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1. 中国科学院大学 北京,中国,100049
2. 中国科学院 西安光学精密研究所,陕西 西安,710119
收稿日期:2014-01-20,
修回日期:2014-02-25,
纸质出版日期:2014-12-25
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上官爱红, 穆猷, 李治国等. 空间环境对MoS<sub>2</sub>固体润滑运动部件寿命的影响[J]. 光学精密工程, 2014,22(12): 3264-3271
SHANGGUAN Ai-hong, MU You, LI Zhi-guo etc. Effect of space environment on working life of solid-lubricated rotating parts[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3264-3271
上官爱红, 穆猷, 李治国等. 空间环境对MoS<sub>2</sub>固体润滑运动部件寿命的影响[J]. 光学精密工程, 2014,22(12): 3264-3271 DOI: 10.3788/OPE.20142212.3264.
SHANGGUAN Ai-hong, MU You, LI Zhi-guo etc. Effect of space environment on working life of solid-lubricated rotating parts[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3264-3271 DOI: 10.3788/OPE.20142212.3264.
为了获得空间环境对MoS
2
固体润滑运动部件寿命的影响情况并预测运动部件在轨寿命
分析了空间环境对固体润滑膜层的影响.分析显示:影响空间运动机构寿命主要有三大因素
分别为:航天发射环境、真空度和温度交变.设计了某空间运动部件的寿命试验
试验模拟了影响空间运动机构的三个重要因素:采用力学试验模拟航天发射环境
热真空寿命试验模拟真空度和温度交变条件.采用X射线能量分散谱仪(EDS)对试验中运动部件的轴承未磨损滚道、磨损滚道表面膜层成分和滚珠表面材料进行了分析
结果显示试验中未形成转移膜.根据试验结果预测试验中的MoS
2
固体润滑运动部件在轨寿命至少为10
7
次以上.最后根据影响运动部件寿命的因素
提出了增加空间运动部件工作可靠性
提高工作寿命的相关措施.
To explore the effect of space environment on the working life of solid-lubricated rotating parts and forecast their working life in orbit
the influence of space environment on solid-lubricated films was analyzed. The analysis points out that three main factors are relative to the working life of the space rotating parts
which are space launch environment
vacuum degree and alternating temperature. A life test was designed to simulate the three factors
in which the mechanical test was used to simulate space launch environment
and the thermal vacuum test was taken to simulate the vacuum and alternating temperature. The X-ray Energy Dispersive Spectrometer (EDS)was used to analyze the film composition of the unworn race and the worn race for a bearing in the solid-lubricated rotating part as well as ball surface materials.The analysis results show that the transfer film has not formed. On the result
it forecasts that the working life of the solid-lubricated rotating part in the test would be up to 10
7
times. Finally
it gives some necessary suggests that should been taken to increase the reliability and improve the work life of space rotating parts.
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李新立,刘志全,遇今. 航天器机构固体润滑球轴承的加速寿命试验方法[J]. 航天器工程,2008,17(5):82-86. LI X L,LIU Z Q,YU J. Method of accelerated life test for solid-lubricated ball bearings of spacecraft mechanisms[J].Space Engineering,2008,17(5):82-86.(in Chinese)
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