In this article, an innovative method is proposed for broadband topology optimization of
sound‐absorbing materials adhering to the surface of a sound barrier structure. Helmholtz …

Open-cell porous materials have been reported as a promising concept for mitigating
turbulent boundary-layer trailing-edge noise. This manuscript examines the aeroacoustics of …

Based on a level set-based topology optimization method, this study designs an acoustic
metasurface capable of tailoring reflection wave arbitrarily. The present metasurface is …

In this paper, buckling analysis of two-directionally porous beam is conducted. Based on the
available results of Young's modulus and mass density via Gaussian random field theory, a …

The low-frequency sound-absorption performance of porous acoustic materials is poor,
while the combination of porous materials and scatterer-based structures can improve the …

The poroelastic material is often used as a sandwich core due to its lightweight and
excellent sound insulation and absorption, and the research revealed that poroelastic …

Noise barriers are regarded as the most efficient way to mitigate high-speed railway (HSR)
noise. To enhance their performance, the present paper introduces a novel type of noise …

Conventional sound barriers are constrained by fixed geometry which results in many
limitations. In this research, origami, the paper folding technique, is exploited as a platform to …

In this study, the average sound absorption coefficient of a composite hybrid porous
metamaterial (CHPM) structure was improved in the frequency range from 0 to 10 kHz by …

This study presents a combined shape and topology optimization method for designing
sound barriers by using the isogeometric boundary element method. The objective function …