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Sound insulation property of C-type sandwich panel for ships
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Kun LIU1, Yu-bin FANG1, Wen-an JIANG2, Yu GAO1
Journal of Ship Mechanics | 2024, 28(9) : 1451 - 1462
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Journal of Ship Mechanics | 2024, 28(9): 1451-1462
• Hydro/Structural Acoustics •
Sound insulation property of C-type sandwich panel for ships
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Kun LIU1, Yu-bin FANG1, Wen-an JIANG2, Yu GAO1
Affiliations
  • 1.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
  • 2.Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China
Published: 2024-09-20 doi: 10.3969/j.issn.1007-7294.2024.09.015
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Sandwich plates, as a new structure, have the advantages of strong design, light weight, high specific stiffness, good performance of vibration reduction and sound insulation, and have been used in various engineering structures. However, there are many types of sandwich structures, and it is difficult to theoretically analyze the sound insulation performance of complex sandwich structures. New approximate analysis methods are urgently needed. In this paper, based on the equivalent method of spring, torsion spring and concentrated mass, the sound-vibration coupling control equation of a C-type sandwich panel was established for the marine C-type sandwich panel. Using the spatial harmonic expansion method, the expression of the sound transmission loss of the C-shaped sandwich structure was derived. The influence of the system parameters of the sandwich panel on the sound insulation performance of the structure was discussed. The results show that the material properties and the thickness of the sandwich panel structure have greater influence on the sound insulation performance of the C-type sandwich panel structure. The finite element simulation was used to verify the validity of the theoretical analysis.

C-type sandwich panel  /  space harmonic expansion method  /  sound insulation  /  FEM
Kun LIU, Yu-bin FANG, Wen-an JIANG, Yu GAO. Sound insulation property of C-type sandwich panel for ships[J]. Journal of Ship Mechanics, 2024 , 28 (9) : 1451 -1462 . DOI: 10.3969/j.issn.1007-7294.2024.09.015
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Year 2024 volume 28 Issue 9
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.09.015
  • Receive Date：2024-03-19
  • Online Date：2026-03-26
  • Published：2024-09-20
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  • Received：2024-03-19
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Affiliations
    1.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
    2.Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China
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表12种不同金属材料的力学参数
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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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