Small bore pipe is widely used in chemical plants,aerospace,nuclear power and other fields,mainly distributed in the end of complex pipeline system,connecting instrument,valves,flanges and so on.The fatigue failure of the small bore pipe will lead to the leakage of dangerous gas in the pipe,the device will stop,and the operation safety of the pressure pipeline system will be threatened.The cantilever structure of small bore pipe leads to the high proportion of abnormal vibration fatigue failure,so it is very important to analyze and solve the problem of vibration fatigue of small bore pipe.This paper synthesizes the research findings of scholars both domestic and international regarding the assessment of pipeline vibration fatigue,providing theoretical references for the prevention and management of vibration fatigue in small bore pipe.
Small bore pipeVibrationFatigue failureSafety evaluation