Comparison of transmission loss prediction using condensed equivalent plate models
Uthayasuriyan, Arasan; Chevillotte, Fabien; Luc, Jaouen; Chronopoulos, Dimitrios; Gourdon, Emmanuel
Equivalent plate models are commonly used in order to simulate multilayer system as one single layer. This kind of approach enables for instance to reduce the mesh size and thus the number of degrees of freedom in finite element models. Usual condensed model rely on thin plate theory and are obviously limited when considering thick multilayers. In this work we present a comparison of the transmission loss prediction using different analytical models of solid layers: thin plate, thick plate (first order shear deformation) and 3D modelling (3D linear elasticity). Doing so, analytical limit for the validity of the thin plate theory is derived from wavenumber analyses. Applications to industry inspired cases are presented.
|Start Date||Sep 9, 2019|
|Book Title||Proceedings of the ICA 2019 and EAA Euroregio 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, 9 - 13 September 2019, Aachen, Germany|
|Institution Citation||Uthayasuriyan, A., Chevillotte, F., Luc, J., Chronopoulos, D., & Gourdon, E. (2019). Comparison of transmission loss prediction using condensed equivalent plate models. In Proceedings of the ICA 2019 and EAA Euroregio 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, 9 - 13 September 2019, Aachen, Germany, 273-280|
|Related Public URLs||http://pub.dega-akustik.de/ICA2019/data/index.html