The research of seismic response analysis of CARR reactor complex

CARR reactor complex includes core vessel, heavy water tank, flow guiding tank, decay tank and reactor pool, etc. There is a lot of light water and heavy water in the complex. A fluid-structure interaction must be simulated in the seismic analysis. The reactor complex is simplified a 3D fluid-solid coupled model which includes fluid elements and solid elements. A modal analysis is performed for the 3D fluid-solid coupled model and obtains natural frequencies and mode shapes under fluid-structure interaction. On the base an equivalent fluid-solid coupled model is built and performed for seismic response analysis. (authors)