Dynamic analysis of SMART steam generator cassette

Integral reactor SMART has hanging twelve steam generator cassettes on its inside wall of the reactor vessel. It is important for designing of main components of reactor structure to secure structural safety against all sorts of load. Using FE model and macroscopic dynamics, the structural safety of SG cassette are studied in the basic design stage of SMART. In this study, very simple FE model is developed through three steps, and the final model gives very useful analysis results. Although the final FE model is very simple, the dynamic analysis with it gives accurate dynamic characteristics of steam generator cassette. And since the model is very simple, one can develop a full FE model of the reactor assembly with relatively small degree of freedom