Abstract
RESOUND is a full-spectrum structural acoustic analysis method that uses finite element analysis in the low frequency region, statistical energy analysis in the high frequency region and a hybrid approach in the mid frequency region. In this paper, acoustic radiation from a frame-stiffened panel into a large acoustic space will be investigated. Over the frequency range of interest, the frame has relatively few modes and exhibits long wavelength global behavior, while the panel has a large number of modes and exhibits short wavelength local behavior. Numerical and experimental results will be presented which illustrate how the frame and panel interact to give rise to the radiated sound field.
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