基于PRA的复杂航天多阶段任务系统可靠性分析

doi:10.3969/j.issn.1001-506X.2019.09.30

Systems Engineering and Electronics ›› 2019, Vol. 41 ›› Issue (9): 2141-2147.doi: 10.3969/j.issn.1001-506X.2019.09.30

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PRA based reliability analysis of complex space phased-mission system

LI Xiaopeng^1,2, HUANG Hongzhong¹, LI Fuqiu²

1. School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; 2. China Academy of Aerospace Standardization and Product Assurance, Beijing 100071, China

Online:2019-08-27 Published:2019-08-20

Abstract

Abstract:

Based on the analysis of the characteristics and the main problems of reliability analysis technologies in the space phased-mission system, the probabilistic risk assessment (PRA) technology is briefly introduced. The integrated modeling, analysis and evaluation, and result analysis processes of PRA are described in detail.Taking the moving subsystem of a lunar probe as an example, the engineering application of PRA technology is carried out. The application results show that the PRA technology has good engineering applicability. The reliability analysis results of the mission can be obtained at the same time, and the weaknesses of the system reliability can be determined by the ranking of risk importance, which can support the engineering design improvement.

Key words: probabilistic risk assessment (PRA), space phased-mission system, reliability analysis, synthetical modeling, uncertainty analysis

LI Xiaopeng, HUANG Hongzhong, LI Fuqiu. PRA based reliability analysis of complex space phased-mission system[J]. Systems Engineering and Electronics, 2019, 41(9): 2141-2147.

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PRA based reliability analysis of complex space phased-mission system

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