압유배관의 절손 원인 규명과 과도진동

Failure of Hydraulic Oil Pipe and Transient Vibration

This paper presents a case history of piping failures on power plant. The root cause of the failure was defined to set the optimal countermeasures. The failure comes from transient vibration and the 1st stress increased at the hydraulic oil supply system of control valves for high pressure steam turbine.