Abstract
Due to the interdependent relationship and the serious impact of the failure propagation, assessing the reliability of a complex electromechanical system has been attracted a lot of attention. Due to this, we abstract a complex electromechanical system with the mechanical connection, the electrical connection and the information connection as an interdependent network composed of three kinds of networks. By carrying out the simulation on the urban rail transit train, attack strategies regarding the degree, the betweenness, and the random removal are compared. Additionally, we explore the effectiveness of attacking different networks. According to the simulation result, it is found that the failures of nodes in the mechanical network have a more serious impact on the reliability of the urban rail transit train. Moreover, less broken nodes in the electrical network and the information network do not significantly affect their corresponding networks. When the number of attacked nodes increases to a certain value, the reliability of electrical and information networks is reduced.
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