Abstract
This paper describes methods for construction of energy models of structural systems based on experimental data and prediction accuracy for modeling to correspond to the system with low modal densities. First, the method for construction of model as to Statistical Energy Analysis (SEA) and Energy Distribution (ED) are summarized. Then the comparison between SEA and ED are performed to the system comprising three series plates. As a result, the calculation of the correlation factor of normalized subsystem energy and loss factor clarified the condition shows the negative value of loss factors.
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