含铝炸药爆轰产物JWL状态方程参数的预估方法研究
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摘要
含铝炸药爆轰产物JWL状态方程参数是含铝炸药爆炸性能数值模拟的基础,通常需要开展圆筒实验才能确定,成本很高。在理论计算、数值模拟和验证实验的基础上,提出了一种新的含铝炸药爆轰产物JWL状态方程参数预估方法。该方法首先拟合了LiF的Cowan状态方程参数和热力学函数系数,并用LiF代替含铝炸药爆轰过程中未反应的铝粉,运用BKW程序得到不同铝粉反应度下的多组JWL状态方程参数。在此基础上,再利用AUTODYN软件进行含铝炸药水中爆炸数值模拟,通过数值模拟结果和实验结果的对比,从而确定含铝炸药爆轰产物JWL状态方程参数。研究结果表明:该方法无需开展圆筒试验就可以确定含铝炸药的爆轰产物JWL状态方程参数。
State parameters for JWL equation are the key to simulate the explosion properties of aluminized explosives.The state parameters are usually obtained by high-cost cylinder test experiments.This study proposes a new method to gain state parameters for JWL equation based on theoretical calculation,numerical simulation and experimental validation.LiF is used to substitute non-reaction aluminum powder during detonation of aluminized explosive.Cowan equation of state parameters and thermodynamic parameters for LiF are fitted to calculate the state parameters of multi-JWL equation under various aluminum reaction degree.Then underwater explosion numerical simulation is conducted using AUTODYN software,and the simulated shock wave energy is compared with the experiment results.Finally the State Parameters of JWL Equation can be obtained.It can be inferred that this method can gain State Parameters of JWL Equation for aluminized explosive without cylinder test,which can provide certain reference to the research of aluminized explosive.
State parameters for JWL equation are the key to simulate the explosion properties of aluminized explosives.The state parameters are usually obtained by high-cost cylinder test experiments.This study proposes a new method to gain state parameters for JWL equation based on theoretical calculation,numerical simulation and experimental validation.LiF is used to substitute non-reaction aluminum powder during detonation of aluminized explosive.Cowan equation of state parameters and thermodynamic parameters for LiF are fitted to calculate the state parameters of multi-JWL equation under various aluminum reaction degree.Then underwater explosion numerical simulation is conducted using AUTODYN software,and the simulated shock wave energy is compared with the experiment results.Finally the State Parameters of JWL Equation can be obtained.It can be inferred that this method can gain State Parameters of JWL Equation for aluminized explosive without cylinder test,which can provide certain reference to the research of aluminized explosive.
引文
[1] 周正青,聂建新,覃剑锋,等.铝氧比对含铝炸药性能影响的数值模拟[J].爆炸与冲击,2015,35(4):514-520.[1] ZHOU Zheng-qing,NIE Jian-xin,QIN Jian-feng,et al.Numerical simulations on effects of Al/O ratio on performance of aluminized explosives[J].Explosion and Shock Waves,2015,35(4):514-520.(in Chinese)
[2] 项大林,荣吉利,李健,等.基于KHT程序的RDX基含铝炸药JWL状态方程参数预测研究[J].北京理工大学学报,2013,33(3):239-243.[2] XIANG Da-lin,RONG Ji-li,LI Jian,et al.JWL equation of state parameters prediction of RDX-based aluminized explosive based on KHT code[J].Transactions of Beijing Institute of Technology,2013,33(3):239-243.(in Chinese)
[3] 裴红波,焦清介,覃剑峰.基于圆筒实验的RDX/Al炸药反应进程[J].爆炸与冲击,2014,34(5):636- 640.[3] PEI Hong-bo,JIAO Qing-jie,QIN Jian-feng.Reaction process of aluminized RDX-based explosives based on cylinder test[J].Explosion and Shock Waves,2014,34(5):636- 640.(in Chinese)
[4] 计冬奎,高修柱,肖川,等.含铝炸药作功能力和JWL状态方程尺寸效应研究[J].兵工学报,2012,29(8):552-555.[4] JI Dong-kui,GAO Xiu-zhu,XIAO Chuan,et al.Study on dimension effect of accelerating ability and JWL equation of state for aluminized explosive[J].Acta Armamentarii,2012,29(8):552-555.(in Chinese)
[5] 薛再清,徐更光,王廷增,等.用修正的KHT状态方程预报炸药爆轰性能[J].北京理工大学学报,1998,18(3):290-294.[5] XUE Zai-qing,XU Geng-guang,WANG Ting-zeng,et al.Using revised KHT equation of state to predict explosives detonation property[J].Journal of Beijing Institute of Technology,1998,18(3):290-294.(in Chinese)
[6] 陈朗,龙心平,冯长根,等.含铝炸药爆轰[M].北京:科学出版社,2002:128-131.
