Transmission loss of plates with multiple embedded acoustic black holes using statistical modal energy distribution analysis
Acoustic black holes (ABHs) in beams and plates have been extensively studied as a
passive method for vibration attenuation and noise reduction. However, most research to …
passive method for vibration attenuation and noise reduction. However, most research to …
Noise reduction via three types of acoustic black holes
J Deng, L Zheng - Mechanical Systems and Signal Processing, 2022 - Elsevier
In the last decades, several types of ABHs, ie circular, annular, and rectangular ABHs, have
been used for vibration attenuation. However, only the circular ABH has been studied for …
been used for vibration attenuation. However, only the circular ABH has been studied for …
[HTML][HTML] Optimal balance between mass and smoothed stiffness in simulation of acoustic problems
Abstract The Finite Element Method (FEM) is known to behave overly-stiff, which leads to an
imbalance between the mass and stiffness matrices within discretized systems. In this work …
imbalance between the mass and stiffness matrices within discretized systems. In this work …
A graph theory approach to identify resonant and non-resonant transmission paths in statistical modal energy distribution analysis
Statistical modal energy distribution analysis (SmEdA) extends classical statistical energy
analysis (SEA) to the mid frequency range by establishing power balance equations …
analysis (SEA) to the mid frequency range by establishing power balance equations …
A method to investigate mid and high-frequency vibration energy transfer paths using the irrotational intensity
J Takhchi, M Ouisse, E Sadoulet-Reboul… - Journal of Sound and …, 2024 - Elsevier
Structural intensity fields provide a clear understanding of the noise, vibration and
harshness (NVH) behavior of complex structures by showing the vibration energy flow …
harshness (NVH) behavior of complex structures by showing the vibration energy flow …
Design optimization of mid-frequency vibro-acoustic systems using a statistical modal energy distribution analysis model
Y Yu, G Zhao, S Ren - Structural and Multidisciplinary Optimization, 2019 - Springer
In the past decades, many researches have been done on the design optimization of low-
and high-frequency vibro-acoustic systems. However, the work of mid-frequency vibro …
and high-frequency vibro-acoustic systems. However, the work of mid-frequency vibro …
Investigation of statistical energy analysis coupling loss factors of vibro-acoustic systems under thermal environment
Vibro-acoustic systems in aviation engineering could operate in a thermal environment and
suffer from high-frequency dynamic excitations. The high-frequency vibro-acoustic problems …
suffer from high-frequency dynamic excitations. The high-frequency vibro-acoustic problems …
Optimizing material properties of composite plates for sound transmission problem
To calculate the specific transmission loss (TL) of a composite plate, the conjugate gradient
optimization method is utilized to estimate and optimize material properties of the composite …
optimization method is utilized to estimate and optimize material properties of the composite …
Layout optimization of porous sound-absorbing material in mid-frequency vibro-acoustic systems
Y Yu, G Zhao, S Ren, B Wang - Journal of Fluids and Structures, 2021 - Elsevier
In this paper, a new layout optimization technique is integrated with a statistical modal
energy distribution analysis (SmEdA) model to obtain the optimal layout of a porous sound …
energy distribution analysis (SmEdA) model to obtain the optimal layout of a porous sound …
Modal energy analysis for mechanical systems excited by spatially correlated loads
Abstract MODal ENergy Analysis (MODENA) is an energy-based method, which is proposed
to deal with vibroacoustic problems. The performance of MODENA on the energy analysis of …
to deal with vibroacoustic problems. The performance of MODENA on the energy analysis of …