射流侵彻运动薄板扩孔规律研究  

Study on the crating model of the shaped charge jet impacting moving thin plate

作　　者：刘宏伟[1] 赵国志[1] 张伟[2] 夏松林[2] 

机构地区：[1]南京理工大学机械学院,江苏南京210094 [2]徐州空军学院,江苏徐州221000

出　　处：《兵器材料科学与工程》2007年第5期29-32,共4页Ordnance Material Science and Engineering

摘　　要：反应装甲干扰射流过程实际上就是射流与运动薄板相互作用过程。根据射流侵彻薄板的主特点,应用Szendrei公式,得到了射流侵彻静止薄板扩孔规律,并在该模型基础上,推导在高速射流作用下运动飞板孔径随时间的变化规律,与数值计算结果一致。The jet disturbing mechanism of ERA is simply the interaction between the thin moving plate and the shaped charge jet . Analyzed on the interaction between the shaped charge jet and ERA, followed the theory of fluid theory, it can be concluded that the material static press is an important factor to the crate rule of jet against thin plate. Based on the Szendrei crating on static plate and the formula of static press, the formula for an expanding hole on thin moving plate due to the jet is derived. Using LS-Dyna,simulation data show good agreement with the theoretical mode.

关 键 词：反应装甲 射流 运动板扩孔模型 静压 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]