유체와 구조물이 조합된 대형 수직펌프의 동특성 개선

Modal Analysis In The Dynamic Behavior Identification of the fluid-structure coupled Vertical Pump

The paper presents the possibilities of a wide practical application of the modal analysis methods in dynamic testing of vertical pump. A pneumatic impact of testing vertical pumps submerged under deep water was developed and successfully applied. The problem with the enviroment is the it causes significants changes in modal parameters, compared with those in the airenviroment.