基于量纲分析的爆炸冲击波效应靶模型分析与实验研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (6) : 100-103.

论文

李丽萍，孔德仁，王芳，商飞，贾云飞

作者信息 +

Modeling research and experiment verification for reactant plate model subjected to explosion shock wave based on dimensional analysis

LI Li-ping，KONG De-ren，WANG Fang，SHANG Fei，JIA Yun-fei

Author information +

文章历史 +

摘要

针对传统的冲击波压力电测法易受爆炸场寄生效应干扰问题，提出基于效应靶塑性变形的爆炸冲击波压力评定方法。由于效应靶理论模型复杂、参数较多，利用量纲分析方法简化模型获得爆炸冲击波压力作用的效应靶最大挠度与炸药TNT当量、炸高及炸距之关系，并建立冲击波压力作用的效应靶最大挠度计算模型；设计100 kg、60 kg、20 kg 三种标准TNT爆炸的立靶、平靶实验，用回归分析法获得二者经验模型系数。结果表明，立靶与平靶两种结构效应靶最大挠度实验结果与经验模型计算结果误差分别优于3.59%及3.33%。该研究可指导战斗部冲击波压力评估，进而减少爆炸实验量。

Abstract

In order to solve the problem of interference in traditional electric measurement of shock wave pressure, a method to evaluate shock wave based on reactant plate plastic deformation is proposed. In case of the theory model is complex and multiple parameters, the dimensional analysis can simplify the progress. With it, the relations of the deformation of reactant plate with TNT equivalent, mounting height and distance of explosion and reactant plate are obtained. Afterwards, the deformation model of reactant plate under standard TNT explosive shock wave is established. Finally, three groups of experiments are designed to measuring the reactant plate deformation in explosion shock wave in three TNT equivalents of 100 Kg, 60 Kg and 20 Kg. And the regression analysis method is applied to calculate the coefficients. Through comparison of the deformation from experiment with the model, the error of vertical reactant plate and horizontal reactant plate is better than 3.59% and 3.33% respectively. Thus this analysis provides new ideals for evaluation of shock wave damage effectiveness assessment and can greatly reduce the amount of explosive experiment.

导出引用

李丽萍，孔德仁，王芳，商飞，贾云飞. 基于量纲分析的爆炸冲击波效应靶模型分析与实验研究[J]. 振动与冲击, 2016, 35(6): 100-103

LI Li-ping，KONG De-ren，WANG Fang，SHANG Fei，JIA Yun-fei. Modeling research and experiment verification for reactant plate model subjected to explosion shock wave based on dimensional analysis[J]. Journal of Vibration and Shock, 2016, 35(6): 100-103

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