Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating
This work presents a vibroacoustic response model for a fluid-loaded, simply supported rectangular plate covered by a composite acoustic coating consisting of damping and decoupling layers. The model treated the damping layer and base plate as a unified whole under pure bending moments and the decou...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/7460457 |
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| _version_ | 1832564038861586432 |
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| author | Baihua Yuan Meng Chen Yu Liu Shexu Zhao Heng Jiang |
| author_facet | Baihua Yuan Meng Chen Yu Liu Shexu Zhao Heng Jiang |
| author_sort | Baihua Yuan |
| collection | DOAJ |
| description | This work presents a vibroacoustic response model for a fluid-loaded, simply supported rectangular plate covered by a composite acoustic coating consisting of damping and decoupling layers. The model treated the damping layer and base plate as a unified whole under pure bending moments and the decoupling layer as a three-dimensional, isotropic, linear elastic solid. The validity of the model was verified by both numerical analysis and experiments and was shown to accurately extend previous studies that were limited to a plate covered by a single damping or decoupling layer with an evaluation confined solely to numerical analysis. The trends of the numerical and experimental results are generally consistent, with some differences due to the influences of water pressure and the frequency dependence of the material parameters, which are not taken into account by the numerical analysis. Both experimental and numerical results consistently show that the radiated noise reduction effect of the composite coating is superior to that of single-type coatings, which is attributed to the fact that the composite coating combines the merits of both the high vibration suppression performance of the damping layer and the superior vibration isolation performance of the decoupling layer. |
| format | Article |
| id | doaj-art-03564992928f4e608f1283303ffa8bcc |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-03564992928f4e608f1283303ffa8bcc2025-02-03T01:11:58ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/74604577460457Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic CoatingBaihua Yuan0Meng Chen1Yu Liu2Shexu Zhao3Heng Jiang4Department of Engineering Mechanics, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiaotong University, Minhang, Shanghai 200240, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaDepartment of Engineering Mechanics, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiaotong University, Minhang, Shanghai 200240, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaThis work presents a vibroacoustic response model for a fluid-loaded, simply supported rectangular plate covered by a composite acoustic coating consisting of damping and decoupling layers. The model treated the damping layer and base plate as a unified whole under pure bending moments and the decoupling layer as a three-dimensional, isotropic, linear elastic solid. The validity of the model was verified by both numerical analysis and experiments and was shown to accurately extend previous studies that were limited to a plate covered by a single damping or decoupling layer with an evaluation confined solely to numerical analysis. The trends of the numerical and experimental results are generally consistent, with some differences due to the influences of water pressure and the frequency dependence of the material parameters, which are not taken into account by the numerical analysis. Both experimental and numerical results consistently show that the radiated noise reduction effect of the composite coating is superior to that of single-type coatings, which is attributed to the fact that the composite coating combines the merits of both the high vibration suppression performance of the damping layer and the superior vibration isolation performance of the decoupling layer.http://dx.doi.org/10.1155/2017/7460457 |
| spellingShingle | Baihua Yuan Meng Chen Yu Liu Shexu Zhao Heng Jiang Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating Shock and Vibration |
| title | Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating |
| title_full | Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating |
| title_fullStr | Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating |
| title_full_unstemmed | Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating |
| title_short | Experimental and Theoretical Analysis for a Fluid-Loaded, Simply Supported Plate Covered by a Damping and Decoupling Composite Acoustic Coating |
| title_sort | experimental and theoretical analysis for a fluid loaded simply supported plate covered by a damping and decoupling composite acoustic coating |
| url | http://dx.doi.org/10.1155/2017/7460457 |
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