All Title Author
Keywords Abstract


弹丸超高速撞击铝靶成坑数值模拟

DOI: 10.11858/gywlxb.2006.01.001, PP. 1-5

Keywords: 航天器,空间碎片,超高速撞击,数值模拟

Full-Text   Cite this paper   Add to My Lib

Abstract:

低地球轨道的各类航天器易受到微流星体及空间碎片的超高速撞击,损伤航天器飞行关键系统,进而导致航天器发生灾难性的失效。微流星体及空间碎片防护结构设计,是航天器设计的一个重要问题。采用AUTODYN软件进行了弹丸超高速正撞击及斜撞击铝靶成坑的数值模拟,给出了二维及三维模拟结果。研究了弹丸密度、弹丸形状、板厚度、弹丸速度、弹丸直径和弹丸撞击入射角等对靶成坑的影响。模拟结果同实验结果进行了比较,模拟的成坑形状和特征尺寸同实验相吻合。验证了数值模拟方法的有效性。

References

[1]  Min G R, Xiao M X. Reliability Design of Spacecraft Module Wall against Meteoroid Perforation [J]. Chinese Space Science and Technology, 1986, (6): 45-48. (in Chinese)
[2]  闽桂荣, 肖名鑫. 防止微流星击穿航天器舱壁的可靠性设计 [J]. 中国空间科学技术, 1986, (6): 45-48.
[3]  Zhang W, Pang B J, Zou J X, et al. Meteoroid and Space Debris Shielding Concepts for Spacecraft [J]. Journal of Harbin Institute of Technology, 1999, 32(2): 18-22. (in Chinese)
[4]  张伟, 庞宝君, 邹经湘, 等. 航天器微流星体及空间碎片防护方案 [J]. 哈尔滨工业大学学报, 1999, 32(2): 18-22.
[5]  Christiansen E L. Enhanced Meteoroid and Orbital Debris Shielding [J]. Int J Impact Eng, 1995, 17: 217-228.
[6]  Gehring J W. Engineering Considerations [A]. //Kinslow R. High-Velocity Impact Phenomena [C]. New York: Academic Press, 1970: 463-512.
[7]  Hayashida K B, Robinson J H. Single Wall Penetration Equations [R]. NASA-CR 3190, 1983: 8-12.
[8]  Christiansen E L, Cykowski E, Ortega J. Highly Oblique Impact into Thick and Thin Targets [J]. Int J Impact Eng, 1993, 14: 157-168.
[9]  Hayhurst C J, Ranson H J, Gardner D J, et al. Modelling of Micro-Particle Hypervelocity Oblique Impacts on Thick Targets [J]. Int J Impact Eng, 1995, 17: 375-386.
[10]  AUTODYN Users Manual Revision 4. 3 [CP]. San Ramon, CA94583 USA: Century Dynamics, Incorporated, 2003.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

微信:OALib Journal