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On the sound absorption performance determination and optimization of composite sound absorber of ultra-thin and bulk porous materials
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Yinjie LI1, 2, Jiazhu LI1, 2, Chuanxing BI1, 2, Miao ZHANG3, Jian CHEN1, 2, Sheng TANG1, 2
Journal of Vibration Engineering | 2025, 38(10) : 2238 - 2246
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Journal of Vibration Engineering | 2025, 38(10): 2238-2246
On the sound absorption performance determination and optimization of composite sound absorber of ultra-thin and bulk porous materials
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Yinjie LI1, 2, Jiazhu LI1, 2, Chuanxing BI1, 2, Miao ZHANG3, Jian CHEN1, 2, Sheng TANG1, 2
Affiliations
  • 1.School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China
  • 2.Anhui Automotive NVH Engineering and Technology Research Center, Hefei 230009, China
  • 3.Shanhe Intelligent Equipment Company Limited by Shares, Changsha 410100, China
doi: 10.16385/j.cnki.issn.1004-4523.202312020
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To ameliorate the low-frequency sound absorption performance of bulk porous materials, a theoretical model for predicting the sound absorption of the composite structure incorporating flexible ultra-thin and bulk porous materials is derived. The model integrates Johnson-Champoux-Allard (JCA) model and acoustic impedance model for flexible ultra-thin materials, employing non-woven fabric and melamine cotton as illustrative instances. The accuracy of this model is validated through experimental verification, and particle swarm optimization (PSO) is employed to optimize the parameters of the composite structure. The analysis results indicate that the addition of a layer of non-woven fabric on the surface of traditional bulk porous materials significantly enhances the low-frequency sound absorption performance. This paper provides a theoretical foundation for the determination, analysis and optimization of the sound absorption performance of the composite sound-absorbing structure composed of flexible ultra-thin and bulk porous materials, Additionally, it presents an effective method for improving the low frequency sound absorption performance without changing the thickness of the original sound absorber.

composite sound absorber  /  ultra-thin  /  non-woven fabric  /  bulk porous materials  /  sound absorption coefficient
Yinjie LI, Jiazhu LI, Chuanxing BI, Miao ZHANG, Jian CHEN, Sheng TANG. On the sound absorption performance determination and optimization of composite sound absorber of ultra-thin and bulk porous materials[J]. Journal of Vibration Engineering, 2025 , 38 (10) : 2238 -2246 . DOI: 10.16385/j.cnki.issn.1004-4523.202312020
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Year 2025 volume 38 Issue 10
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.202312020
  • Receive Date：2023-12-06
  • Online Date：2026-02-04
Article Data
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History
  • Received：2023-12-06
  • Revised：2024-01-19
Funding
Affiliations
    1.School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China
    2.Anhui Automotive NVH Engineering and Technology Research Center, Hefei 230009, China
    3.Shanhe Intelligent Equipment Company Limited by Shares, Changsha 410100, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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