摘要
针对爆炸冲击波对密闭立方体结构的毁伤效果展开研究,在自由场爆炸冲击波理论的基础上,分析了密闭立方体内爆炸冲击波的传播规律及特性,并推算出传导公式;通过采用对立方体模型的特征点进行理论计算和LS-DYNA有限元分析软件数值模拟仿真的方法,对比了不同测点的首个冲击波超压的理论计算值和数值模拟仿真值。结果表明,在密闭立方体内3个特征测点仿真值均与理论计算值相符,可为实际测量时传感器的选型与测点的布置提供理论参考依据。
In this paper,the damage effect of shock wave on the closed cubic structure is studied.Based on the free-field shock wave theory,the propagation law and characteristics of the explosion shock wave in the closed cube are analyzed,and the conduction formula is derived.By adopting method of the theoretical calculation of the feature points of the cube model and the numerical simulation of LS-DYNA finite element analysis software,the theoretical calculation values and numerical simulation values of the first shock wave over-pressure of different measuring points were compared.The results show that the simulation values of the three characteristic points in the closed cube are consistent with the theoretical calculation values,which can provide a theoretical reference for the selection of the sensor and the arrangement of the measuring points in the actual measurement.
作者
郭涛
张启威
原景超
Guo Tao;Zhang Qiwei;Yuan Jingchao(State Key Laboratory of Electronic Test Technology,North University of China,Taiyuan 030051,China;Key Laboratory of Instrument Science&Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China)
出处
《电子技术应用》
2020年第4期57-60,共4页
Application of Electronic Technique
