• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2015, Vol. 51 ›› Issue (3): 66-72.doi: 10.3901/JME.2015.03.066

• 机械动力学 • 上一篇    下一篇

不同环境温度下铝球弹丸高速撞击编织物防护屏试验研究

管公顺, 蒲东东, 哈跃, 庞宝君   

  1. 哈尔滨工业大学航天学院
  • 出版日期:2015-02-05 发布日期:2015-02-05
  • 基金资助:
    国家自然科学基金(11172083)和微小型航天器技术国防重点学科实验室开放基金(HIT.KLOF.MST.2012008)资助项目

Experimental Investigation of Woven Bumper Shield Impacted by a High-velocity Aluminum Sphere at Different Ambient Temperature

GUAN Gongshun, PU Dongdong, HA Yue, PANG Baojun   

  1. School of Astronautics, Harbin Institute of Technology
  • Online:2015-02-05 Published:2015-02-05

摘要: 利用二级轻气炮发射2017铝球弹丸,在两种环境温度下高速撞击编织物单防护屏结构和填充式结构,研究环境温度对铝网、玄武岩纤维布、Kevlar纤维布防护结构高速撞击损伤与防护特性的影响。用于模拟空间碎片的铝球弹丸直径为3.97 mm,撞击速度为1.47~4.47 km/s,撞击角度为0°,环境温度分别为293 K和393 K。结果表明:当撞击条件相同时,在较高环境温度中,单防护屏结构的编织物防护屏及填充式结构的编织物填充层的撞击穿孔尺寸均增大,三种编织物单防护屏结构的高速撞击防护能力下降,铝网及玄武岩纤维布填充式结构的高速撞击防护性能降低,Kevlar纤维布填充式结构的高速撞击防护性能提高。

关键词: 编织物防护屏, 空间碎片, 损伤, 温度, 高速撞击

Abstract: A two-stage light gas gun is used to launch 2017-T4 Al-sphere projectiles impacting on single-wall bumper shield and stuffed bumper shield of woven at two kinds of ambient temperature. The effect of ambient temperature on damage and protection characteristic of Al-mesh, Basalt fiber cloth and Kevlar fiber cloth bumpers are studied. The diameter of projectile used to simulate space debris is 3.97 mm. Impact velocities of Al-spheres are varied between 1.47 km/s and 4.47 km/s. The impact angle is 0°. Ambient temperatures are 293 K and 393 K respectively. The results indicated that perforation size of woven bumper of single-wall bumper shield and woven stuffed wall of stuffed bumper shield increased at higher ambient temperature for the same impact condition. At the same time, the protection performance of all single-wall bumper shields of three woven bumpers degraded along with the rising of the ambient temperature, the protection performance of Al-mesh, Basalt fiber cloth stuffed bumper shields degraded and the protection performance of Kevlar fiber cloth stuffed bumper shield enhanced at higher ambient temperature.

Key words: damage, space debris, temperature, woven bumper, high-velocity impact

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