多点起爆驱动飞片的数值模拟研究  

Numerical Simulation of Flyer Driven by Multi-Points Initiation

作　　者：任小伟 程立 张郑伟 曾晓云 李晓刚 汪靖程 郭庆[1] REN Xiao-wei;CHENG Li;ZHANG Zheng-wei;ZENG Xiao-yun;LI Xiao-gang;WANG Jing-cheng;GUO Qing(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100081;Jilin City Jiang ji Special Industries Co.Ltd.,Jilin,132021)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]吉林江北机械制造有限责任公司,吉林吉林132021

出　　处：《火工品》2023年第3期1-6,共6页Initiators & Pyrotechnics

基　　金：国家自然科学基金委员会与中国工程物理研究院联合基金项目(U1530135)。

摘　　要：为了给高速大尺寸加载装置设计提供参考,基于流固耦合算法对炸药驱动飞片的过程进行了数值模拟,分析了不同起爆网络和装药高度对飞片平面范围和速度的影响。结果表明:保持装药高度相同,飞片平面范围主要受起爆网络排布的影响,三角形点阵网络作用下的飞片平面范围优于四边形点阵网络;各多点起爆网络作用下飞片的速度无明显区别,但相对于单点起爆均有明显提升,85mm装药高度27点起爆网络作用下飞片速度提升24.6%;保持起爆网络相同,飞片平面范围随装药高度增加而减小,飞片速度随装药高度增加而增加。To provide reference to the design of high speed loading device with large size,based on the fluid-solid coupling algorithm,the process of flyer driven by explosive was simulated,the influence of different initiation networks and charge heights on the flyer plane range and velocity were analyzed.The results show that with the same charge height,the plane range of flyers is mainly affected by arrangement of initiation network,the triangular net is better than quadrilateral net.There is little difference in flyer velocity under the action of multi-points initiation network,but it is significantly improved compared with single point initiation.The flyer velocity under the action of 27 points initiation network at 85 mm charge height is increased by 24.6%.With the same initiation network,the plane range of flyers decreases with the increase of charge height,and the flyer velocity increases with the increase of charge height.

关 键 词：多点起爆 炸药驱动 大尺寸飞片 平面范围 

分 类 号：TJ450.2[兵器科学与技术—火炮、自动武器与弹药工程]