摘要
以惠普尔( Whipple) 防护屏结构为例, 通过实验研究了铝合金柱状弹体以第一门槛值附近速度斜撞击 L Y12合金防护屏的特点;研究了不同速度下、不同撞击角度下, 防护屏损伤的变化规律;对于速度在第一门槛值附近的斜撞击, 得到斜撞击存在一个临界入射角度。当入射角度大于临界入射角度时, 发生滑弹现象; 入射角度越大, 产生的滑弹碎片数量就越多。
In this paper, characteristics of the oblique im pactofcylindricalprojectileonto L Y12 alum inum Whipple shielding Conceptw ithin the firstdoorsillvalue are studiedw ith an exam ple of Whipple shield structure through experim ental investigation. So, Shielding Concept dam age behaviors w ith projectile velocity and different im pact angle ofincidence are presented. There exists a criticalangle ofincidence w ithin the first doorsillvalue ofoblique im pact. In the condition ofangle ofincidence m ore than thatofthe criticalangle, projectile ricochet debris clouds are. Oblique im pacthas the characteristic thatcanbreak up energy. It is the advantage of the shield structure.
出处
《中国空间科学技术》
EI
CSCD
北大核心
1999年第4期55-59,共5页
Chinese Space Science and Technology