Abstract: Using the software ANSYS, the static and selfvibration characteristics of the Ushaped gate and the corresponding plate gate structure under different operation conditions were analyzed and calculated. The differences of the two structures in stress, displacement and selfvibration characteristics were compared. The study result offers technical basis for perfecting the design of the Ushaped gate and provides reference for the design and calculation of similar gate structures.

Key words: U-shaped gate, static and dynamic characteristics, finite-element analysis, software ANSYS