Reliability and Safety Assessment for Human Involved Complex Spaceflight Tasks
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Recently, with the world-wide enthusiasm for exploring outer space and the development of astronautics technologies, Spaceflight tasks become more complicated. Human, system and environments exchanging information during the Human Involved Complex Spaceflight Tasks (HICSTs), makes comprehensive analysis of safety and reliability a critical problem to solve. We have to determine the safety and reliability of HICSTs before the tasks are implemented. This paper analyzes factors which influence the safety and reliability of HICSTs, and study the interdependent relation among human, system and environments. Then we make further study on safety and reliability modeling and assessment methodologies and provide a systematic method to assess the reliability and safety for the HICSTs. Finally, we choose a typical HICST to explain how to model and evaluate the reliability and safety of a HICST. The results show that the method proposed in this paper is effective. The further study and development trends of this are also outlined.
KeywordsHuman factors Human Involved Complex Spaceflight Tasks Reliability Safety
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