Vibration Analysis of Large Bulb Tubular Pumping Station Considering Flow-Structure Interaction

Dynamic time-history analysis considering the interaction between the 3D unsteady turbulent flow and structure is proposed in this paper in the light of the deficiency of vibration research methods at present. FSI model considering the interaction of unsteady turbulent flow and structure for pumping station is built in the frame of FEM. Fluid equations and solid equations are dispersed with the finite element method. Sliding mesh technology is used to simulate the rotor-stator interference in the unit. A suitable interface condition in the interface of fluid and solid is used for the energy transition between fluid and solid. Then, FSI vibration analysis for single channel of the large bulb tubular pumping station is done to predict the dynamic responses of the flow and the structure, which will provide references for anti-vibration design of the pumping station.