Fault Tree Analysis of the Space Cable-strut Deployable Articulated Mast

Combined the application environment of the space cable-strut deployable articulated mast, the fault tree of the deployable mast is established by considering the deploying failure of the mast as the top event based on the analysis of its composition and deployment mechanism, whose quantitative and qualitative analysis is finished for the fault tree of the deployable mast. And then the results of the probability of failure, important degree of probability and criticality are obtained and the main factors leading to the deploying failure of the mast are found out. The results show that the accurate deploying of the mast is influenced by lack of driving force, jamming on its roller card of the corner wheel and precision failure, which provides the foundation for the deploying reliability analysis of the space cable-strut deployable articulated mast