A extended event trees based dynamic reliability analyzing method

System fault process can be cut off if failures can be fined in time after they occurred. But there must be enough time for failures can be detected. And the process time is longer; the higher probability fault process can be cut off. Failures considered in traditional event tree method are simplified as 0 or 1 (abnormal or normal) condition. But in dynamic reliability study, failures are not just considered as logic state of system. Failure parameters and subsequent failures would inference system course and its final condition. Extend event tree based dynamic reliability analysis method is studied in this paper. System dynamic characteristics after failures are considered in this method. And a simple system is analyzed in this paper. Analyzing results shown that, this method is effective in analyzing system dynamic reliability.