| 引用本文: | 邓云飞,张伟,贾斌,胡静,陈聪.靶体材料叠层顺序对抗卵形头弹冲击性能影响[J].哈尔滨工业大学学报,2017,49(10):132.DOI:10.11918/j.issn.0367-6234.201604021 |
| DENG Yunfei,ZHANG Wei,JIA Bin,HU Jing,CHEN Cong.The effect of material layering order on the ballistic performances of targets against the impact of ogival-nosed projectiles[J].Journal of Harbin Institute of Technology,2017,49(10):132.DOI:10.11918/j.issn.0367-6234.201604021 |
|
| 摘要: |
| 为研究靶体材料及结构对其抗撞击特性的影响，利用一级轻气炮系统进行卵形头弹正撞击靶体试验.通过改变靶体材料及结构，分析靶体在不同撞击条件下的弹道极限及失效模式.靶体包括单层靶、相同材料板组成的等厚双层靶，以及不同材料板组成的等厚双层靶，靶体总厚度相等.利用高速摄像机获取弹体撞击速度数据和弹道姿态图像，基于实验数据建立各种结构靶体的初始-剩余速度曲线，进而计算获取靶体的弹道极限速度.通过分析靶体的弹道极限及面密度，从抗撞击效率方面揭示靶板的叠层顺序对其抗撞击性能的影响规律及机理.试验结果表明：单层靶板的抗撞击性能高于等厚度的双层靶板；靶板的叠层顺序对混合双层靶抗撞击性能存在影响，硬板在前软板在后排列能够提高靶体的抗撞击性能，并且这种差异随弹体初始速度的增加而减小.此外，铝合金靶体单位质量的抗撞击效率高于钢靶体.
|
| 关键词: 撞击 弹体 靶体 弹道极限 叠层顺序 |
| DOI：10.11918/j.issn.0367-6234.201604021 |
| 分类号:O347；O385 |
| 文献标识码:A |
| 基金项目:国家自然科学基金 (11072072); 中央高校基本科研业务费资助(3122016C001) |
|
| The effect of material layering order on the ballistic performances of targets against the impact of ogival-nosed projectiles |
|
DENG Yunfei1,2,ZHANG Wei2,JIA Bin2,HU Jing1,CHEN Cong1
|
|
(1.College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China; 2.School of Astronautics, Harbin Institute of Technology, Harbin 150080, China )
|
| Abstract: |
| The plates are normally impacted by ogival-nosed projectiles on a one stage-gas gun to investigate the influence of material and configuration on the ballistic resistance of target. By changing the material and configuration of target, the ballistic limit and failure modes of the target under various impact conditions are analyzed. All the targets, including monolithic plates, double-layer plates with the same materials and double-layer plates with different materials, are of equal thickness. The velocity data and ballistic attitude image of projectile are acquired by high-speed camera, the residual velocity versus initial velocity curves and ballistic limit velocities of the projectiles are obtained based on experimental data. By analyzing the ballistic limit and surface density of target, the influence of layering order of target on its impact resistance is revealed from the impact efficiency. The experimental results indicate that the monolithic plates have a better ballistic performance than the double-layer plates with the same materials. The layering order affects the ballistic resistance of the double-plates with different materials, the configuration for anti-impact perfarmance is the upper layer of harder material and the lower layer of softer material, and also the layering order of plate on the ballistic resistance decreases with the increase of initial velocity of projectile. Moreover, it reveals that the ballistic resistance of aluminum alloy target is higher than that of steel target under the similar areal density.
|
| Key words: impact projectile target ballistic limit layer order |
