| 张体磊,李睿,董玲抒,李忠盛,黄安畏,孙彩云,丛大龙,吴永鹏.蜂窝夹层结构及其在直升机噪声控制上的应用[J].装备环境工程,2023,20(5):119-127. ZHANG Ti-lei,LI Rui,DONG Ling-shu,LI Zhong-sheng,HUANG An-wei,SUN Cai-yun,CONG Da-long,WU Yong-peng.Honeycomb Sandwich Structure and Its Application in Helicopter Noise Control[J].Equipment Environmental Engineering,2023,20(5):119-127. |
| 蜂窝夹层结构及其在直升机噪声控制上的应用 |
| Honeycomb Sandwich Structure and Its Application in Helicopter Noise Control |
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| DOI：10.7643/issn.1672-9242.2023.05.017 |
| 中文关键词: 蜂窝夹层结构 多孔吸声 共振吸声 单自由度 多自由度 直升机 被动噪声控制中图分类号:V214.6 文献标识码:A 文章编号:1672-9242(2023)05-0119-09 |
| 英文关键词:honeycomb sandwich structure porous sound absorption resonant sound absorption single-degree-of-freedom multi-degree-of-freedom helicopter passive noise control |
| 基金项目: |
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| Author | Institution |
| ZHANG Ti-lei | Harbin Regional Aviation Military Office, Harbin 150060, China |
| LI Rui | Harbin Regional Aviation Military Office, Harbin 150060, China |
| DONG Ling-shu | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| LI Zhong-sheng | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| HUANG An-wei | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| SUN Cai-yun | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| CONG Da-long | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| WU Yong-peng | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
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| 中文摘要: |
| 介绍了传统蜂窝夹层结构，它是由蜂窝芯材耦合面板/薄膜组合而成，具有优异的降噪特性。为进一步提升蜂窝夹层结构的降噪性能，结合多孔吸声原理及“吸/隔声结构功能一体化”概念，将多孔吸声材料填充至蜂窝芯中，形成了基于多孔吸声的蜂窝夹层结构，但中、低频降噪性能较差。结合微穿孔板、亥姆霍兹共振理论，开发了基于共振吸声的单自由度蜂窝夹层结构，由蜂窝芯材耦合穿孔面板/薄膜组合而成，提升了中、低频降噪特性，但是依旧存在降噪频带过窄的问题，只能在某段特定频率范围内表现出良好的降噪特性。为此，研发了基于共振吸声的多自由度蜂窝夹层结构，利用各层穿孔面板/薄膜和蜂窝结构特性，实现了不同频率噪声控制。最后总结了蜂窝夹层结构在国内外直升机被动噪声控制上的应用情况，展望了新型蜂窝夹层结构的发展趋势。 |
| 英文摘要: |
| The work aims to introduce the traditional honeycomb sandwich structure, which is composed of honeycomb core material coupled panel/film and has excellent noise reduction characteristics. In order to further improve the noise reduction performance of the honeycomb sandwich structure, the porous sound absorption materials was filled into the honeycomb core combined with the principle of porous sound absorption and the concept of "integration of sound absorption/insulation structure function", forming a honeycomb sandwich structure based on porous sound absorption, but the noise reduction performance at middle and low frequencies was poor. Combined with the micro-perforated plate and Helmholtz resonance theory, the single-degree-of-freedom honeycomb sandwich structure based on resonant sound absorption was developed, which was composed of honeycomb core material coupled with the perforated panel/film, and improved the noise reduction characteristics at medium and low frequencies. However, the noise reduction frequency band was still too narrow, which could only show good noise reduction characteristics within a certain frequency range. Therefore, the multi-degree-of-freedom honeycomb sandwich structure based on resonant sound absorption was developed. The perforated panels/films of each layer and the characteristics of honeycomb structure were used to achieve noise control at different frequencies. The application of honeycomb sandwich structure in passive noise control of helicopters in China and abroad is summarized, and the development trend of new honeycomb sandwich structure is prospected. |
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