Haojie Lian1,2, Leilei Chen2,3, Xiao Lin4, Wenchang Zhao5,*, Stephane P. A. Bordas6,7, Mingdong Zhou8,*
CMES-Computer Modeling in Engineering & Sciences, Vol.131, No.1, pp. 1-18, 2022, DOI:10.32604/cmes.2022.019705
Abstract This paper proposes a novel optimization framework in passive control techniques to reduce noise pollution. The
geometries of the structures are represented by Catmull-Clark subdivision surfaces, which are able to build gap-free
Computer-Aided Design models and meanwhile tackle the extraordinary points that are commonly encountered
in geometric modelling. The acoustic fields are simulated using the isogeometric boundary element method, and a
density-based topology optimization is conducted to optimize distribution of sound-absorbing materials adhered
to structural surfaces. The approach enables one to perform acoustic optimization from Computer-Aided Design
models directly without needing meshing and volume parameterization, thereby avoiding the geometric errors… More >
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