 冲击波与柱壳结构相互作用示意图
Figure 9. The interaction between the shock wave and the cylindrical shell structure
图 10 模型结构迎爆面反射压力对比
Figure 10. Reflected pressure of the blast side on the model structure
图 11 防护墙迎爆面荷载对比
Figure 11. Explosion pressure of the blast side on the protecting wall
图 12 各测点的加速度时程曲线 (Q=160 g，工况1)
Figure 12. Acceleration-time curves at various test points (Q=160 g, the first condition)
图 13 各测点的加速度时程曲线 (Q=300 g，工况1)
Figure 13. Acceleration-time curves at various test points (Q=300 g, the first condition)
图 14 各测点的加速度时程曲线(Q=300 g，工况2)
Figure 14. Acceleration-time curves at various test points (Q=300 g, the second condition)
图 15 各测点的加速度时程曲线(Q=450 g，工况2)
Figure 15. Acceleration-time curves at various test points (Q=450 g, the second condition)
图 16 2种工况下各测点的加速度时程曲线(Q=300 g)
Figure 16. Acceleration-time curves at various test points under two experimental conditions (Q=300 g)
图 17 不同条件下测点3的加速度时程曲线
Figure 17. Acceleration-time curves at test point 3 under different experimental conditions
图 18 防护墙各测点的应变时程曲线 (Q=160 g，L=4.8 m，工况1)
Figure 18. Strain-time curves at various test points of the protecting wall (Q=160 g, L=4.8 m, the first condition)
图 19 圆形柱壳底部各测点的应变时程曲线
Figure 19. Strain-time curves at various test points on the base of the circular cylindrical shell
表 1 爆炸实验条件
Table 1. Explosion experiment conditions
实验编号 工况 Q/g L/m H/m 压力测点编号 加速度测点编号 应变测点编号 1 1 160 4.8 1.1 1, 2, 3, 4, 5, 6, 7, 8 1, 2, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 9, 10 2 1 160 4.8 1.1 1, 2, 3, 4, 5, 6, 7, 8 1, 2, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 9, 10 3 1 300 6.3 1.1 1, 2, 3, 4, 5, 6, 7, 8 1, 2, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 9, 10 4 1 160 4.8 1.1 1, 4, 6, 7, 8, 9, 10, 11 1, 2, 3, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 5 1 300 4.8 1.1 2, 4, 6, 7, 8, 9, 10, 11 1, 2, 3, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 6 1 300 4.8 1.1 2, 4, 6, 7, 8, 9, 10, 11 1, 2, 3, 4, 5, 6 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 7 2 300 4.8 1.1 7, 8, 9, 10, 11 1, 2, 3, 4, 5 4, 5, 9, 10 8 2 450 4.8 1.1 7, 8, 9, 10, 11 1, 2, 3, 4, 5 4, 5, 9, 10 9 2 450 4.8 1.1 7, 8, 9, 10, 11 1, 2, 3, 4, 5 4, 5, 9, 10 
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[1] 吴昊, 方秦, 龚自明, 等. 冲击爆炸作用对核电站安全壳毁伤效应研究的进展 [J]. 防灾减灾工程学报, 2012, 32(3): 384–392.WU Hao, FANG Qin, GONG Ziming, et al. State of arts of impact and blast effects on the NPPC [J]. Journal of Disaster Prevention and Mitigation Engineering, 2012, 32(3): 384–392. [2] 葛庆子, 翁大根, 张瑞甫. 特大型LNG储罐等壳体结构抗爆研究综述 [J]. 振动与冲击, 2013, 32(11): 89–94. DOI: 10.3969/j.issn.1000-3835.2013.11.019.GE Qingzi, WENG Dagen, ZHANG Ruifu. Reviews of antiknock study on extra-large LNG storage tank and other shell structures [J]. Journal of Vibration and Shock, 2013, 32(11): 89–94. DOI: 10.3969/j.issn.1000-3835.2013.11.019. [3] 郑文凯. 大型商用飞机撞击核电站屏蔽厂房的荷载研究 [D]. 北京: 清华大学, 2013: 1-91. [4] 吴婧姝, 张兴斌, 潘蓉. 大型商用飞机撞击核安全壳破坏效应的数值模拟 [J]. 工业建筑, 2016, 46(10): 28–32. DOI: 10.13204/j.gyjz201610007.WU Jingshu, ZHANG Xingbin, PAN Rong. Numerical simulation of response and damage of nuclear containment under large commercial aircraft impact [J]. Industrial Construction, 2016, 46(10): 28–32. DOI: 10.13204/j.gyjz201610007. [5] 赵春风, 陈健云. 内爆荷载作用下钢筋混凝土安全壳的非线性响应分析 [J]. 爆炸与冲击, 2013, 33(6): 667–672. DOI: 10.11883/1001-1455(2013)06-0667-06.ZHAO Chunfeng, CHEN Jianyun. Dynamic responses of reinforced concrete containment subjected to internal blast loading [J]. Explosion and Shock Waves, 2013, 33(6): 667–672. DOI: 10.11883/1001-1455(2013)06-0667-06. [6] 刘云飞, 王天运, 贺锋, 等. 核反应堆预应力钢筋混凝土安全壳内爆炸数值分析 [J]. 工程力学, 2007, 24(8): 168–172. DOI: 10.3969/j.issn.1000-4750.2007.08.030.LIU Yunfei, WANG Tianyun, HE Feng, et al. Numerical simulation for pre-stress concrete containment under internal explosive loading [J]. Engineering Mechanics, 2007, 24(8): 168–172. DOI: 10.3969/j.issn.1000-4750.2007.08.030. [7] 张娟花, 陈鹏. CPR1000+核电厂堆腔注水蒸汽爆炸及安全壳结构响应分析 [C] // 中国核科学技术进展报告: 第四卷: 中国核学会2015年学术年会论文集. 