Acoustic behavior prediction of monodisperse foams using polynomial surrogates

  • Van-Hai Trinh Faculty of Vehicle and Energy Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet street, Bac Tu Liem district, Hanoi, Vietnam
Keywords: membrane foam, transport property, sound absorption, multiscale simulation, polynomial surrogate

Abstract

Acoustic properties of foams, such as macroscopic transports and sound absorption, are significantly influenced by their local morphology. The present paper develops a polynomial chaos expansion (PCE)-based surrogate model for characterizing the microstructure-properties relationships of acoustic monodisperse foams. First, the acoustic properties of the considered structures are estimated numerically by homogenization techniques using an idealized periodic unit cell and the Johnson-Champoux-Allard-Pride-Lafarge (JCAPL) model. The reference maps of transport parameters are then used to construct the PCE–based surrogates in the design space involving a set of foamy microstructural parameters such as membrane content, cell size, and porosity. Finally, after a validation phase and assessing convergence characteristics, the generated surrogates are employed to design some foam-based absorbers to illustrate the accuracy and computational efficiency of the proposed method.

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Published
16-08-2021
How to Cite
Trinh, V.-H. (2021). Acoustic behavior prediction of monodisperse foams using polynomial surrogates. Journal of Science and Technology in Civil Engineering (STCE) - HUCE, 15(3), 157-170. https://doi.org/10.31814/stce.nuce2021-15(3)-13
Section
Research Papers