The article reflecting the paper from Price and Crocker1 is out now. I nice reminder regarding the still ongoing and challenging discussion about how to correctly model double walls in SEA. The examples from the paper are presented as pyva example. In the low- and mid-frequency range the subsystems are strongly coupled. This strong coupling […]
JASA Article on Double Wall Simulation using SEA and Pyva Read More »
Have you ever tried to understand a single chapter of Allard’s and Attala’s famous book on the Sound Propagation in Porous Media? I went berserk because I got lost in the vast amount of symbols and to my total surprise …… there was no “Table of Symbols”. Thus, I started my own list of symbols
Symbol List for “Propagation of Sound in Porous Media” Read More »
In April 2024 I started my lecture on the book subject at TU-Munich. See the official website for details. A video version of this lecture will be found in the next weeks in Statistical Energy Analysis and Hybrid Methods Lecture https://www.epc.ed.tum.de/en/vib/teaching/statistical-energy-analysis
Lecture on Statistical Energy Analysis and Hybrid Methods Read More »
There is an ongoing discussion about if it is worth to implement the complicated Johnson-Champoux-Allard (JCA)[1] models or even the full Biot Model. Why not using the Delany-Bazley Model[3] or the modified version by Miki [4]. The Advantage of there empirical models is their simplicity, because the only parameter is the flow resistivity In the
Is the Delany-Bazley-Miki Model Precise Enough? Read More »
Introduction Area Junctions are special in SEA theory. For cavity-plate-cavity connections there are not only direct paths. This violates the principle SEA assumption that only connected subsystems can exchange energy An intrusive way to understand the different paths is the transmission formula from Cremer. and are mass per area, fluid density and speed of sound,
SEA Area Junctions Read More »