To improve efficiency in the transport sector, weight is often reduced; however, thinner structures tend to exhibit higher vibration amplitudes, which in turn leads to sound radiation into passenger cabins. This dissertation investigates a previously published approach for efficiently characterizing this sound radiation. The aim of the work is to assess the applicability of this method to real cavities such as aircraft cabins. The study examines the involvement of standing waves in the interior, the coupling strength between the fluid and structural subsystems, and the geometric requirements of the modeling approach. The results reveal the presence of standing waves and propose a new criterion for identifying strongly and weakly coupled systems. However, the additional geometric requirements demonstrated for cabin configurations prove to be a significant limitation for practical applicability.
Bernd-Christian Hölscher
Voraussetzungen der Existenz frequenzunabhängiger Schalleinstrahlungsformen
Springer (2025) [Link]
