发射过程中混合燃料应力状态的数值分析(英文)
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摘要
炸药装药在发射条件下的安全性问题已成为高能量炸药应用的一个技术障碍,引起了各国的广泛重视。燃料空气炸药(FAE)战斗部是近年来倍受国内外关注的新概念武器。目前关于FAE装药的发射安全性特别是高过载环境下的发射安全性研究还不系统、不够深入,也没有给予足够的重视。运用爆炸力学程序Object MMIC程序分析了FAE战斗部发射过程中的应力和应力率变化规律。分析结果表明,FAE战斗部发射过程中受到的应力和应力率不同于传统的发射过程,因此,有必要建立适用于FAE武器的全新的发射安全性理论。这些研究对提高FAE战斗部发射安全性提供了依据。
The launching safety of explosive charge drastically affecting the application of high explosive should be used with care.The researchers are interested in the low cost and high efficiency of FAE(fuel air explosive) charged warhead.However,few references about the launching safety of the mixed fuel,especially under high launching load,can be found.In this paper,the pressure and pressure-rate in the mixed fuel during launching was analyzed by the explosion mechanics programming Object MMIC.The analysis shows that the pressure and pressure rate are different from those obtained from the traditional launching safety theory.Therefore,it is necessary for FAE weapon to establish a new launching safety theory by means of the innovative method combining the pressure wave stage with the inertia stage.
The launching safety of explosive charge drastically affecting the application of high explosive should be used with care.The researchers are interested in the low cost and high efficiency of FAE(fuel air explosive) charged warhead.However,few references about the launching safety of the mixed fuel,especially under high launching load,can be found.In this paper,the pressure and pressure-rate in the mixed fuel during launching was analyzed by the explosion mechanics programming Object MMIC.The analysis shows that the pressure and pressure rate are different from those obtained from the traditional launching safety theory.Therefore,it is necessary for FAE weapon to establish a new launching safety theory by means of the innovative method combining the pressure wave stage with the inertia stage.
引文
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[15]Dymond J H,Si mth E B.The Viral Coefficients of Pure Gases and Mixtures,A Critical Complication[M].Oxford:Clarendon Press,1980.
[16]Han X P,Zhang Y C,Shen Y P,et al.AStudy of Dynamic Response and Constitutive Model of Energetic Materials[J].Acta Mechanic Sinica,1996,5:319-326.(in Chinese)韩小平,张元冲,沈亚鹏,等.COMP.B复合炸药动态力学性能和塑性流动本构关系的研究[J].力学学报,1996,5:319-326.
[17]Jia N W.Viscoplasticity Mechanics and Engineering[M].Beijing:Seism Press,2000.(in Chinese)贾乃文.粘塑性力学及工程应用[M].北京:地震出版社,2000.
[2]Zhang Q,Yan H,Bai C H.The Research on Dynamics of Launching over Loading of Charge[J].Shock and Vibra-tion,2003,22(2):78-80.(in Chinese)张奇,闫华,白春华.装药发射过载动力学研究[J].振动与冲击,2003,22(2):78-80.
[3]The Editorial Group of Explosion and Function.Explosion and Function[M].Beijing:National Defence IndustryPress,1979:323-325.(in Chinese)北京工业学院八系爆炸及其作用编写组.爆炸及其作用[M].北京:国防工业出版社,1979:323-325.
[4]Hui J M,Liu R H,Ge G L.Study on Increasing the Power of FAE(Ⅰ)[J].Journal of Naijing University of Sci-ence and Technology,1995,19(5):472-476.(in Chinese)惠君明,刘荣海,葛桂兰.提高FAE威力的研究(Ⅰ)[J].南京理工大学学报,1995,19(5):472-476.
[5]Pu J S,Bai C H,Liang H M,et al.Dispersed Detonation of Multinary Fuel Mixture[J].Chinese Journal of Explo-sives and Propellants,1998,(1):1-5.(in Chinese)浦加顺,白春华,梁慧敏,等.多元混合燃料分散爆轰研究[J].火炸药学报,1998,(1):1-5.
[6]Wang Z Q.Objected-Oriented Explosion Mechanics Eulerian Multi-Materials Numerical Method and It’s Applica-tion[D].Beijing:Beijing Institute of Technology,2000.(in Chinese)王仲琦.面向对象的爆炸力学Euler型多物质数值方法及其应用研究[D].北京:北京理工大学,2000.
[7]Wang Z Q,Zhang Q,Bai C H.Numerical Si mulation on Influence of Hole Depth on Explosion Effect[J].ChineseJournal of Rock Mechanics and Engineering,2002,21(2):550-553.(in Chinese)王仲琦,张奇,白春华.孔深影响爆炸应力波特性的数值分析[J].岩石力学与工程学报,2002,21(4):550-553.
[8]Wang Z Q,Zhang Q,Bai C H.Numerical Si mulation on Variation of Density of the Soil Compacted by Explosion[J].Chinese Journal of Geotechnical Engineering,2001,23(23):353-355.(in Chinese)王仲琦,张奇,白春华.爆炸挤压粘土密度变化过程的数值模拟[J].岩土工程学报,2001,23(23):353-355.
[9]Sun Q Y,Zhang Q,Bai C H,et al.Numerical Analysis on Blasting Effects in Concrete Plank[J].Chinese Journal ofMechanics in Engineering,2006,27(3):56-59.(in Chinese)孙庆云,张奇,白春华,等.混凝土板爆破作用数值分析[J].力学与实践,2006,27(3):56-59.
[10]Youngs D L.Ti me-Dependent Multi-Material Flow with Large Fluid Distortion[A]//Morton K W,Baines MJ.Numerical Method for Fluid Dynamics[C].New York:Academic Press,1982.
[11]Yu Z L.A Eulerian Numerical Method for 3-D Multi-Component Fluid Dynamics[A]//Beijing Workshop on Com-putation Fluid Dynamics.Computation Fluid Dynamics[C].Beijing:Institute of Applied Physics and ComputationalMathematics,1998:44-57.(in Chinese)于志鲁.一种用于三维多物质流体力学的欧拉数值方法[A]//计算流体力学编写组.计算流体力学[C].北京:应用物理与计算数学研究所,1998:44-57.
[12]Hol mquist T J,Johnson G R,Cook W H.A Computational Constitute Model for Concrete Subjected to LargeStrain,High Strain Rates and High Pressure[A].The 14th Int Sym Ballistics,Quebee,Canada,1993:591-600.
[13]Xu X S.The Guidance to Practical State Equations[M].Beijing:Science Press,1986.(in Chinese)徐锡申.实用物态方程理论导引[M].北京:科学出版社,1986.
[14]Henrych J.The Dynamics of Explosion andits Use[M].Translated by Xiong J G.Beijing:Science Press,1987:161-170.(in Chinese)亨利奇.爆炸动力学及其应用[M].熊建国,译.北京:科学出版社,1987:161-170.
[15]Dymond J H,Si mth E B.The Viral Coefficients of Pure Gases and Mixtures,A Critical Complication[M].Oxford:Clarendon Press,1980.
[16]Han X P,Zhang Y C,Shen Y P,et al.AStudy of Dynamic Response and Constitutive Model of Energetic Materials[J].Acta Mechanic Sinica,1996,5:319-326.(in Chinese)韩小平,张元冲,沈亚鹏,等.COMP.B复合炸药动态力学性能和塑性流动本构关系的研究[J].力学学报,1996,5:319-326.
[17]Jia N W.Viscoplasticity Mechanics and Engineering[M].Beijing:Seism Press,2000.(in Chinese)贾乃文.粘塑性力学及工程应用[M].北京:地震出版社,2000.
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