基于爆轰产物膨胀驱动金属加速能力的评定方法
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摘要
研究炸药爆轰驱动与加速金属能力的表征与评定方法,为炸药的选型与应用等提供理论和技术支撑。基于瞬时定容爆轰和产物等熵膨胀假定,分别采用多方指数型状态方程和JWL状态方程推导了爆轰驱动与加速金属的驱动压力模型和驱动能量模型;采用所得到的模型对6种典型炸药进行了计算,并分析了驱动压力和驱动能量随爆轰产物膨胀进程的变化规律;在此基础上,提出了表征与评定炸药爆轰驱动与加速金属能力的参数——驱动压力指数(Kp)和驱动能量指数(KE)。研究结果针对炸药爆轰驱动与加速金属的能力提供了定量表征与评定方法,为炸药爆轰性能和驱动与加速金属能力的关联性给出了理论依据。
The characterization and evaluation methods of explosive detonation driving and accelerating metal capability are studied. Based on the assumption of instantaneous constant volume detonation and the product of the entropy expansion,the driving pressure model and the driving energy model of detonation driving and accelerating metal were derived by using the multi exponential and JWL state equation respectively. Then 6 typical explosives were calculated by the model,and the variations of the driving force and the driving energy with the expansion process of detonation products were analyzed. And the parameters driving pressure index( Kp) and the driving energy index( KE) were proposed to characterize and evaluate the detonation driving and metal acceleration. The results were provided a quantitative characterization and evaluation method,and given theory evidence about the relationship between explosive detonation performance and the ability to drive and accelerate metal.
The characterization and evaluation methods of explosive detonation driving and accelerating metal capability are studied. Based on the assumption of instantaneous constant volume detonation and the product of the entropy expansion,the driving pressure model and the driving energy model of detonation driving and accelerating metal were derived by using the multi exponential and JWL state equation respectively. Then 6 typical explosives were calculated by the model,and the variations of the driving force and the driving energy with the expansion process of detonation products were analyzed. And the parameters driving pressure index( Kp) and the driving energy index( KE) were proposed to characterize and evaluate the detonation driving and metal acceleration. The results were provided a quantitative characterization and evaluation method,and given theory evidence about the relationship between explosive detonation performance and the ability to drive and accelerate metal.
引文
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2 Hardesty D R.Kennedy J E.Thermo chemical estimation of explosive energy output[J].Combustion and Flame,1977,28:45-59
3 Kamlet M J,Finger M.An alternative method for calculating Gurney velocities[J].Combustion and Flame,1979,34:213-214
4 Chou P C.Improved formulas for velocity,acceleration,and projection angle of explosively driven liners[J].Propellants,Explosives,Pyrotechnics,1983,8:175-183
5 Koch A.A simple relation between the detonation velocity of an explosive and its Gurney energy[J].Propellants,Explosives,Pyrotechnics,2002,27:365-368
6 Danel J F,Kazandjian L.A few remarks about the Gurney energy of condensed explosives[J].Propellants,Explosives,Pyrotechnics,2004,29(5):314-316
7 Keshavarz M H.An alternative method for estimation of Gurney velocity based on assumed detonation products[J].Chinese Journal of Energetic Materials,2004,14(6):449-452
8 Keshavarz M H,Semnani A.The simplest method for calculating energy output and Gurney velocity of explosives[J].Journal of Hazardous Materials,2006,131:1-5
9 Keshavarz M H.New method for prediction of the Gurney energy of high explosives[J].Propellants,Explosives,Pyrotechnics,2008,33:316-320
10 Lim S.Acceleration profile of a flat flyer driven by detonation isentrope[J].Propellants,Explosives,Pyrotechnics,2013,38:410-418
11 Frem D.A simple relationship for the calculation of the Gurney velocity of high explosives using the BKW thermochemical code[J].Journal of Energetic Materials,2015,33:140-144
12 Mathieu D.Prediction of Gurney parameters based on an analytic description of the expanding products[J].Journal of Energetic Materials,2015,33:102-115
