摘要
采用量纲分析的方法,分析了两装药同时爆炸加载下金属薄板动态响应过程中的相关独立变量,并使用有限元软件进行数值计算,研究了两装药同时起爆情况下装药量、装药间距及炸距对45钢靶板响应特性的影响。基于数值模拟和量纲分析的结果,分别建立了相关参量与金属靶板最大变形挠度的函数关系,获得了适用于一定范围的靶板挠度计算模型。该研究能够在一定程度上实现不同分布装药的爆炸效应快速计算。
To study the response law of a metal target plate under the simultaneous initiation of two charges and to construct a calculation model for the deformation and deflection of the target plate under the action of dual explosion source shock waves,the dynamic response of the metal plate under the action of double explosion sources was studied through dimensional analysis.Based on the numerical simulation calculation results using the finite element software,the influence of the charge quality,charge spacing,and vertical distance from the charge to the target plate of the double explosion source on the maximum deflection of the 45 steel target plate was summarized.The results show that the maximum deflection of the target plate increases linearly with the charge mass,decreases linearly with the charge spacing and decreases exponentially with the vertical distance from the charge to the target plate.The functional relationship between different parameters and the maximum deformation deflection of the target plate was fitted.This study can to some extent achieve rapid calculation of the explosion effect of charges with different distributions.
作者
赵伟成
翟红波
毛伯永
杨峰
ZHAO Weicheng;ZHAI Hongbo;MAO Boyong;YANG Feng(Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi,China)
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2023年第12期1-11,共11页
Explosion and Shock Waves
基金
国家自然科学基金(12102337)。
关键词
同时起爆
量纲分析
金属靶板
动态响应
simultaneous explosion
dimensional analysis
metal target plate
dynamic response
