  An original numerical framework is developed in the present research work in
order to estimate the free field sound radiation from baffled structural panels
subjected to turbulent boundary layer-induced excitation. A semi-analytical
method is used to estimate the TBL wall pressure spectrum which is decomposed
using Cholesky technique to obtain random wall pressure in the frequency
domain. Structural panels are modeled using the finite element technique and a
coupled finite element boundary element modeling technique is developed to
estimate the sound power level radiating into the free field. Results are
obtained for laminated composite structural panels with various fiber
orientations and significant findings are discussed. The developed technique
has the potential to be further extended for complex structures in terms of
geometry, material properties, and boundary conditions. The complete numerical
toolbox, developed in an in-house MATLAB environment, enables the prediction of
turbulent structure acoustic coupled behavior at an early design stage.
