引用本文: | 邢柏阳,郭锐,侯云辉,等.爆炸成型弹丸贯穿靶板靶后破片空间分布模型[J].国防科技大学学报,2022,44(4):141-150.[点击复制] |
XING Boyang,GUO Rui,HOU Yunhui,et al.Spatial distribution model for behind-armor debris formed by the perforation of explosively formed projectile through target[J].Journal of National University of Defense Technology,2022,44(4):141-150[点击复制] |
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爆炸成型弹丸贯穿靶板靶后破片空间分布模型 |
邢柏阳1,郭锐2,侯云辉3,骆强3,张东江3,杨赵兵1,徐伟华1,朱桂利1,崔浩2 |
(1. 中国航天科技集团有限公司 第七研究院 第七设计部, 四川 成都 610100;2. 南京理工大学 机械工程学院, 江苏 南京 210094;3. 西安现代控制技术研究所, 陕西 西安 710065)
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摘要: |
深空撞击载荷对探测小天体内部物质成分和结构特性具有重要意义,因此,在考虑爆炸成型弹丸(explosively formed projectile, EFP)可变截面的特性和区分靶后破片来源的基础上,建立了EFP贯穿靶板靶后破片空间分布模型。在靶板厚度30 mm至70 mm、EFP着靶速度1 650 m/s至1 860 m/s的条件下,该模型可以定量预测靶后破片云中各个破片的速度、质量、数量与空间位置的关系。结果表明,相对速度总是随相对空间位置的增加而呈线性增加,相对质量、相对数量总是随相对空间位置的增加而呈幂函数增加。 |
关键词: 空间分布 爆炸成型弹丸 靶后破片 动能分布 |
DOI:10.11887/j.cn.202204015 |
投稿日期:2020-11-10 |
基金项目:国家自然科学基金面上基金资助项目(11972197,21875109);江苏省研究生科研与实践创新计划资助项目(KYCX19_0331) |
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Spatial distribution model for behind-armor debris formed by the perforation of explosively formed projectile through target |
XING Boyang1, GUO Rui2, HOU Yunhui3, LUO Qiang3, ZHANG Dongjiang3, YANG Zhaobing1, XU Weihua1, ZHU Guili1, CUI Hao2 |
(1. The Seventh Design Department, The Seventh Research Institute, China Aerospace Science and Technology Corporation, Chengdu 610100, China;2. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;3. Xi′an Modern Control Technology Research Institute, Xi′an 710065, China)
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Abstract: |
The deep space impact load is of great significance to the detection of the internal material composition and structural characteristics of small celestial bodies. Therefore, based on considering the characteristics of the variable section of EFP (explosively formed projectile) and the differentiation of the BAD (behind-armor debris),a spatial distribution model for BAD formed by the perforation of variable cross-section EFP through the target was established. Under the condition that the target thickness is 30 mm to 70 mm and the EFP speed is 1 650 m/s to 1 860 m/s, the model can quantitatively predict the relationship between the velocity, mass, quantity and spatial position of each debris in the BAD cloud.The results indicate that the relative velocity increases by a linear function with the increase of the relative spatial position, the relative mass and the relative number increase by a power function with the increase of the relative spatial position. |
Keywords: spatial distribution explosively formed projectile behind-armor debris kinetic energy distribution |
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