北京: 中国原子能出版社, 2016: 1−6. [8] 杨帆, KUDRIAKOV S, 余红星, 等. 严重事故下安全壳内氢气爆燃风险数值模拟研究 [J]. 核动力工程, 2017, 38(4): 159–162. DOI: 10.13832/j.jnpe.2017.04.0159.YANG Fan, KUDRIAKOV S, YU Hongxing, et al. Numerical simulation study on containment hydrogen deflagration risk under severe accident [J]. Nuclear Power Engineering, 2017, 38(4): 159–162. DOI: 10.13832/j.jnpe.2017.04.0159. [9] PANDEY A K, KUMAR R, PAUL D K, et al. Non-linear response of reinforced concrete containment structure under blast loading [J]. Nuclear Engineering and Design, 2006, 236(9): 993–1002. DOI: 10.1016/j.nucengdes.2005.09.015. [10] 余爱萍, 王远功, 翁智远. 冲击波对核反应堆安全壳的动力响应研究 [J]. 爆炸与冲击, 1992, 12(3): 219–227.YU Aiping, WANG Yuangong, WENG Zhiyuan. Transient response of a containment structure of nuclear reactor subjected to a blast wave [J]. Explosion and Shock Waves, 1992, 12(3): 219–227. [11] 余爱萍, 王远功. 核反应堆安全壳在冲击荷载作用下的动力响应研究 [J]. 振动与冲击, 1990, 35(3): 52–59. DOI: 10.13465/j.cnki.jvs.1990.03.010.YU Aiping, WANG Yuangong. Transient response of a containment structure of nuclear reactor subjected to impact load [J]. Journal of Vibration and Shock, 1990, 35(3): 52–59. DOI: 10.13465/j.cnki.jvs.1990.03.010. [12] 王天运, 任辉启, 刘水江, 等. 爆炸冲击波作用下核电站安全壳动力分析模型 [J]. 武汉理工大学学报, 2003, 25(9): 46–48. DOI: 10.3321/j.issn.1671-4431.2003.09.014.WANG Tianyun, REN Huiqi, LIU Shuijiang, et al. Dynamic analysis model for the containment vessel of the nuclear station under blast shock wave [J]. Journal of Wuhan University of Technology, 2003, 25(9): 46–48. DOI: 10.3321/j.issn.1671-4431.2003.09.014. [13] 王天运, 任辉启, 刘立胜. 常规装药爆炸荷载作用下核电站安全壳的动力响应分析 [J]. 工程建设与设计, 2005, 4: 20–23. DOI: 10.3969/j.issn.1007-9467.2005.04.007.WANG Tianyun, REN Huiqi, LIU Lisheng. Nuclear power station concrete containment dynamical response analysis under blast load of general bomb [J]. Construction and Design for Project, 2005, 4: 20–23. DOI: 10.3969/j.issn.1007-9467.2005.04.007. [14] 王天运, 高缨, 申祖武. 有限体积元法在安全壳抗爆数值模拟中的应用 [J]. 工程建设与设计, 2006(11): 6–9. DOI: 10.3969/j.issn.1007-9467.2006.11.002.WANG Tianyun, GAO Ying, SHEN Zuwu. Finite volume element application in containment shell numerical simulation under blast shock wave [J]. Construction and Design for Project, 2006(11): 6–9. DOI: 10.3969/j.issn.1007-9467.2006.11.002. [15] 王天运, 任辉启, 张力军, 等. 爆炸地冲击作用下某核电站安全壳的破坏形式 [J]. 工程力学, 2003(S1): 397–402.WANG Tianyun, REN Huiqi, ZHANG Lijun, et al. The failure effect of nuclear reactor under ground shock wave [J]. Engineering Mechanics, 2003(S1): 397–402. [16] 王天运, 任辉启, 张力军. 安全壳钢筋混凝土简支墙抗爆性能分析 [J]. 郑州大学学报(工学版), 2004, 25(2): 39–43. doi: 10.3969/j.issn.1671-6833.2004.02.010WANG Tianyun, REN Huiqi, ZHANG Lijun. Nonlinear distribution of seismic active earth pressure on rigid retaining walls [J]. Journal of Zhengzhou University (Engineering Science), 2004, 25(2): 39–43. doi: 10.3969/j.issn.1671-6833.2004.02.010 [17] 申祖武, 刘国强, 王天运, 等. 炸药触地爆炸后核电站安全壳基底振动响应分析 [J]. 岩土力学, 2009, 30(8): 2540–2544. DOI: 10.16285/j.rsm.2009.08.061.SHEN Zuwu, LIU Guoqiang, WANG Tianyun, et al. Analysis of vibration response of containment foundation in nuclear power station after munitions bombing [J]. Rock and Soil Mechanics, 2009, 30(8): 2540–2544. DOI: 10.16285/j.rsm.2009.08.061. [18] HUANG Wensheng, ONODERA O, TAKAYAMA K. Unsteady interaction of shock wave diffracting around a circular cylinder in air [J]. Acta Mechanica Sinica, 1991, 7(4): 295–299. doi: 10.1007/BF02486736 [19] DRIKAKIS D, OFENGEIM D, TIMOFEEV E, et al. Computation of non-stationary shock-wave/cylinder interaction using adaptive-grid methods [J]. Journal of Fluids and Structures, 1997, 11: 665–691. DOI: 10.1006/jfls.1997.0101. [20] LANGLET A, SOULI M, AQUELET N, et al. Air blast reflecting on a rigid cylinder: simulation and reduced scale experiments [J]. Shock Waves, 2015, 25(1): 47–61. DOI: 10.1007/s00193-014-0531-6. 期刊类型引用(3)
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