X Yu, L Cheng, X You - The Journal of the Acoustical Society of …, 2015 - pubs.aip.org
A sub-structuring approach, along with a unit cell treatment, is proposed to model expansion chamber silencers with internal partitions and micro-perforated panels (MPPs) in the …
X Yu, L Cheng - Journal of sound and vibration, 2015 - Elsevier
The broadband sound attenuation characteristics of expansion chamber silencers can be altered by their internal configuration. Three-dimensional modeling of such systems …
X Zhang, L Cheng - Applied Acoustics, 2020 - Elsevier
Despite the increasing interest in Micro-perforated panels (MPPs) for various noise control applications, the acoustic behavior of MPP liners in flow ducts has not been fully …
C Yang, L Cheng, J Pan - The Journal of the Acoustical Society of …, 2013 - pubs.aip.org
In this paper, a theoretical model of a micro-perforated panel (MPP) backed by a finite cavity and flush-mounted in an infinite baffle is developed and its performance in terms of sound …
XN Wang, YS Choy, L Cheng - The Journal of the Acoustical Society of …, 2012 - pubs.aip.org
A plate silencer consists of an expansion chamber with two side-branch cavities covered by light but extremely stiff plates. It works effectively with a wide stopband from low-to-medium …
X Zhang, L Cheng - The Journal of the Acoustical Society of America, 2019 - pubs.aip.org
Micro-perforated panels (MPPs) are widely used for broadband sound absorptions. For a MPP exposed to a grazing flow, existing acoustic impedance formulas based on different …
X Zhang, L Cheng, Y Liu, J Du - Journal of Sound and Vibration, 2021 - Elsevier
Modeling of vibro/acoustic systems with embedded acoustic components of complex geometries is a challenging task. In particular, the presence of irregular-shaped acoustic …
F Dumortier, V Meyer, L Maxit - Journal of Sound and Vibration, 2024 - Elsevier
Abstract The reverse Condensed Transfer Function (rCTF) method is a substructuring approach based on the concept of condensed mechanical receptance and acoustical …
H Min, H Lou, Y Zhao - Building and Environment, 2024 - Elsevier
Low-frequency noise generated by ventilation systems propagates into indoor environment through ducts. In this study, a novel micro-perforated panel (MPP) muffler, with the absence …