Abnormal vibration of Combined cycle due to separate rotating parts

회전부품의 탈락으로 발생한 복합화력 증기터빈의 이상 진동

At rotating machinery, Many factors had caused vibration. especially one of the major factor is mass unbalance. A sort of mass unbalance are followings; Static, Coupling, Single and Dynamic. In this paper, We had investigated abnormal vibration due to mass unbalance that changed phase whenever starting of steam Turbine at Combined Cycle.