侧向环形聚能切割器射流成型特性研究  

Jet formation characteristics of lateral annular shaped charge cutter

作　　者：曹涛[1] 顾文彬[1] 詹发民[2] 徐景林[1] 刘建青[1] CAO Tao GU Wenbin ZHAN Famin XU Jinglin LIUJlanqlng(College of Field Engineering, PLA University of Science ＆ Technology, Nanjing 210007, China Naval Vessel Academy, Qingdao 266042, China)

机构地区：[1]解放军理工大学野战工程学院,江苏南京210007 [2]海军潜艇学院,山东青岛266042

出　　处：《兵器材料科学与工程》2017年第2期81-86,共6页Ordnance Material Science and Engineering

基　　金：总后基建营房部重点课题(KYGYZXJK0914)

摘　　要：为获得侧向环形聚能切割器射流成型的特点和规律,运用LS-DYNA有限元软件模拟大口径侧向环形切割器两点对称起爆射流成型过程,借助综合性仿真平台Altair Hyper Works,揭示侧向环形射流3个方向速度和形态随切割器圆心角θ的变化规律。结果表明:侧向环形切割器内外侧微元质量不对称性和爆轰时间不同步性是环形射流偏斜和形态不稳定的主要原因;射流轴向速度、径向速度、切向速度随圆心角θ的变化呈不同的规律;随θ增大,射流扭曲变形越来越严重。将电脑仿真技术应用到模拟环形射流成型的高速复杂过程中,研究结果为环形切割器的优化设计提供重要依据。In order to study the characteristics and laws of lateral annular cutter＇s jet formation,the jet formation process of the large aperture lateral annular cutter with two initiation points was simulated by means of finite element software LS-DYNA. The changing rule of jet velocity and shape along the central angle θ was presented with the help of integrated simulation software Altair Hyper Works. Simulation results show that mass asymmetry and detonation non-synchronization of lateral annular cutter＇s micro-unit result in jet tilting and distortion. The axial,radical and tangential velocity of jet vary with central angle. The distortion degree of jet increases with θ increasing. Research provides reference for optimal design of lateral annular cutter by applying emulation technique to the simulation of high-speed and complicated process of annular jet formation.

关 键 词：环形切割器 射流成型 不对称性 偏斜 数值模拟 

分 类 号：TJ5[兵器科学与技术—军事化学与烟火技术]