Publicaties
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Fast mean and variance computation of the diffuse sound transmission through finite-sized thick and layered wall and floor systems KU Leuven
© 2018 Elsevier Ltd A method is developed for computing the mean and variance of the diffuse field sound transmission loss of finite-sized layered wall and floor systems that consist of solid, fluid and/or poroelastic layers. This is achieved by coupling a transfer matrix model of the wall or floor to statistical energy analysis subsystem models of the adjacent room volumes. The modal behavior of the wall is approximately accounted for by ...
Sound transmission through finite rib-stiffened and orthotropic plates KU Leuven
© 2016 S. Hirzel Verlag · EAA. Rib-stiffened plates are commonly employed for reasons of weight and static stiffness. Unfortunately, attaching stiffeners to a plain plate generally increases its radiation efficiency and reduces its airborne sound insulation. This contribution aims at gaining insight into the sound insulation performance of finite-sized rib-stiffened plates through numerical modeling, with a particular focus on finding a physical ...
Mitigation of railway induced ground vibration by stiff wave barriers KU Leuven
© 2016, German Acoustical Society (DEGA). All rights reserved. Railway induced vibrations can be a source of annoyance for lineside residents. Within the frame of the EU FP7 project RIVAS, different mitigation measures on the transmission path have been investigated. This paper shows the potential of stiff wave barriers to reduce low frequency railway induced vibrations by means of field measurements and numerical simulations. In El Realengo ...
Semi-discrete coincidence in the mid-frequency sound transmission through rib-stiffened panels KU Leuven
Plates with attached beams or ribs, rather than monolithic plates, are commonly employed in civil and mechanical engineering for reasons of weight and static stiffness. Unfortunately, attaching stiffeners to a plain plate generally increases its radiation efficiency and reduces its airborne sound insulation. This contribution aims at gaining insight into the sound insulation of rib-stiffened plates in the mid-frequency range, where the modal ...