2013
DOI: 10.1121/1.4805187
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A hybrid modeling approach for vibroacoustic systems with attached sound packages

Abstract: Modeling complex vibroacoustic systems including poroelastic materials using finite element (FE) based methods can be computationally expensive. Several attempts have been made to alleviate this drawback, such as high order hierarchical basis and substructuring approaches. Still, these methods remain computationally expensive or limited to simple configurations. On the other hand, analytical approaches, such as the Transfer Matrix Method (TMM), are often used, thanks to the lower computational burden. However,… Show more

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“…This gives rise to a number of hybrid approaches in which the full modelling of the trim layer can be done using the TMM. In a hybrid coupling between FEM and TMM, the expensive explicit modelling of the multilayer can be replaced by a TM model, while the detailed vibroacoustic system model can still be done using the FEM [115,116]. By combining the TMM and the SEA, the effects of a sound package, i.e.…”
Section: Extensionsmentioning
confidence: 99%
“…This gives rise to a number of hybrid approaches in which the full modelling of the trim layer can be done using the TMM. In a hybrid coupling between FEM and TMM, the expensive explicit modelling of the multilayer can be replaced by a TM model, while the detailed vibroacoustic system model can still be done using the FEM [115,116]. By combining the TMM and the SEA, the effects of a sound package, i.e.…”
Section: Extensionsmentioning
confidence: 99%