Manufacturing of membrane acoustical metamaterials for low frequency noise reduction and control: a review

C Wang, L Cai, M Gao, L Jin, L Sun… - Mechanics of …, 2024 - Taylor & Francis
As a subcategory of acoustic metamaterials, membrane acoustic metamaterials (MAMs) are
lighter and more adjustable than other types of acoustic metamaterials when it comes to low …

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Y Zhang, J Zhang, Y Li, D Yao, Y Zhao, Y Ai, W Pan… - Acoustics, 2024 - mdpi.com
Acoustic metamaterials (AMs) composed of periodic artificial structures have extraordinary
sound wave manipulation capabilities compared with traditional acoustic materials, and they …

Development of adjustable parallel helmholtz acoustic metamaterial for broad low-frequency sound absorption band

X Yang, F Yang, X Shen, E Wang, X Zhang, C Shen… - Materials, 2022 - mdpi.com
For the common difficulties of noise control in a low frequency region, an adjustable parallel
Helmholtz acoustic metamaterial (APH-AM) was developed to gain broad sound absorption …

Acoustic metamaterials for low-frequency noise reduction based on parallel connection of multiple spiral chambers

H Duan, F Yang, X Shen, Q Yin, E Wang, X Zhang… - Materials, 2022 - mdpi.com
Acoustic metamaterials based on Helmholtz resonance have perfect sound absorption
characteristics with the subwavelength size, but the absorption bandwidth is narrow, which …

Bionic design and numerical studies of spider web-inspired membrane-type acoustic metamaterials

E Cao, B Jia, D Guo, B Li, W Wang, H Huang - Composite Structures, 2023 - Elsevier
Being demonstrated to have excellent soundproof properties, Membrane-type acoustic
metamaterials (MAMs) have been extensively investigated. Inspired by a spider web, this …

Noise Control in Air Mechanical Ventilation Systems with Three-Dimensional Metamaterials

A Trematerra, A Bevilacqua, G Iannace - Applied Sciences, 2023 - mdpi.com
The diffusion of mechanical ventilation systems increased rapidly due to the climate
changes in all parts of the world. The mechanical ventilation systems are mainly used in the …

Study on a hexagonal acoustic metamaterial cell of multiple parallel-connection resonators with tunable perforating rate

H Cheng, F Yang, X Shen, X Yang, X Zhang, S Bi - Materials, 2023 - mdpi.com
The limited occupied space and various noise spectrum requires an adjustable sound
absorber with a smart structure and tunable sound absorption performance. The hexagonal …

[HTML][HTML] Improving Acoustic Properties of Sandwich Structures Using Recycled Membrane and HoneyComb Composite (RMHCC)

G Ciaburro, VP Romero, G Iannace, L Bravo Moncayo - Buildings, 2024 - mdpi.com
The motivation behind this study is to improve acoustic environments in living spaces using
sustainable materials. This research addresses the challenge of enhancing the acoustic …

Experimental and numerical investigation of sound absorption characteristics of rebonded polyurethane foam

MJ Mitrevska, V Mickovski, T Samardzioska… - Applied Sciences, 2022 - mdpi.com
Polyurethane foam (PUF) is an exceptionally adaptable product that has a variety of
applications—it can be found almost everywhere. Due to such high utilization, the amount of …

Enhancing Air Traffic Management and Reducing Noise Impact: A Novel Approach Integrating Băneasa Airport with Otopeni RO Airport

AC Toma, G Cican, DE Crunteanu - Applied Sciences, 2023 - mdpi.com
Over the years, Bucharest's Henri Coandă International Airport has registered a constant
and high increase in air traffic, in terms of both passengers and aircraft movements. This …