BIM+Simulation Calculation and Analysis of Flow-induced Vibration of Radial Gate Structure
The hydrodynamic properties and characteristics of the gate structure significantly influence stress distribution and defor-mation,as well as the impact of water on gate vibrations under different opening degrees.This study presented the BIM+simulation method for analyzing radial gates by using the surface orifice radial gate of a hydropower station as a case study.The building infor-mation modeling(BIM)technology was used to establish a three-dimensional model of the radial gate,which was then converted into a finite element model compatible with Ansys Workbench.This allowed for the analysis of the changes in the strength,stiffness and stability of radial gate at different opening degrees.The results indicated that the simulated outflow was less than 4％,with a maxi-mum stress value of 372.696 MPa.The stress concentration occured at the junctions between the lower main beam and the gate blade,and the overall gate structure met the design requirements.The maximum deformation value was 10.288 mm,which ap-peared in the lower part of the gate leaf.The results showed that the water volume had a significant effect on the natural vibrational frequency of the bent gate,with a maximum frequency reduction value of 57.1％.The research demonstrated that the BIM+simula-tion technology could effectively analyze flow-induced vibrations in radial gates,providing valuable insights for the calculation,anal-ysis and application of BIM technology in large hydraulic steel structures.
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维普
