Modelowanie izolacyjności akustycznej przegród warstwowych

Theoretical calculation of transmission loss of two layers noise panels

  • Leszek Majkut AGH Akademia Górniczo-Hutnicza im. St. Staszica w Krakowie
Keywords: transmission loss, Kirchhoff-Love plate, Mindlin – Reissner plate, mechanical impedance, homogenisation


In the paper basic theoretical models of transmission loss calculation are described. Four different methods of homogenisation used for building of the simplified panel model are describeb. Simplified model is the single homogeneous isotropic plate panel. For this panel three impedance values of one rigid and two flexible body models of panel are described and analysed. As flexible models the thin plate (Kirchhoff-Love plate model) i thick (Mindlin – Reissner model) are analysed. All results are compared to results of 3D FEM model.


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