原子氧与飞行器表面撞击的束流强度和能量

原子氧是低地球轨道飞行器经受的重要环境因素。作用到不同姿态表面的原子氧的束流强度和能量不同。文章采用热力学统计物理方法,考虑了飞行器的运动和原子氧的热运动速度,建立了原子氧与飞行器表面作用的模型;对不同攻角的原子氧束流强度和作用能量进行了分析、计算;并与美国长期空间暴露试验装置实测的结果进行了比较;分析了产生差异的原因。

The BEAM INTENSITY AND ENERGY OF THE IMPACT OF ATOMIC OXYGEN WITH SPACECRAFT FACE

Atomic Oxygen is a kind of important environment factor of Low-earth-orbit spacecraft undergoing.It is different that Atomic Oxygen beam intensity and energy for acting on differential faces.This paper adopts thermodynamic statistical physics method,considers the velocities of spacecraft motion andAtomic Oxygen thermal motion,builds the acting mould of Atomic Oxygen and spacecraft face,analyzes and calculates Atomic Oxygen beam intensity and action energy for the differential attack-angle,and compares with the measured results of America long-term space exposition test device,and analyzes the resons of producing differences.