改进的Whipple防护结构与相关数值模拟方法研究进展

陈莹; 陈小伟

doi:10.11883/bzycj-2020-0289

改进的Whipple防护结构与相关数值模拟方法研究进展

doi: 10.11883/bzycj-2020-0289

陈莹^1,,
陈小伟^{2, 3, ,}

1.
北京理工大学机电学院，北京 100081
2.
北京理工大学爆炸科学与技术国家重点实验室，北京 100081
3.
北京理工大学前沿交叉科学研究院，北京 100081

基金项目: 国家自然科学基金（11627901，11872118）

详细信息

作者简介:
陈　莹（1996－　），女，博士研究生，604544512@qq.com

通讯作者:
陈小伟（1967－　），男，博士，教授，chenxiaoweintu@bit.edu.cn

中图分类号: O385
计量
- 文章访问数: 875
- HTML全文浏览量: 460
- PDF下载量: 190
- 被引次数: 0
出版历程
- 收稿日期: 2020-08-24
- 修回日期: 2020-09-03
- 网络出版日期: 2021-02-02
- 刊出日期: 2021-02-05

A review on the improved Whipple shield and related numerical simulations

CHEN Ying^1
,,
CHEN Xiaowei^{2, 3
, ,}

1.
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
3.
Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 基于弹丸在超高速撞击薄板时破碎形成碎片云的机理，Whipple防护结构能够对航天器所面临的空间碎片及微流星体等威胁形成有效防护。通过回顾Whipple防护结构的研究和发展历程，对多层板结构、填充式防护结构、夹芯板结构等进行对比，分析其力学效应和防护性能；总结可应用于含泡沫、蜂窝、梯度和编织等材料的防护结构超高速撞击的数值模拟方法及其改进方法；结合相关材料的超高速撞击试验及数值模拟结果，为防护结构未来的研究方向提出建议。
- 超高速碰撞 /
- Whipple防护结构 /
- 碎片云 /
- 多层板结构 /
- 填充/夹芯板结构 /
- FEM-SPH自适应耦合算法
Abstract: Based on the formation mechanism of the debris cloud caused by the projectile hypervelocity impacting onto a thin plate, the Whipple shield can effectively protect the spacecraft from space debris and micrometeoroid. By reviewing the research and development of the Whipple shield, and compares the mechanical effects and protective performance of multilayer, stuffed and sandwich shield. The paper also summarizes the application of numerical simulation methods and their improvement for the hypervelocity impact of protective structures containing materials such as foam and honeycomb, etc. By addressing the results of hypervelocity impact tests and numerical simulations of relevant materials, suggestions are made for the future research of the Whipple shield.
- hypervelocity impact /
- Whipple shield /
- debris cloud /
- multilayer shield /
- stuffed/sandwich shield /
- FEM-SPH adaptive method

HTML全文

图 1 Whipple防护结构^[5]

Figure 1. Whipple shield^[5]

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图 2 碎片云结构（球形弹丸）^[6]

Figure 2. Debris cloud structure (spherical projectile)^[6]

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图 3 Multi-shock (MS)防护结构^[10]

Figure 3. Multi-shock shield^[10]

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图 4 Mesh double-bumper（MDB）防护结构^[10]

Figure 4. Mesh double-bumper shield^[10]

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图 5 填充式防护结构^[14]

Figure 5. Stuffed Whipple shield^[14]

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图 6 填充式泡沫铝防护结构^[30]

Figure 6. Al-form stuffed Whipple shield^[30]

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图 7 填充式泡沫铝防护结构与传统Whipple防护结构的弹道极限曲线^[33]

Figure 7. Ballistic limit curves of Al-form stuffed Whipple shield and Whipple shield^[33]

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图 8 弹丸高速撞击蜂窝铝夹芯板的破碎过程^[41]

Figure 8. Simulation of hypervelocity impacts on honeycomb sandwich structure^[41]

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图 9 不同入射角度蜂窝铝夹芯板防护结构的弹道极限曲线^[39]

Figure 9. Projectile critical perforation diameter as a function of impact velocity against the same honeycomb panel^[39]

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图 10 泡沫铝夹芯板防护结构示意图^[32]

Figure 10. Schematic configuration of Al-foam sandwiched shield^[32]

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图 11 开孔泡沫夹芯板和蜂窝夹芯板损伤对比^[50]

Figure 11. Comparison of damages in open-cell foam core and honeycomb core sandwiches^[50]

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图 12 等质量的不同Whipple防护结构弹道极限曲线对比^[48]

Figure 12. Comparison of ballistic limit curves for comparable weight/standoff Whipple shield types^[48]

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图 13 开孔泡沫孔隙与泡沫孔大小和不同孔隙率的孔隙形状示意图^[48]

Figure 13. Open cell foam pore and cell size and ligament cross section variation with relative density^[48]

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图 14 双层蜂窝结构(DL-H) 和双层泡沫结构(DL-F) ^[16]

Figure 14. Schematic of the double-layer honeycomb target and the double-layer foam target ^[16]

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图 15 350 μs时SPH和FER方法碎片的比较^[95]

Figure 15. Comparison of debris cloud results between SPH and FER at 350 μs^[95]

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图 16 5种不同冲击速度下球形弹体的损伤对比^[111]

Figure 16. Damage in aluminum spheres due to impact with aluminum bumpers at five different velocities^[111]

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图 17 自适应耦合算法所得碎片云形态^[119]

Figure 17. The debris cloud of FEM-SPH adaptive method^[119]

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图 18 泡沫材料试件与Voronoi泡沫模型对比^[135]

Figure 18. Comparison of the Al-foam with the Voronoi tessellation model^[135]

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图 19 泡沫结构生成算法示意图^[138]

Figure 19. Schematic illustration of the algorithm for foam structure generation^[138]

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图 20 相邻两个孔间胞壁厚度示意图^[139]

Figure 20. Schematic diagram of the cell-wall thickness between the two adjacent pores^[139]

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图 21 闭孔金属泡沫的有限元单元^[139]

Figure 21. Finite element grid of closed-cell metallic foams^[139]

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图 22 有限元模型不同截面和CT扫描得到的灰度图像对比^[152]

Figure 22. Comparison of different section and gray images of finite element model^[152]

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