摘要
为提供验证超高速撞击数值仿真所需的试验结果,给出了在中国空气动力研究与发展中心超高速所进行的铝质Whipple屏超高速撞击试验部分结果.试验中,球形弹丸均为LY12铝合金材料,直径为0.4～0.5cm;靶材为间距10cm、厚0.192cm的LY12板材.撞击速度为4.47～6.15km/s,撞击角为0°和45°.给出的试验结果包括弹丸和靶材参数、撞击速度、撞击角、弹孔尺寸、后墙损伤情况和碎片云激光阴影照片等.实验结果表明,撞击速度越高,Whipple屏的防护效果越好,而斜撞击比正向撞击造成的破坏更严重.
Some of the Whipple shield hypervelocity impact results, which were obtained at Hypervelocity Aerodynamics Institute （HAI）, China Aerodynamics R ＆ D Center （CARDC）, are provided in this paper, as bench mark test results for the validation of various numerical simulation software. In the tests, spherical aluminum projectiles with diameters of 0.4-0.5cm, impact the aluminum Whipple shield which is about 10cm from the rear wall. Impact velocities range from 4.47 to 6.15km/s, with impact angles of 0 and 45 degree, respectively. The test results include the parameters of projectiles and targets （ i.e. shields）, impact velocities, impact angles, hole sizes, damage to the rear wall, and the laser shadowgraphs of debris clouds. The results of the tests showed that the higher the impact speed is, the more effective Whipple shield is, and the more damageable an oblique impact is than a vertical one.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2005年第4期505-508,共4页
Journal of Astronautics
关键词
弹道靶
防护屏
超高速碰撞
碎片云
Ballistic range
Whipple shield
Hypervelocity impact
Debris cloud
