Modal-based fluid structure coupling in room acoustics considering non-deterministic properties

Nowadays fluid structure interaction methods gain more and more importance. For room acoustical problems the coupling to realistic boundary conditions, absorbers and reflectors, is still a remaining challenge in the optimization process for the frequency response of the acoustic volume. The following work will present a coupling method based on the Component Mode Synthesis and Hamilton’s Principle for the steady state response of linear room acoustic problems. Therein realistic boundaries like absorbers are coupled with the help of their related frequency dependent impedances. For a more physical interpretation uncertain parameters are considered within the input data. Basic possibilistic and probabilistic concepts are applied on benchmark configurations to estimate the variation in frequency response functions from uncertain input data.     «

Nowadays fluid structure interaction methods gain more and more importance. For room acoustical problems the coupling to realistic boundary conditions, absorbers and reflectors, is still a remaining challenge in the optimization process for the frequency response of the acoustic volume. The following work will present a coupling method based on the Component Mode Synthesis and Hamilton’s Principle for the steady state response of linear room acoustic problems. Therein realistic boundaries li...     »