徐维铮,吴卫国

• 1:武汉理工大学高性能舰船技术教育部重点实验室
• 2:武汉理工大学交通学院船舶海洋与结构工程系

摘要(Abstract)：

封闭空间爆炸载荷主要包含瞬态冲击波和持续时间较长的准静态超压。为了研究封闭空间爆炸载荷特性,基于FORTRAN平台,采用三阶WENO有限差分格式编写了爆炸波高精度三维数值计算程序。应用Sod激波管、双爆轰波碰撞等经典算例验证了所开发数值程序的可靠性。在封闭空间内炸药爆炸波数值计算的基础上,基于冲量等效原则提出封闭空间内爆炸载荷简化模型,理论推导给出准静态超压峰值计算公式并通过数值计算结果验证了该公式的可靠性。开发的高精度爆炸波三维数值计算程序及提出的简化载荷模型可用于封闭空间内爆炸载荷的快速计算,为工程抗爆结构设计提供载荷输入。

关键词(KeyWords)： 封闭空间爆炸;三阶WENO格式;数值计算;简化载荷模型;准静态超压

Abstract:

Keywords:

基金项目(Foundation): 国防基础研究项目(B1420133057);; 国家自然科学基金项目(51409202);; 中央高校基本科研业务费资助(2016-YB-016)

作者(Author): 徐维铮,吴卫国

参考文献(References)：

• [1]丁阳,陈晔,师燕超.室内爆炸超压荷载简化模型[J].工程力学,2015(3):119-125.[1]DING Yang,CHENG hua,SHI Yan-chao.Simplified model of overpressure loading caused by internal blast[J].Engineering Mechanics,2015(3):119-125.(in Chinese)
• [2]EDRI I,SAVIR Z,FELDGUN V R,et al.On blast pressure analysis due to a partially confined explosion:I Experimental Studies[J].International Journal of Protective Structures,2011,2(1):1-20.
• [3]FELDGUN V R,KARINSKI Y S,EDRI I,et al.On blast pressure analysis due to a partially confined explosion:II Numerical Studies[J].International Journal of Protective Structures,2012,3(1):61-80.
• [4]WU C,LUKASZEWICZ M,SCHEBELLA K,et al.Experimental and numerical investigation of confined explosion in a blast chamber[J].Journal of Loss Prevention in the Process Industries,2013,26(4):737-750.
• [5]张晓伟,张庆明,施鹏,等.内爆条件下建筑物等效载荷研究[J].北京理工大学学报,2013,33(2):133-138.[5]ZHANG Xiao-wei,ZHANG Qing-ming,SHI Peng,et al.Investigation on the equivalent loading of constructions under internal explosion[J].Transactions of Beijing Institute of Technology,2013,33(2):133-138.(in Chinese)
• [6]胡洋,朱建芳,朱锴.长方体单腔室空腔环境内爆炸效应的实验研究[J].爆炸与冲击,2016,36(3):97-98.[6]HU Yang,ZHU Jian-fang,ZHU Kai.Experimental study on explosion effect in a closed single rectangular cavity[J].Explosion and Shock Waves,2016,36(3):97-98.(in Chinese)
• [7]LIU X D,OSHER S,CHAN T.Weighted essentially nonoscillatory schemes[J].Journal of Computational Physics,1994,115(1):200-212.
• [8]JIANG G S,SHU C W.Efficient implementation of weighted eno schemes[J].Journal of Computational Physics,1996,126(1):202-202.
• [9]SHU C W.Essentially non-oscillatory and weighted essentially non-oscillatory schemes for hyperbolic conservation laws[M].Institute for Computer Applications in Science and Engineering(ICASE),1997:325-432.
• [10]SHU C W,OSHER S.Efficient implementation of essentially non-oscillatory shock-capturing schemes[J].Journal of Computational Physics,1988,77(2):439-471.
• [11]FELDGUN V R,KARINSKI Y S,EDRI I,et al.Prediction of the quasi-static pressure in confined and partially confined explosions and its application to blast response simulation of flexible structures[J].International Journal of Impact Engineering,2016,90(15):46-60.