铝纤维/聚酯纤维复合结构的低频吸声性能研究
Study on Low Frequency Sound Absorption Performance of Aluminum Fiber/Polyester Fiber Composites

DOI: 10.12677/OJAV.2021.91004, PP. 30-35

Keywords: 聚酯纤维，铝纤维板，复合结构，低频，吸声性能
Polyester Fiber, Aluminum Fiber, Composite Structure, Low Frequency, Sound Absorption Performance

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Abstract:

低频吸声结构一直是噪声控制领域的研究热点。本研究以聚酯纤维与铝纤维板为研究对象，通过研究材料放置方式、聚酯纤维材料厚度以及空腔厚度，最终得到具有较好低频吸声性的铝纤维/聚酯纤维复合结构。实验结果表明，当铝纤维板一侧面向声源、聚酯纤维材料厚度为8 mm、背后空腔厚度为190 mm时低频吸声性能最佳，在100 Hz处吸声系数达到0.57，在100~500 Hz的平均吸声系数大于0.74。考虑到性能成本效率，研究建议复合结构的空腔设置厚度在120~160 mm之间。
Low-frequency sound absorption structure has always been a research hotspot in the field of noise control. Polyester and aluminum fiberboard were used in this experiment. The impact of placement of materials, polyester fiber material thickness and cavity depth were studied to find the best low-frequency sound absorption performance of the aluminum fiber/polyester fiber composite structure. The experimental results show that performance is the best when the aluminum fiber-board is on the side of the sound source, the polyester fiberboard thickness is 8 mm, and cavity depth behind them is 190 mm. Under this condition, the sound absorption coefficient reaches 0.57 at 100 Hz, and the average sound absorption coefficient at 100~500 Hz is greater than 0.74. According to the ratio of property and cost, the cavity depth range from 120 mm to 160 mm is suggested finally.

References

[1]	李燊. 浅析当前噪声污染情况及环境噪声监测问题、对策[J]. 科技创新导报, 2014(29): 122.
[2]	刘斌. 低频噪声的危害及监测方法[J]. 科技与创新, 2016(21): 104+7.
[3]	彭立民, 梁善庆, 孙华林. 我国木质吸音材料概述[C]//中国木结构技术及产业发展高峰论坛. 牡丹江: 中国林科院木材工业研究所, 2011: 137-141.
[4]	Narang, P.P. (1995) Material Parameter Selection in Polyester Fibre Insulation for Sound Transmission and Absorption. Applied Acoustics, 45, 335-358. https://doi.org/10.1016/0003-682X(95)00007-V
[5]	Yang, T., Saati, F., Horoshenkov, K.V., et al. (2019) Study on the Sound Absorption Behavior of Multi-Component Polyester Nonwovens: Experimental and Numerical Methods. Textile Research Journal, 89, 3342-3361. https://doi.org/10.1177/0040517518811940
[6]	王军锋, 彭立民, 傅峰, 等. 木纤维/聚酯纤维复合材料的制备工艺及其吸声性能[J]. 木材工业, 2013, 27(6): 41-44.
[7]	张斌, 裴春明, 张建功, 等. 聚酯纤维用于低频降噪的研究[J]. 中国电力, 2017, 50(4): 94-99.
[8]	王佐民, 俞悟周. 铝纤维板共振吸声结构初析[C]//全国环境声学电磁辐射环境学术会议. 三亚: 中国声学学会, 中国环境科学学会, 2004: 158-162.
[9]	马广斌, 朱正吼, 夏小鸽. 一种新型中低频吸声材料的研制[J]. 功能材料, 2008, 39(5): 861-863.
[10]	周兵, 涂琪, 倪园, 等. 铝纤维板的复合结构吸声性能分析[J]. 噪声与振动控制, 2017, 37(1): 167-171.
[11]	袁健, 林胜, 贺才春. 阻抗管中吸声系数的传递函数测量法[J]. 噪声与振动控制, 2006, 26(1): 68-70.
[12]	蔡俊. 噪声污染控制工程[M]. 北京: 中国环境科学出版社, 2011.
[13]	李晶. 环境友好型非织造布吸声材料的研究[D]: [硕士学位论文]. 天津: 天津工业大学, 2007.
[14]	涂琪. 超、特高压变电站降噪用吸声材料的优化设计研究[D]: [硕士学位论文]. 武汉: 华中科技大学, 2016.

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