Abstract：Peak pressure of the shock wave in water,an important factor for evaluating shock wave intensity of the underwater explosion,is vital to relevant studies. Based on the similarity law of the explosion,this research makes a deduction on similar requirements of the simulation experiments of underwater explosion and establishes the regression model about peak pressure of the underwater shock wave under test condition. Simulated tests were carried out under the condition of two types of water bottom media and different water depths,then peak pressures of underwater blast wave at different measuring points were acquired. Through formula fitting of test data by the π theorem,dimensional analysis and the least squares,a formula consistent with similarity law of explosion was obtained. And the analysis on regression precision of formula verified its accuracy. Significance test indicates that the influence of distance between measuring points and charge on peak pressure of underwater blast wave is the largest while that of water depth is the least and can be ignored. With analysis on data from tests with different water media,it is concluded that water bottom mediums affect peak pressure more. And peak pressure of blast wave in test at the water bottom of soft mud with stones is about 4/3 times that of the water bottom of soft mud.
王振雄1，顾文彬1，陈江海1，徐景林1，刘欣1，陆鸣2. 浅水中爆炸水底介质对水中冲击波峰值压力影响的试验研究[J]. 振动与冲击, 2017, 36(4): 243-248.
WANG Zhenxiong1,GU Wenbin 1,CHEN Jianghai 1,XU Jinglin 1,LIU Xin1,LU Ming2 . Experimental study on the influence of the bottom medium on the peak pressure of explosion shock waves in shallow water. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(4): 243-248.
[1] 顾文彬.浅层水中爆炸冲击波压力特性试验与数值模拟研究.博士后研究工作报告[R].解放军理工大学.2000.
GU Wen-bin. Experimental Investigation and Numerical Simulation Studies of Propagating Characters of Exploding Shock Waves in Shallow-layer Water[R]. PLA University of Science and Technology. 2000.
[2] Bjarnholt G.Suggestions onstandards for measurement and data evaluationin the underwater explosion test[ J] .Propellants, Explosives, Pyrotechnics, 1980, 5(2/3):67-74.
[3] Hammond L.Underwater shockwave characteristics of cylindrical charges[ R] .Defence Science andTechnology Organisation, AMRL, DSTO-GD-0029.
[4] M. Michael, etc. Explosion Effects and Properties: PartⅡ. Explosion Effects in Water. Explosion Effects & Properties Part II Explosion Effects in Water, 1978.
[5] 李澎,徐更光.水下爆炸冲击波传播的近似计算[J]. 火炸药学报,2006,29(4):21-24.
LI Peng, XU Geng-guang. Approximate Calculation of Underwater Explosion Shock Wave Propagation[J]. Chinese Journal of Explosives and Propellants, 2006,29(4):21-24.
[6] 李金河,赵继波,谭多望,王彦平,张远平.炸药水中爆炸的冲击波性能[J].爆炸与冲击, 2009, 29(2): 172-176.
LI Jin-he,ZHAO Ji-bo, TAN Duo-wang, WANG Yan-ping, ZHANGYuan-ping. Underwater shock wave performances of explosives [J]. EXPLOSION AND SHOCK WAVES, 2009, 29(2): 172-176.
[7] R.H.Cole, Underwater Explosions, Princeton University Press. Princeton,1961.
[8] ZAMYSHLYSAEV. Pressure fields during underwater explosion in a free fluid[J].Dynamic Loads in Underwater Explosion, 1973,7(2):86-120.
[9] 顾文彬,叶序双,刘文华,刘强. 界面对浅层水中爆炸冲击波峰值压力影响的研[J]. 解放军理工大学学报(自然科学版)，2001,2（5）:61-63.
GU Wen-bin, YE Xu-shuang, LIU Wen-hua, LIU Qiang. Peak Pressure Investigation of Exploding Wave Influenced By Interfaces in Shallow-layer Water[J]. Journal of PLA University of Science and Technology. 2001,2（5）:61-63.
[10] 梁向前.水下爆破技术[M].北京：化学工业出版社，2013.
LIANG Xian-qian. Technology of Underwater Blasting[M].Beijing: Chemical Industry Press,2013.
[11] 周霖,徐少辉,徐更光.炸药水下爆炸能量输出特性研究[J].兵工学报,2006,27(2):235-238.
ZHOU Lin, XU Shao-hui , XU Geng-guang. Research on Energy Output Characteristics for Underwater Explosion of Explosives[J],ACTA ARMAMENTARII,2006,27(2): 235-238.
[12] Л.П.奥尔连科,孙承纬/译. 爆炸物理学（上）[M].北京：科学出版社，2011,596-648.
Л.П. ОРЛЕНКО. Explosion Physics [M]. Beijing: Science Press. 2011,596-648.
[13] 张德丰. Matlab数字信号处理与应用[M]. 北京：清华大学出版社,2010.297-327.
ZHANG De-feng. Digital Signal Processing and Implementation of Mtalab[M].Beijing: Tsinghua University Press.2010. 297-327
[14] Saito T, Marumoto M. Experimental and Numerical Studies of Underwater Shock Wave Attenuation[J]. Shock Waves. 2013,13:139-148.
[15] 顾文彬,马海洋,唐 勇,夏卫国,王清洁,马海鹏. 水底对浅水中装药爆炸效果的影响[J].爆破,2003,20（4）:88-92
GU Wen-bin, MAHai-yang, TANG Yong, XIA Wei-guo, WANG Qing-jie, MAHai-peng. Influence of Water Bottom on the Explosion Effect of Shallow-layer Water Charging [J]. Blasting. 2003,20（4）:88-92.
[16] 叶序双.爆炸力学基础[M].南京：解放军理工大学工程兵工程学院,2004.
YE Xu-shuang. Basis of Dynamics Explosion[M].Nanjing: Engineering Institute of Corps of Engineers，PLA University of Science and Technology,2004.
