原子氧和紫外线对聚酰亚胺综合作用数值模拟

高劭伦; 孙冰; 祝成民; 周定

原子氧和紫外线对聚酰亚胺综合作用数值模拟

1.
哈尔滨工业大学航天工程与力学系
2. 北京航空航天大学宇航学院
3. 哈尔滨工业大学环境科学与工程系

详细信息

作者简介:
高劭伦(1961-),男,辽宁盖州人,副教授,150001,哈尔滨.

中图分类号: V 411.8
计量
- 文章访问数: 2666
- HTML全文浏览量: 28
- PDF下载量: 393
- 被引次数: 0
出版历程
- 收稿日期: 2001-05-24
- 网络出版日期: 2002-02-28

Numerical Simulations of the Combined Effects of Atomic Oxygen and Ultraviolet on Polyimide

1.
Harbin Institute of Technology, Dept. of Aerospace Engineering and Mechanics
2. Beijing University of Aeronautics and Astronautics, School of Astronautics
3. Harbin Institute of Technology, Dept. of Environmental Science and Engineering

摘要

摘要: 在建立数学物理模型的基础上,对低地球轨道环境和地面试验环境下有无保护涂层的聚酰亚胺所受原子氧冲蚀及紫外线的综合作用进行了数值模拟,获得了具有工程应用价值的计算结果,并讨论了数学物理模型中各参数对基蚀曲线形状的影响.从数值模拟结果与美国太空试验结果的比较可以看出,得出的数值模拟的结果是正确的,对航天器设计具有重要的指导意义.
- 氧原子 /
- 紫外辐射 /
- 数值模拟 /
- 航天器 /
- 寿命 /
- 聚酰亚胺
Abstract: Based on a mathematical mode proposed by the authors to describe the physical interactions of atomic oxygen and ultraviolet with polyimide, numerical simulations of their combined radiation effects on polyimide with and without coated layers in Low Earth Orbit (LEO) and ground experiment environment were conducted. The results are consistent with the Long Duration Exposure Facility (LDEF) results, providing a valuable reference for the design of spacecrafts.
- oxygen atoms /
- ultraviolet radiation /
- numerical simulation /
- spacecraft /
- lifetimes /
- polyimide

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参考文献(1)

[1]Dever J A.Low earth orbital atomic oxygen and ultraviolet radiation effects on polymers. NASA TM 103711, 1991. [2]Clark L G,Kinard W H,Carter D J,et al.The long duration exposure facility. NASA SP-473, 1984. [3]Stein B A, Pippin H G. Preliminary findings of the LDEF materials special investigation group. NASA CP3134,1991.617~641. [4]Bourassa R J, Gillis J R. Atomic oxygen exposure of LDEF experiment trays. NASA CR 189627,1992. [5]高劭伦,贾阳,蔡国飙. 航天器表面材料的低地球轨道环境寿命评定技术[J]. 环模技术,1998,(1):50~53. [6]Banks B A,Rutedge S K,Brady J A,et al.Atomic oxygen effects on materials. NASA CP 3035, 1988. [7]高劭伦,周定,蔡国飙,等. 低地球轨道环境原子氧对航天器表面材料聚酰亚胺作用的数值模拟[J]. 宇航学报,1999,20(1):5~13.

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