Numerical Simulation of Atomic Oxygen Action on Spacecraft Surface Material
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摘要: 对低地球轨道环境对航天器表面材料的影响和航天器表面材料的低地球轨道环境寿命评定方法进行了介绍,并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冲蚀作用进行了成功的数值模拟,获得了具有工程应用价值的数值计算结果.该项工作对太空航天器的设计具有重要的指导意义.
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关键词:
- 氧原子 /
- 聚酰亚胺 /
- 数值模拟 /
- 低地球轨道环境 /
- 航天器表面材料寿命
Abstract: This paper introduced the influence of the LEO(Low Earth Orbit) environments to spacecraft surface material and the evaluating technology about the lifetime of the spacecraft surface material in LEO.This work numerically simulate the action of atomic oxygen on polyimide with or without coated layer both in LEO and ground experiment environments. The results compare very well with the LDEF results. As a result, the present work provides a good guideline to the design of spacecraft. -
1. Rutledge S K,Olle R M. Durability evaluation of photovoltic blanket materials exposed on LDEF tray S1003.In:the 1st LDEF Post-Retrieval Symposium. Kissimmee:[s.n.],1991 2. Banks B A,Auer B M,Rutledge S K, et al. The use of plasma ashers and Monte Carlo modeling for the projection of atomic oxygen durability of protected polymers in low earth orbit.NASA-N93-15596,1993 3. Banks B A,Rutledge S K,Gebauer L.SiOx coating for atomic oxygen protection of polyimide kapton in low earth orbit.AIAA-92-2151,1992 4. Banks B A,de Groh K K,Auer B M,et al. Monte Carlo modeling of atomic oxygen attack of ploymers with protective coating on LDEF.In:the 2nd LDEF Post-Retrieval Symposium.San Diego:[s.n.],1992 -
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