Research on integrated fault tree modeling of the certain missile double-buses tolerated-fault control system

The traditional static fault trees with AND, and OR gates can express the logic relation between events, but they cannot capture the dynamic behavior of complex system. Aim at this problem, this paper presents a kind of fault tree modeling method based on Integrated Fault Tree, that models with the idea of modularization. The whole tree is separated several absolute static trees and dynamic trees. Relatively, the modularization linearity-searching algorithm based on depth-first-left-most search is presented. The paper chooses the double buses tolerated-fault control system fault tree modeling of missile body explosive bolt. Lastly, the modularization algorithm is used to validate rationality of model.