Optimized design of biconical liner by orthogonal method  

作　　者：曲忠伟 颜事龙 沈兆武 马宏昊 

机构地区：[1]College of Science,Anhui University of Science and Technology [2]Department of Modern Mechanics,University of Science and Technology of China

出　　处：《Journal of Beijing Institute of Technology》2015年第1期8-17,共10页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(51174183);the Anhui Natural Science Foundation of China(1508085ME85)

摘　　要：A biconical liner was optimized to improve its penetration ability. Its formation and pene- tration mechanism was studied through numerical simulation and experiments. And the influence of different liner geometry sizes on the jet performance was analyzed using the orthogonal method. The liner formed the high-speed jet with an explosively formed projectile. The small angle 2a remarkably influenced the jet speed which was inversely proportional to 2a. And the liner thickness t＇ and large angle 2β had highly significant effect on the projectile speed. The liner was optimized at t＇ = 0. 14 cm, 2α = 50°, 2β = 135°, N = 0. 4 or 0. 5, when its jet speed respectively is at 6 613 m/s and 6 839 m/s and projectile speed is at 2 247 m/s and 2 095 m/s, steel target penetration is at 8. 24 cm and 8. 31 cm, and aperture is in 2.12 cm and 2.08 cm. The results show that target is penetrated by the high-speed jet and high-speed projectile resulting into double damages. The penetration ability is improved greatly.A biconical liner was optimized to improve its penetration ability. Its formation and pene- tration mechanism was studied through numerical simulation and experiments. And the influence of different liner geometry sizes on the jet performance was analyzed using the orthogonal method. The liner formed the high-speed jet with an explosively formed projectile. The small angle 2a remarkably influenced the jet speed which was inversely proportional to 2a. And the liner thickness t＇ and large angle 2β had highly significant effect on the projectile speed. The liner was optimized at t＇ = 0. 14 cm, 2α = 50°, 2β = 135°, N = 0. 4 or 0. 5, when its jet speed respectively is at 6 613 m/s and 6 839 m/s and projectile speed is at 2 247 m/s and 2 095 m/s, steel target penetration is at 8. 24 cm and 8. 31 cm, and aperture is in 2.12 cm and 2.08 cm. The results show that target is penetrated by the high-speed jet and high-speed projectile resulting into double damages. The penetration ability is improved greatly.

关 键 词：biconical liner orthogonal design numerical simulation JET explosively formed pro-jectile 

分 类 号：TJ410.2[兵器科学与技术—火炮、自动武器与弹药工程]