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
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摘要
作为评判水中爆炸冲击波强度的一个重要因素,水中冲击波峰值压力研究至关重要。在满足爆炸相似律的基础上对水中爆炸试验的相似要求进行推导,建立试验条件下水中冲击波峰值压力的回归模型。在两种水底介质、不同水深情况下进行试验,采集不同测点的水中冲击波的峰值压力,运用π定理和量纲分析、最小二乘法对试验数据进行分析,得出了符合爆炸相似律的公式,并验证了回归公式的准确性。通过显著性检验可知浅水中爆炸中测点和装药的距离对水中冲击波峰值压力的影响最大,水深因素的影响可忽略。对不同水底介质试验中的数据分析得出水底介质对峰值压力影响较大,软泥夹石水底试验中测得冲击波峰值压力约为软泥水底试验中冲击波峰值压力的4/3倍。
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.
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.
引文
[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[R].博士后研究工作报告,解放军理工大学,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 and Technology Organisation,AMRL,DSTO-GD-0029.
[4]MICHAEL M,SWISDAK J.Explosion effects and properties:PartⅡ,explosion effects in water:AD-A056694[R].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 Gengguang.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,等.炸药水中爆炸的冲击波性能[J].爆炸与冲击,2009,29(2):172-176.LI Jinhe,ZHAO Jibo,TAN Duowang,et al.Underwater shock wave performances of explosives[J].Explosion and Shock Waves,2009,29(2):172-176.
[7]COLE R H,WELLER R.Underwater explosions[J].Physics Today,2009,1(6):35.
[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,等.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 Wenbin,YE Xushuang,LIU Wenhua,et al.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.
[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 Shaohui,XU Gengguang.Research on energy output characteristics for underwater explosion of explosives[J].Acta Armamentarii,2006,27(2):235-238.
[12]ЛП奥尔连科.爆炸物理学(上)[M].孙承纬,译.北京:科学出版社,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.
[14]SAITO T,MARUMOTO M.Experimental and numerical studies of underwater shock wave attenuation[J].Shock Waves,2013,13(2):139-148.
[15]顾文彬,马海洋,唐勇,等.水底对浅水中装药爆炸效果的影响[J].爆破,2003,20(4):88-92.GU Wenbin,MA Haiyang,TANG Yong,et al.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.
[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 and Technology Organisation,AMRL,DSTO-GD-0029.
[4]MICHAEL M,SWISDAK J.Explosion effects and properties:PartⅡ,explosion effects in water:AD-A056694[R].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 Gengguang.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,等.炸药水中爆炸的冲击波性能[J].爆炸与冲击,2009,29(2):172-176.LI Jinhe,ZHAO Jibo,TAN Duowang,et al.Underwater shock wave performances of explosives[J].Explosion and Shock Waves,2009,29(2):172-176.
[7]COLE R H,WELLER R.Underwater explosions[J].Physics Today,2009,1(6):35.
[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,等.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 Wenbin,YE Xushuang,LIU Wenhua,et al.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.
[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 Shaohui,XU Gengguang.Research on energy output characteristics for underwater explosion of explosives[J].Acta Armamentarii,2006,27(2):235-238.
[12]ЛП奥尔连科.爆炸物理学(上)[M].孙承纬,译.北京:科学出版社,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.
[14]SAITO T,MARUMOTO M.Experimental and numerical studies of underwater shock wave attenuation[J].Shock Waves,2013,13(2):139-148.
[15]顾文彬,马海洋,唐勇,等.水底对浅水中装药爆炸效果的影响[J].爆破,2003,20(4):88-92.GU Wenbin,MA Haiyang,TANG Yong,et al.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.