摘要
根据聚能装药射流形成和断裂原理,使用autodyn2d对线型聚能切割器侵彻靶板的物理过程进行了数值仿真。针对不同炸高的4组模型,详细讨论了炸高对射流侵彻能力的影响。研究结果表明:小炸高下,影响射流侵彻能力的主要因素是靶板阻碍了药型罩后部的压垮;大炸高下,射流与靶板的作用存在着二次侵彻的现象,具体侵彻效果与炸高有关。从工程目的出发,可以选取射流头部第2次断裂时所处的位置为有利炸高。
According to theory of jet＇s formation and stretch, the physics process of jet penetrating steel plane is studied using hydro code-autodyn2d. Four models are used to study the effects of different height of burst on the penetration ability of LSCC. Results indicated that when burst height is very low, the reason of making penetration depth little is that steel plane blocks jet＇s formation. When burst height is very high, second penetration exists, and the penetration effect is related to height of burst. For engineer aim, the location where jet began its second rupture can be used as a profitable height of burst.
出处
《火工品》
CAS
CSCD
北大核心
2008年第4期28-32,共5页
Initiators & Pyrotechnics
关键词
线型聚能切割器
炸高
切割深度
有利炸高
Linear shaped charge cutter
Burst height
Penetration depth
Profitable burst height
