聚能装药中炸药能量利用率研究  

Research on the explosive energy utilization of shaped charge

作　　者：林加剑[1,2] 任辉启[2] 王朝成[2,3] 

机构地区：[1]安徽大学,安徽合肥230601 [2]总参工程兵科研三所,河南洛阳471023 [3]安徽理工大学,安徽淮南232001

出　　处：《防护工程》2014年第1期61-66,共6页Protective Engineering

基　　金：中国博士后科学基金项目（20100481453）

摘　　要：采用理论分析方法得出了炸药能量利用率和装药长径比之间的关系，为最佳装药长径比的确定提供了理论依据。以大锥角聚能装药结构为例，对不同装药长径比之下的炸药能量利用率进行数值计算，结合理论分析和数值计算结果，给出了最佳的装药长径比。根据炸药能量利用率的相关研究结果，对75mm口径变壁厚药型罩结构进行装药结构优化设计。数值模拟结果表明，合理设计聚能装药结构能提高炸药能量利用率，可以减少约20％的装药量，并对爆炸成型弹丸（EFP）成型和初速影响很小。The relationship between explosive energy utilization and charge length diameter ratio is obtained by the method of theoretical analysis, and theoretical basis is provided for determining the best charge length diameter ratio. The explosive energy utilization ratios at different charge length diameter ratios are calculated by numerical simulation taking the large cone angle shaped charge structure as example. The optimal charge length diameter ratio is given by combining with the theoretical analysis and numerical results. Based on the research results of explosive energy utilization ratio, the shaped charge of the liner structure of 75 mm in diameter with wall thickness variation was optimally designed, and the results of numerical simulation show that the explosive energy utilization rate is im-proved and the charge weight is reduced by about 20%. At the same time, the influence on the forming and the ini- tial velocity of EFP is very small.

关 键 词：聚能装药 能量利用率 有效装药 爆炸成型弹丸 

分 类 号：TU318[建筑科学—结构工程]