Engineering acoustic metamaterials for sound absorption: from uniform to gradient structures
The traditional sound absorption problem has not been completely resolved over the last
200 years. At every stage, its research has changed depending on practical requirements …
200 years. At every stage, its research has changed depending on practical requirements …
Development of acoustic liner in aero engine: a review
XQ Ma, ZT Su - Science China Technological Sciences, 2020 - Springer
Noise reduction for aircraft engine has attracted great concern due to the strict noise control
regulation nowadays. Conventional perforated sheet-over-honeycomb acoustic liners have …
regulation nowadays. Conventional perforated sheet-over-honeycomb acoustic liners have …
Bubble templated flexible ceramic nanofiber aerogels with cascaded resonant cavities for high-temperature noise absorption
D Zong, W Bai, M Geng, X Yin, J Yu, S Zhang, B Ding - ACS nano, 2022 - ACS Publications
Aviation noise pollution has become a significant public health problem, especially with the
endless improvement of flight speed and loading capacity. Existing aviation noise absorbers …
endless improvement of flight speed and loading capacity. Existing aviation noise absorbers …
[HTML][HTML] Composite honeycomb metasurface panel for broadband sound absorption
Composite honeycomb sandwich panels have been adopted in a wide range of applications
owing to their excellent mechanical properties. This paper demonstrates a design of a …
owing to their excellent mechanical properties. This paper demonstrates a design of a …
Broadband acoustic meta-liner with metal foam approaching causality-governed minimal thickness
Acoustic absorbers based on resonant cavities or porous materials have been extensively
investigated for developing acoustic liners but still suffer from narrow working frequency …
investigated for developing acoustic liners but still suffer from narrow working frequency …
Sound absorption performance of microperforated honeycomb metasurface panels with a combination of multiple orifice diameters
S Xie, D Wang, Z Feng, S Yang - Applied Acoustics, 2020 - Elsevier
This study demonstrated a microperforated honeycomb metasurface panel (MHMP) with a
micro-perforation on each honeycomb cell and designed an MHMP combining different …
micro-perforation on each honeycomb cell and designed an MHMP combining different …
Broadband and low-frequency acoustic liner investigations at NASA and ONERA
NASA and ONERA have explored a number of acoustic liner concepts over the last few
decades. This paper begins with a brief review regarding conventional liners as well as the …
decades. This paper begins with a brief review regarding conventional liners as well as the …
Acoustic metamaterials in aeronautics
Metamaterials, man-made composites that are scaled smaller than the wavelength, have
demonstrated a huge potential for application in acoustics, allowing the production of sub …
demonstrated a huge potential for application in acoustics, allowing the production of sub …
Acoustical modeling of micro-perforated panel at high sound pressure levels using equivalent fluid approach
Z Laly, N Atalla, SA Meslioui - Journal of Sound and Vibration, 2018 - Elsevier
An acoustic impedance model to characterize micro-perforated panels at high sound
pressure levels is proposed. The model uses a rigid frame porous medium, where the micro …
pressure levels is proposed. The model uses a rigid frame porous medium, where the micro …
Passive acoustic liners for aero-engine noise control: A review
P Ma, H Wang, D Li, S Yuan, X Fan - Mechanics of Advanced …, 2024 - Taylor & Francis
Aero-engine noise reduction has always been a critical challenge in the field of science and
engineering. Passive acoustic liners are considered one of the most effective structures for …
engineering. Passive acoustic liners are considered one of the most effective structures for …