Metamaterial absorbers have been widely studied and continuously concerned owing to
their excellent resonance features of ultra‐thin thickness, light‐weight, and high absorbance …

Noise pollution has become a significant global problem in recent years. Unfortunately,
conventional acoustic materials cannot offer substantial improvements in noise reduction …

In this study, a composite meta-absorber with a flexible size is proposed, and a genetic
algorithm is used to optimize the geometric dimensions under normal incidence and free …

This study introduces a novel sound-absorbing sandwich structure with a folded core,
created through 3D printing technology, to address the challenge of weak sound absorption …

In this study, functionally graded foam made of Inconel 625 superalloy was successfully
produced using the template replication method, with open-cell polyurethane foams as a …

To achieve the broadband sound absorption at low frequencies within a limited space, an
optimal design of joint simulation method incorporating the finite element simulation and …

The design of low-frequency sound absorbers with broadband absorption characteristics
and optimized dimensions is a pressing research problem in engineering acoustics. In this …

The sandwich structure based on Triply periodic minimal surface (TPMS) is a lightweight
and high-strength multifunctional composite material that combines the versatility of heat …

In this paper, a large sample database is established by using a classical Helmholtz
resonator, and the acoustic performance parameters and geometric structural parameters …

A novel hybrid composite structure is proposed, which can shield electromagnetic pollution
and substantially increase sound absorption at the same time. The structure can be …