Fault Tree Analysis on Reliability of Mirror Defrosting System of Antarctica Astronomical Telescope

Feng Qingchen; Li Xiaoyan

Astronomical Research and Technology > 2018 > 15(1): 111-118.

Feng Qingchen, Li Xiaoyan. Fault Tree Analysis on Reliability of Mirror Defrosting System of Antarctica Astronomical Telescope[J]. Astronomical Research and Technology, 2018, 15(1): 111-118.

Citation:

Feng Qingchen, Li Xiaoyan. Fault Tree Analysis on Reliability of Mirror Defrosting System of Antarctica Astronomical Telescope[J]. Astronomical Research and Technology, 2018, 15(1): 111-118.

Citation:

Feng Qingchen, Li Xiaoyan. Fault Tree Analysis on Reliability of Mirror Defrosting System of Antarctica Astronomical Telescope[J]. Astronomical Research and Technology, 2018, 15(1): 111-118.

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Fault Tree Analysis on Reliability of Mirror Defrosting System of Antarctica Astronomical Telescope

Feng Qingchen^1,2,3,
Li Xiaoyan^1,2, ,

1. National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China;
2. Key Laboratory of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China

More Information

Received Date: March 27, 2017
Revised Date: June 13, 2017
Available Online: November 20, 2023

Graphical Abstract

Abstract

Abstract

In Antarctic optical telescope operating in Dome A, Antarctic, some mirrors are exposed to harsh environment when the telescope is observing. Frost snow and ice on the surface of the mirrors degrade the transmission and reflection of the optical system. Telescope mirror defrosting system is aimed to settle this problem. In this paper, a fault tree of the mirror defrosting system based on FTA (Fault Tree Analysis) is established to make sure the system works reliably. After qualitative and quantitative analysis of the fault tree, a minimal cut set of the system is obtained and the structure importance ranking of the basic events causing the fault appears. The analysis results show clearly the bottle neck of the system and point out the way to improve the reliability of the system theoretically.
- Defrosting system,
- Fault tree analysis,
- Reliability analysis,
- Antarctica astronomical telescope

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References (9)

References

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