An efficient analytical methodology has been developed with the finite element method which may be used to predict the low frequency vibro-acoustic environment within an aerospace flight vehicle. This methodology includes general purpose capabilities for solving problems involving the effects of structure/acoustic interaction and random excitation pressure fields. Computational efficiency is enhanced by decoupling the structure from the acoustic volume, and taking advantage of reciprocity in the random vibration and vibro-acoustic formulations. The application of the analytical methodology to an example problem found good agreement with previous research, demonstrating the feasibility of the methodology described herein.
Finite element prediction of vibro-acoustic environments
Finite Elemente Vorhersage von Vibroakustischen Umgebungen
SAE-Papers ; Sep ; 1-9
1989
9 Seiten, 9 Bilder, 1 Tabelle, 20 Quellen
Conference paper
English
Finite Element Prediction of Vibro-Acoustic Environments
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