@Article{cmes.2022.019705,
AUTHOR = {Haojie Lian, Leilei Chen, Xiao Lin, Wenchang Zhao, Stephane P. A. Bordas, Mingdong Zhou},
TITLE = {Noise Pollution Reduction through a Novel Optimization Procedure in Passive Control Methods},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {131},
YEAR = {2022},
NUMBER = {1},
PAGES = {1--18},
URL = {http://www.techscience.com/CMES/v131n1/46633},
ISSN = {1526-1506},
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 and
time-consuming preprocessing steps in conventional simulation and optimization methods. The effectiveness of
the present method is demonstrated by three dimensional numerical examples.},
DOI = {10.32604/cmes.2022.019705}
}