Optimization of structural parameters for the sound absorption performance of a cellular ceramic foam
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 1 October 2021
Issue publication date: 26 October 2021
Abstract
Purpose
The purpose of this paper is to provide an optimization schedule of structural parameters for the sound absorption performance of a cellular ceramic foam in the sound frequency range of 200–4,000 Hz.
Design/methodology/approach
The cellular ceramic foam with porosity of about 60–75% and the pore size of about 1–7 mm was successfully prepared by using natural zeolite powder as the main raw material. For this ceramic foam, the sound absorption performance was measured, and the absorption structure was optimized by some important structural parameters. With orthogonal experiment, optimization of structural parameters was found for absorption performance. By means of the range analysis method, the main factor is known to influence the performance of ceramic foam.
Findings
The present ceramic foam may have good absorption performance although at relatively low frequencies of 400–4,000 Hz while structural parameters of sample are appropriately combined. With orthogonal experiment, optimization of structural parameters for the absorption performance was found to be as follows: sample thickness, 25 mm; porosity, 73.5%; pore size, 4–5 mm and air gap depth, 20 mm. To influence the performance, sample thickness is the main factor, air gap depth is the second and both of pore size and porosity would have a relatively slight effect.
Originality/value
This paper presents a method to optimize the structural parameters of a cellular ceramic foam for sound absorption performance by means of orthogonal experiment.
Keywords
Acknowledgements
This work was supported in part by the Testing Foundation of BNU (grant no. C20). The authors thank Ms X.Y.Ye for her experimental assistance in sound absorption examination.
Citation
Sun, J.X. and Liu, P.S. (2021), "Optimization of structural parameters for the sound absorption performance of a cellular ceramic foam", Multidiscipline Modeling in Materials and Structures, Vol. 17 No. 6, pp. 1108-1118. https://doi.org/10.1108/MMMS-05-2021-0082
Publisher
:Emerald Publishing Limited
Copyright © 2021, Emerald Publishing Limited