13 Frem D.Simple correlations for the estimation of propellants specific impulse and the Gurney velocity of high explosives[J].Combustion Science and Technology,2016,188(1):77-81
14 Frem D.The use of the propellant specific impulse for the prediction of the prompt and terminal Gurney velocity of high explosives[J].Journal of Energetic Materials,2016,34:399-408
15北京工业学院八系.爆炸及其作用[M].北京:国防工业出版社,1979Eight Department of Beijing Institute of technology.Explosion and its effect[M].Beijing:National Defend Industry Press,1979
16 Lee E L,Hornig H C,Kury J W.Adiabatic expansion of high explosive detonation products,UCRL-50422[R].San Francisco:University of California,1968
17 Kury J W,Hornig H C,Lee E L.Metal acceleration by chemical explosives[C]//4th Symposium(International)on Detonation,White Oak,Maryland.Portland:Office of Naval Reseach,1965:3-13
18张宝平,张庆明,黄风雷.爆轰物理学[M].北京:兵器工业出版社,2006Zhang Baoping,Zhang Qingming,Huang Fenglei.Detonation physics[M].Beijing:The Publishing House of Ordnance Industry,2006
19南宇翔,蒋建伟,王树有.一种CL-20基压装混合炸药JWL状态方程参数研究[J].含能材料,2015,23(6):516-521Nan Yuxiang,Jiang Jianwei,Wang Shuyou.JWL equation of state of detonation product for CL-20 based pressed composite explosive[J].Chinese Journal of Energetic Material,2015,23(6):516-521
2 Hardesty D R.Kennedy J E.Thermo chemical estimation of explosive energy output[J].Combustion and Flame,1977,28:45-59
3 Kamlet M J,Finger M.An alternative method for calculating Gurney velocities[J].Combustion and Flame,1979,34:213-214
4 Chou P C.Improved formulas for velocity,acceleration,and projection angle of explosively driven liners[J].Propellants,Explosives,Pyrotechnics,1983,8:175-183
5 Koch A.A simple relation between the detonation velocity of an explosive and its Gurney energy[J].Propellants,Explosives,Pyrotechnics,2002,27:365-368
6 Danel J F,Kazandjian L.A few remarks about the Gurney energy of condensed explosives[J].Propellants,Explosives,Pyrotechnics,2004,29(5):314-316
7 Keshavarz M H.An alternative method for estimation of Gurney velocity based on assumed detonation products[J].Chinese Journal of Energetic Materials,2004,14(6):449-452
8 Keshavarz M H,Semnani A.The simplest method for calculating energy output and Gurney velocity of explosives[J].Journal of Hazardous Materials,2006,131:1-5
9 Keshavarz M H.New method for prediction of the Gurney energy of high explosives[J].Propellants,Explosives,Pyrotechnics,2008,33:316-320
10 Lim S.Acceleration profile of a flat flyer driven by detonation isentrope[J].Propellants,Explosives,Pyrotechnics,2013,38:410-418
11 Frem D.A simple relationship for the calculation of the Gurney velocity of high explosives using the BKW thermochemical code[J].Journal of Energetic Materials,2015,33:140-144
12 Mathieu D.Prediction of Gurney parameters based on an analytic description of the expanding products[J].Journal of Energetic Materials,2015,33:102-115
13 Frem D.Simple correlations for the estimation of propellants specific impulse and the Gurney velocity of high explosives[J].Combustion Science and Technology,2016,188(1):77-81
14 Frem D.The use of the propellant specific impulse for the prediction of the prompt and terminal Gurney velocity of high explosives[J].Journal of Energetic Materials,2016,34:399-408
15北京工业学院八系.爆炸及其作用[M].北京:国防工业出版社,1979Eight Department of Beijing Institute of technology.Explosion and its effect[M].Beijing:National Defend Industry Press,1979
16 Lee E L,Hornig H C,Kury J W.Adiabatic expansion of high explosive detonation products,UCRL-50422[R].San Francisco:University of California,1968
17 Kury J W,Hornig H C,Lee E L.Metal acceleration by chemical explosives[C]//4th Symposium(International)on Detonation,White Oak,Maryland.Portland:Office of Naval Reseach,1965:3-13
18张宝平,张庆明,黄风雷.爆轰物理学[M].北京:兵器工业出版社,2006Zhang Baoping,Zhang Qingming,Huang Fenglei.Detonation physics[M].Beijing:The Publishing House of Ordnance Industry,2006
19南宇翔,蒋建伟,王树有.一种CL-20基压装混合炸药JWL状态方程参数研究[J].含能材料,2015,23(6):516-521Nan Yuxiang,Jiang Jianwei,Wang Shuyou.JWL equation of state of detonation product for CL-20 based pressed composite explosive[J].Chinese Journal of Energetic Material,2015,23(6):516-521