A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction
A composite matching layer composed of periodically arranged scatters with anti-reflection (AR) characteristics is proposed for broadband scattering reduction. The anti-reflection structure is composed of periodically arranged metal foam scatters, and it is the first attempt to be applied in the fie...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/1480264 |
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| _version_ | 1832559191866212352 |
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| author | Shande Li Xiaoxun Wu Jinxiu Duan Shuai Yuan Cun Wang Yane Ma Zhifu Zhang |
| author_facet | Shande Li Xiaoxun Wu Jinxiu Duan Shuai Yuan Cun Wang Yane Ma Zhifu Zhang |
| author_sort | Shande Li |
| collection | DOAJ |
| description | A composite matching layer composed of periodically arranged scatters with anti-reflection (AR) characteristics is proposed for broadband scattering reduction. The anti-reflection structure is composed of periodically arranged metal foam scatters, and it is the first attempt to be applied in the field of suppressing acoustic reflection. A complete theoretical model is developed to reveal the mechanism of scattering reduction and acoustic absorption based on effective medium theory and the transfer matrix method. The correctness and effectiveness of the theoretical model are verified by the finite element method (FEM), showing acoustic reflectance of less than 13.5% at broadband frequencies. The variation trends of reflectance are deeply investigated. The superior acoustic scattering reduction performance suggests that the matching layer possesses potential for acoustic imaging equipment and acoustic stealth. |
| format | Article |
| id | doaj-art-1ba8e577d18a4fcd8abcd000d4fe38e2 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1ba8e577d18a4fcd8abcd000d4fe38e22025-02-03T01:30:33ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/1480264A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering ReductionShande Li0Xiaoxun Wu1Jinxiu Duan2Shuai Yuan3Cun Wang4Yane Ma5Zhifu Zhang6State Key Laboratory of Digital Manufacturing Equipment and TechnologyState Key Laboratory of Digital Manufacturing Equipment and TechnologyState Key Laboratory of Digital Manufacturing Equipment and TechnologyState Key Laboratory of Digital Manufacturing Equipment and TechnologyState Key Laboratory of Digital Manufacturing Equipment and TechnologyHubei Institute of Specialty VehicleState Key Laboratory of Digital Manufacturing Equipment and TechnologyA composite matching layer composed of periodically arranged scatters with anti-reflection (AR) characteristics is proposed for broadband scattering reduction. The anti-reflection structure is composed of periodically arranged metal foam scatters, and it is the first attempt to be applied in the field of suppressing acoustic reflection. A complete theoretical model is developed to reveal the mechanism of scattering reduction and acoustic absorption based on effective medium theory and the transfer matrix method. The correctness and effectiveness of the theoretical model are verified by the finite element method (FEM), showing acoustic reflectance of less than 13.5% at broadband frequencies. The variation trends of reflectance are deeply investigated. The superior acoustic scattering reduction performance suggests that the matching layer possesses potential for acoustic imaging equipment and acoustic stealth.http://dx.doi.org/10.1155/2021/1480264 |
| spellingShingle | Shande Li Xiaoxun Wu Jinxiu Duan Shuai Yuan Cun Wang Yane Ma Zhifu Zhang A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction Shock and Vibration |
| title | A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction |
| title_full | A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction |
| title_fullStr | A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction |
| title_full_unstemmed | A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction |
| title_short | A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction |
| title_sort | composite matching layer with anti reflection characteristics for broadband acoustic scattering reduction |
| url | http://dx.doi.org/10.1155/2021/1480264 |
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