A cavity-wall element for the statistical energy analysis of the sound transmission through double walls
(English)Manuscript (preprint) (Other academic)
The wave motion within a cavity between two flexible walls is first investigated numerically. The results then form the basis for a new SEA formulation in which each element describe one kind of coupled cavity-wall wave motion. This formulation obsoletes the non-resonant transmission path commonly used in SEA of sound transmission and compared to classical formulations it improves results at frequencies around and a bit above the double wall resonance. The new formulation is compared to three sets of measurements found in the literature showing fair agreements.
IdentifiersURN: urn:nbn:se:kth:diva-118436OAI: oai:DiVA.org:kth-118436DiVA: diva2:606070
FunderSwedish Research Council, 621-2005-5754EU, FP7, Seventh Framework Programme, 218508
QS 20132013-04-192013-02-182013-04-19Bibliographically approved