SAMSARA FOR THIN CYLINDRICAL SHELLS

The possibility of defining similitudes and/or predictive models among structural and structural-acoustic systems is the focus of a specific activity, which led to the definition of a procedure named SAMSARA: Similitude and Asymptotic Models for Structural-Acoustic Research and Applications. It has been initially based on previous numerical and experimental investigations but later formally defined by invoking the Energy Distribution Approach (EDA). Here, a summary of the procedure is given and some more advances are presented by looking to a cylindrical thin shell. Some few rules are discussed in order to have an equivalent model able to represent under some hypotheses, the dynamic behavior of the original one. Basically, it was imposed to scale the linear dimensions assembly, by keeping the thickness ruled by a different parameter and further by keeping the original values of the structural damping. Despite the extreme simplicity of the proposed models, the results are really encouraging. The final aim is to define equivalent models to be used in laboratory measurements.