A mode-oscillator-simulation technique on Statistical Energy Analysis systematization

A mode-oscillator-simulation technique is introduced to systematize the Statistical Energy Analysis (SEA) prediction procedure. By simulating each subsystem mode as a simple vibrating oscillator, two general, conservatively coupled subsystems can be reasonably treated as two sets of oscillators coupled via a set of mass-, gyroscopic-, and spring-coupling elements in the condition of weak coupling. The approach can then be accommodated within the conventional SEA to predict the SEA parameters and responses of a built-up system directly from the local modal properties of each subsystem and the coupling elements. A plate-plate coupling case is presented to demonstrate its SEA implementation. Comparing with traditional SEA modeling, the new technique provides a simpler and more systematic predicting procedure.