Two observations on the wave approach to SEA: Keynote Lecture
2007 (English)In: 14th International Congress on Sound and Vibration 2007, ICSV 2007, 2007, 4483-4501 p.Conference paper (Refereed)
First, it is shown that the use of SEA coupling factors derived for the coupling of semi infinite systems is consistent with coupling power proportionality. This demonstration is axiomatic, relying on a set of postulates. It is useful in teaching SEA, as it illustrates concepts and assumptions commonly made. It might be useful for research aiming for a better set of postulates upon which a statistical energy method can be built. Second, the wave motion in double walls is investigated. A new SEA formulation is presented in which each element describe one kind of coupled cavity-wall wave motion. This formulation obsoletes the non-resonant transmission paths and compared to classical formulations, it improves results at frequencies around and a bit above the double wall resonance.
Place, publisher, year, edition, pages
2007. 4483-4501 p.
Coupling factor, Coupling power, Nonresonant, Semi-infinite systems, Statistical energy methods, Transmission paths, Wave approach, Wave motions
IdentifiersURN: urn:nbn:se:kth:diva-78119ScopusID: 2-s2.0-84881463618ISBN: 978-162748000-0OAI: oai:DiVA.org:kth-78119DiVA: diva2:492310
14th International Congress on Sound and Vibration 2007, ICSV 2007; Cairns, QLD; Australia; 9 July 2007 through 12 July 2007
FunderSwedish Research Council, 621-2005-5754
QC 201202082012-02-082012-02-072014-10-27Bibliographically approved