Jelich, Christopher Baydoun, Suhaib Koji Voigt, Matthias Marburg, Steffen 2021 In this article, a greedy reduced basis algorithm is proposed for the solution of structural acoustic systems with parameter and implicit frequency dependence. The underlying equations of linear time-harmonic elastodynamics and acoustics are discretized using the finite element and boundary element method, respectively. The solution within the parameter domain is determined by a linear combination of reduced basis vectors. This basis is generated iteratively and given by the responses of the structural acoustic system at certain parameter samples. A greedy approach is followed by evaluating the next basis vector at the parameter sample which is currently approximated worst. The algorithm runs on a small training set which bounds the memory requirements and allows applications to large-scale problems with high-dimensional parameter domains. The computational efficiency of the proposed scheme is illustrated based on two numerical examples: a point-excited spherical shell submerged in water and a satellite structure subject to a diffuse sound pressure field excitation. application/pdf https://sonar.unidistance.ch/global/documents/320167 https://n2t.net/ark:/51647/srd1320167 https://sonar.unidistance.ch/documents/320167/files/JelBVM21.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1002/nme.6835 info:eu-repo/semantics/altIdentifier/ark/51647/srd1320167 info:eu-repo/semantics/openAccess CC BY-NC-ND International Journal for Numerical Methods in Engineering. - 2021, vol. 122, no. 24, p. 7409-7430 boundary element method finite element method greedy algorithm implicit parameter dependence reduced basis structural acoustic interaction open access info:eu-repo/classification/udc/6 A greedy reduced basis algorithm for structural acoustic systems with parameter and implicit frequency dependence http://purl.org/coar/resource_type/c_6501