| 微穿孔消声声衬降噪实验 |
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| 引用本文： | 李运敏,吕亚东,冯毓诚,胡宗安. 微穿孔消声声衬降噪实验[J]. 航空动力学报, 1994, 9(3): 315-317,337 |
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| 作者姓名： | 李运敏 吕亚东 冯毓诚 胡宗安 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 介绍用有机玻璃制作的两套结构尺寸不同的微穿孔消声声衬试件, 在单级跨音压气机台上进行的3次降噪实验。目前国内尚无人获得微穿孔消声声衬在跨音、大流量、高声压级模拟声源环境条件下的噪声测试数据。通过实验, 为进一步合理地设计声衬提供了参考数据, 并看到了这种降噪方法在流体机械管道消声方面的应用前景。
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| 关 键 词： | 穿孔吸声衬 噪声控制 噪声降低系统 |
| 收稿时间： | 1993-10-01 |
| 修稿时间： | 1993-12-01 |
EXPERIMENTAL INVESTIGATION ON PERFORATED ACOUSTIC LINER IN A SINGLE TRANSONIC AXIAL COMPRESSOR INLET DUCT |
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| Li Yunmin,Lu Yadong,Hu Zongan. EXPERIMENTAL INVESTIGATION ON PERFORATED ACOUSTIC LINER IN A SINGLE TRANSONIC AXIAL COMPRESSOR INLET DUCT[J]. Journal of Aerospace Power, 1994, 9(3): 315-317,337 |
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| Authors: | Li Yunmin Lu Yadong Hu Zongan |
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| Affiliation: | 4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | Some experimental results and analyses from the measurements of the sound field in a single transonic axial compressorr inlet duct with single plastic glass lining are presented.The plastic glass linings are designed and made by ourselves (two kinds of perforate rating,σ 1=2.85% and σ 2=5.85%).The experimental results are firstly obtained in China from the real sonic fields in a single transonic axial compressor at high sound pressure conditions (>150dB).The experimental results and conclusions provide some reference for the further investigation on design of the acoustic treatment assemblies in aeroengine nacells and turbomachinery duct. |
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| Keywords: | Perforated linigs Noise control Noise reduction systems |
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