Integration of finite element and boundary element methods for calculating the radiated sound from a randomly excited structure

摘要

In this work, boundary element methods and finite element methods are combined with stochastic analysis to calculate noise radiated from a structure subjected to random excitation. A simply supported plate excited by a turbulent boundary layer flow is used to illustrate the developed technology. The auto and cross power spectral terms of the boundary layer are considered for prescribing the excitation. The development is validated through comparison of the numerical results with analytical results and test data available in literature.