Research on the Dynamic Model of 2.5D Fluid-Structure Interaction of Gravity Dam and Simulation of Seismic Displacement Response

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Yiran, L.I.^1,2 ; Menghua, X.U.^2 ; Hao, S.U.N.^2 ; Genfeng, Xiao^2

Hunan Province Key Laboratory of Key Technologies for Water Power Resources Development, Changsha, Hunan

410000, China^1

Institute of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong

510640, China^2

关键词: Accurate calculations;    Concrete gravity dams;    Displacement response;    Dynamic fluid structure interactions;    Numerical experiments;    Numerical solution method;    Theoretical modeling;    Three-dimensional model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/5/052019/pdf
DOI  :  10.1088/1755-1315/153/5/052019

来源: IOP

【 摘 要 】

The seismic safety of the dam involves the safety of people's life and property, and even affects the overall safety of the national economy. One of the key of technical issues in this subject is the more complete fluid-structure interaction(fsi) theory and the more accurate calculation method. In order to solve the problem of dynamic fluid-structure interaction in gravity dam, a 2.5d semi-dynamic theoretical model and a numerical solution method are established by using fluid slice method. The numerical experiment of seismic displacement response is compared with three-dimensional model. The results show that the displacement response of the 2.5d semi-dynamic model of gravity dam can well reflect the fluid- structure interaction behavior and effect of seismic gravity of concrete gravity dam.