ENERGY TRANSFER FOR HIGH FREQUENCIES IN BUILT-UP STRUCTURES

This paper is concerned with the prediction of vibrations at high frequencies in built-up structures. In the high-frequency range, the dynamical behaviour of structures is driven by energy transfer rather than modal aspects. The description of systems in terms of energy is thus well-suited and leads to closed-form equations of an integral type on energy variables. The numerical solution of these equations is achieved with appropriate software called CeReS, and the results are compared with experimental measurements on a multi-plate structure.