Abstract: The static and dynamic characteristics of the tail water emergency gate structure of a pumped storage power station were researched numerically by use of the software ANSYS. The fixed wheel reacting force under two connection forms of the two gate sections, the stress and the displacement of various parts of the gate, the buckling stability and the frequency and type of the gate natural vibration were calculated and analyzed. The results of this paper provide technical basis for selecting the final design scheme of the gate structure, which can be used as reference for design and calculation of the similar gate structure.

Key words: gate structure, static and dynamic characteristics, finite element method, software ANSYS