板间距对铝板多冲击结构高速撞击防护性能影响的试验研究

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摘要为了研究板间距变化对铝板多冲击结构高速撞击损伤与防护特性的影响，采用二级轻气炮发射铝球弹丸对具有不同板间距的双层、三层、四层和五层铝板结构进行了高速撞击试验，弹丸直径分别为3.97 mm、5 mm和6.35 mm，撞击速度为1.72~4.88 km/s，撞击角度为0°。结果表明：在铝球弹丸的弹道段撞击速度区间，板间距变化对铝板多冲击结构的高速撞击防护性能无显著影响；在铝球弹丸的破碎段撞击速度区间，对于相同的总防护间距，具有不同板间距的铝板多冲击结构的高速撞击防护性能存在明显差异；基于该试验数据定义的三层、四层和五层铝板结构的板间距因子，可为具有高效抗高速撞击能力的铝板多冲击结构的板间距设计提供依据。

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	管公顺
	刘启超
	韩潇风

关键词 ：多冲击结构, 间距, 高速撞击, 损伤, 防护性能

Abstract：In order to study effects of spacing between plates on protective performance of an aluminum plate multi-shock shield impacted by high-velocity projectiles, a two-stage light gas gun was used to launch 2017-T4 Al-sphere projectiles impacting on double-layer, three-one, four-one and five-one aluminum plate shields with different spacing, respectively.Diameters of projectiles were 3.97 mm, 5 mm and 6.35 mm, respectively.Impact velocities of Al-sphere projectiles were 1.72~4.88 km/s.The impact angle was 0°.The results indicated that within the impact velocity range of projectile’s ballistic section, effects of spacing between plates on protective performance of multi-shock shields are not significant; within the impact velocity range of projectile’s broken section, for the same total protection spacing, protective performances of aluminum plate multi-shock shields with different spacing have obviously different; spacing factors of three-layer, four-one and five-one aluminum plate shields defined based on test data here can provide a basis for design of spacing between plates of aluminum plate multi- shock shields with highly effective anti-high velocity impact ability.

Key words： multi-shock shield spacing high-velocity impact damage protective performance

收稿日期: 2018-06-04 出版日期: 2020-01-28

引用本文:

管公顺，刘启超，韩潇风. 板间距对铝板多冲击结构高速撞击防护性能影响的试验研究[J]. 振动与冲击, 2020, 39(3): 269-275.
GUAN Gongshun, LIU Qichao, HAN Xiaofeng. Tests for effects of spacing between plates on protective performance of an aluminum plate multi-shock shield impacted by high-velocity projectiles. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(3): 269-275.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I3/269

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