On the construction of multiscale surrogates for design optimization of acoustical materials

van Hai Trinh 1, 2 Johann Guilleminot 3 Camille Perrot 1
1 MSME - Laboratoire de Modélisation et Simulation Multi Echelle
2 Le Quy Don Technical University
3 Duke University [Durham]
Abstract : This paper is concerned with the use of polynomial metamodels for the design of acoustical materials, considered as equivalent fluids. Polynomial series in microstructural parameters are considered, and allow us to approximate the multiscale solution map in some well-defined sense. The relevance of the framework is illustrated by considering the prediction of the sound absorption coefficient. In accordance with theoretical results provided elsewhere in the literature, it is shown that the surrogate model can accurately approximate the solution map at a reasonable computational cost, depending on the dimension of the input parameter space. Microstructural and process optimization by design are two envisioned applications.
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van Hai Trinh, Johann Guilleminot, Camille Perrot. On the construction of multiscale surrogates for design optimization of acoustical materials. Acta Acustica united with Acustica, Hirzel Verlag, 2018, 104, pp.1 - 4. ⟨10.3813/AAA.919139⟩. ⟨hal-01683381⟩

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