[7] J Massoni,R Saurel,A Lefran?ois,et al.Modeling spherical explosions with aluminized energetic materials[J].Shock Waves,2006,16:75-92.
[8] CHARLES L Mader.Numerical modeling of explosives and propellants[M].Washington,D C:CRC PRESS,2007.
[9] CHASE M W,JR Davies C A.NIST-JANAF thermo-chemical tables (Fourth Edition)[M].New York:American Chemical Society and American Institute of Physics for the National Institute of Standards and Technology,1999.
[10] STANLEY P Marsh.LASL shock hugoniot data[M].Berkeley:University of California Press,1980.
[11] 周霖,杨启先.铝氧比对含铝炸药水中爆炸冲击波的影响[J].兵工学报,2008,29(8):916-919.[11] ZHOU Lin,YANG Qi-xian.The effect of Al/O ratio on underwater explosion shock wave of aluminium-containing explosives[J].Acta Armamentarii,2008,29(8):916-919.(in Chinese)
[12] 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.[12] 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.(in Chinese)
[2] 项大林,荣吉利,李健,等.基于KHT程序的RDX基含铝炸药JWL状态方程参数预测研究[J].北京理工大学学报,2013,33(3):239-243.[2] XIANG Da-lin,RONG Ji-li,LI Jian,et al.JWL equation of state parameters prediction of RDX-based aluminized explosive based on KHT code[J].Transactions of Beijing Institute of Technology,2013,33(3):239-243.(in Chinese)
[3] 裴红波,焦清介,覃剑峰.基于圆筒实验的RDX/Al炸药反应进程[J].爆炸与冲击,2014,34(5):636- 640.[3] PEI Hong-bo,JIAO Qing-jie,QIN Jian-feng.Reaction process of aluminized RDX-based explosives based on cylinder test[J].Explosion and Shock Waves,2014,34(5):636- 640.(in Chinese)
[4] 计冬奎,高修柱,肖川,等.含铝炸药作功能力和JWL状态方程尺寸效应研究[J].兵工学报,2012,29(8):552-555.[4] JI Dong-kui,GAO Xiu-zhu,XIAO Chuan,et al.Study on dimension effect of accelerating ability and JWL equation of state for aluminized explosive[J].Acta Armamentarii,2012,29(8):552-555.(in Chinese)
[5] 薛再清,徐更光,王廷增,等.用修正的KHT状态方程预报炸药爆轰性能[J].北京理工大学学报,1998,18(3):290-294.[5] XUE Zai-qing,XU Geng-guang,WANG Ting-zeng,et al.Using revised KHT equation of state to predict explosives detonation property[J].Journal of Beijing Institute of Technology,1998,18(3):290-294.(in Chinese)
[6] 陈朗,龙心平,冯长根,等.含铝炸药爆轰[M].北京:科学出版社,2002:128-131.
[7] J Massoni,R Saurel,A Lefran?ois,et al.Modeling spherical explosions with aluminized energetic materials[J].Shock Waves,2006,16:75-92.
[8] CHARLES L Mader.Numerical modeling of explosives and propellants[M].Washington,D C:CRC PRESS,2007.
[9] CHASE M W,JR Davies C A.NIST-JANAF thermo-chemical tables (Fourth Edition)[M].New York:American Chemical Society and American Institute of Physics for the National Institute of Standards and Technology,1999.
[10] STANLEY P Marsh.LASL shock hugoniot data[M].Berkeley:University of California Press,1980.
[11] 周霖,杨启先.铝氧比对含铝炸药水中爆炸冲击波的影响[J].兵工学报,2008,29(8):916-919.[11] ZHOU Lin,YANG Qi-xian.The effect of Al/O ratio on underwater explosion shock wave of aluminium-containing explosives[J].Acta Armamentarii,2008,29(8):916-919.(in Chinese)
[12] 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.[12] 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.(in Chinese)