Acoustic Properties of Absorbing Materials

Piana, Edoardo Alessio; Bonfiglio, Paolo; Rychtáriková, Monika

doi:10.3390/app12094446

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Acoustic protection is a critical aspect in many industrial, residential, and commercial settings. The use of perforated panels has gained popularity in recent years as an effective means of reducing unwanted sound levels [1]. Plastic perforated panels, in particular, offer the advantage of low weight and high durability.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of Plastic Perforated Panel for Acoustic Protection

Alina,

Vasile,

Catalin

et al. 2023

Mater. Plast.

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Acoustic protection is an important aspect in various industrial, commercial and residential applications. In order to reduce the transmission of noise, perforated panels are frequently used as a barrier. The present study aims to conduct a numerical analysis of plastic perforated panels for acoustic protection. The study employed a finite element method (FEM) approach and focused on the propagation of acoustic waves through perforations of varying diameters (30 mm, 40 mm, 50 mm, 60 mm, 70 mm and 90 mm) and at different frequencies (250 Hz, 500 Hz, 1000 Hz and 1500 Hz). The numerical analysis was conducted using the finite element software ANSYS. This work offers numerical analysis models of acoustic wave propagation, which can be used by those interested in similar problems, for different environments, in closed or open spaces. The results showed that the perforation diameter and frequency play a crucial role in the performance of the plastic perforated panels as an acoustic barrier. The results of the author�s research pointed out that the plastic materials can be used successfully in the construction of acoustic barriers. Next to it, the findings of this study can provide valuable insights for engineers and designers in the selection and optimization of plastic perforated panels for acoustic protection applications.

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Section: Introductionmentioning

confidence: 99%

Numerical analysis of Plastic Perforated Panel for Acoustic Protection

Alina,

Vasile,

Catalin

et al. 2023

Mater. Plast.

View full text Add to dashboard Cite

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A Many-Objective Joint Parallel Simulation Method for Acoustic Optimization Design of Sound-Absorbing Structures

2022

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This paper establishes a many-objective MATLAB with a COMSOL joint parallel simulation optimization method in order to solve the current situation of low efficiency, single objective, and poor effect in acoustic optimization design research for a sound-absorbing structure. Our proposed method combines the means for population partitioning, monitoring, and adaptive normalization, within the framework of the NSGA-III algorithm, which takes the hyperplane deployment scheme into account in its entirety. Compared to the traditional genetic algorithm toolbox of the joint COMSOL optimization scheme, it is shown that the joint parallel simulation optimization method that is constructed in this paper achieves a higher optimization efficiency and a better experimental performance, thereby aiding in the identification of the optimal solution to multiple objectives. The optimization efficiency can increase linearly as the number of available cores on the computer increases. This method is then used to construct a parallel, low-frequency, broadband, highly-sound-absorbing structure. Without any constraints on the optimization objective, the diversity of the optimization results is evident within the parameter optimization range of this paper. The optimization results are stable and substantial, with constrained optimization objectives that have some reference value. In addition, the proposed method can solve acoustic vibration optimization problems and can be applied to other finite element optimization problems.

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Acoustic Properties of Absorbing Materials

Abstract: Thanks to the progress made in materials research and to the introduction of innovative manufacturing technologies, a wide range of sound-absorbing elements are currently available to adjust the acoustic features of an environment [...]

Cited by 2 publications

References 11 publications

Numerical analysis of Plastic Perforated Panel for Acoustic Protection

Numerical analysis of Plastic Perforated Panel for Acoustic Protection

A Many-Objective Joint Parallel Simulation Method for Acoustic Optimization Design of Sound-Absorbing Structures

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