多孔纤维填充芳纶蜂窝夹层结构吸音隔音性能研究

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (12): 67-71.

多孔纤维填充芳纶蜂窝夹层结构吸音隔音性能研究

肖红波¹, 瞿航², 蓝国勇³

1.武汉交通职业学院智能制造学院,武汉430065;
2.武汉理工大学材料科学与工程学院,武汉430070;
3.广西德福特科技有限公司,来宾546100

收稿日期:2019-09-23 出版日期:2019-12-28 发布日期:2019-12-28
作者简介:肖红波(1979-),女,硕士,副教授,主要从事复合材料模具设计及性能方面的研究,306225498@qq.com。
基金资助:
广西科技计划项目(桂科AC16450001);武汉交通职业学院科研创新团队项目(CX2018A07)

ACOUSTIC PROPERTIES OF POROUS FIBER ASSEMBLY-FILLED NOMEX HONEYCOMB SANDWICH STRUCTURE

XIAO Hong-bo¹, QU Hang², LAN Guo-yong³

1.School of Intelligent Manufacturing, Wuhan Technical College of Communications, Wuhan 430065, China;
2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
3.Guangxi Deford Technology Co., Ltd., Guangxi 546100, China

Received:2019-09-23 Online:2019-12-28 Published:2019-12-28

摘要/Abstract

摘要： 为了提高芳纶蜂窝夹层复合材料的吸音降噪性能,在蜂窝夹芯中填充PET多孔纤维和PP纤维混合吸音材料,研究了蜂窝高度、多孔纤维填充量、蒙皮开微孔等对蜂窝夹层结构吸音系数(SAC)和传声损失(STL)的影响。结果表明:填充吸音棉、蒙皮开孔可有效改善复合材料夹层结构的吸音性能。在中高频段(0.8 kH～2.5 kHz)内,当纤维材料在蜂窝夹层结构中的填充量为300 g/m²时,SAC的峰值为0.84,提高了0.16,但纤维材料对结构STL的影响较小;蒙皮开微孔,有利于发挥微穿孔板的吸声作用和多孔纤维的吸音效果,SAC大幅度提高。

关键词: 多孔纤维, 芳纶蜂窝夹层结构, 吸音系数, 传声损失

Abstract: In order to improve the sound absorption and noise reduction performance of nomex honeycomb sandwich structure, the effects of honeycomb height, the filling content of porous fibers and the opening of microporous skin on the sound absorption coefficient (SAC) and sound transmission loss (STL) of honeycomb sandwich structures are explored. The experiment results indicate that SAC of sandwich structure can be effectively changed by filling sound absorption cotton and skin opening in 0.8 kHz~2.5 kHz. SAC can be improved by the increase of the fiber content. When the filling content of fiber material is 300 g/m², the peak of SAC is 0.84, which increases by 0.16. But the influence of fiber material on STL is weak. Microporous skin is beneficial to play the role of sound absorption of microperforated board and porous fiber, and SAC is greatly improved.

Key words: porous fiber, nomex honeycomb sandwich structure, sound absorption coefficient, sound transmission loss

中图分类号:

TB332

肖红波, 瞿航, 蓝国勇. 多孔纤维填充芳纶蜂窝夹层结构吸音隔音性能研究[J]. 玻璃钢/复合材料, 2019, 0(12): 67-71.

XIAO Hong-bo, QU Hang, LAN Guo-yong. ACOUSTIC PROPERTIES OF POROUS FIBER ASSEMBLY-FILLED NOMEX HONEYCOMB SANDWICH STRUCTURE[J]. Fiber Reinforced Plastics/Composites, 2019, 0(12): 67-71.

参考文献

[1] 罗玉清, 宋欢, 陆志远, 等. 芳纶蜂窝复合材料的制备及性能研究[J]. 高科技纤维与应用, 2018(4): 5-11.
[2] Aumjaud P, Fieldsend J E, Boucher M A, et al. Multi-objective optimization of viscoelastic damping inserts in honeycomb sandwich structures[J]. Composite Structures, 2015, 132: 451-463.
[3] 穆举杰, 刘玉, 闫海杰. 国产对位芳纶纸蜂窝芯的性能研究[J]. 高科技纤维与应用, 2013, 38(6): 21-23.
[4] 林希宁. 玄武岩纤维制备吸音/隔音复合材料的研究[D]. 广州: 广东工业大学, 2012.
[5] 孙高辉, 任晓荷, 隋富生, 等. 芳纶蜂窝芯材对聚酰亚胺泡沫吸声性能的影响[J]. 声学技术, 2018, 37(6): 447-448.
[6] 贾金荣, 汤海涛, 陈磊, 等. 填充蜜胺泡沫芳纶蜂窝蜂窝夹层板封闭声腔的结构—声耦合特性分析复合芯吸声性能研究[J]. 工程塑料应用, 2015, 3(12): 39-41.
[7] 王盛春, 邓兆祥, 王攀, 等. 蜂窝夹层板封闭声腔的结构-声耦合特性分析[J]. 中国机械工程, 2012, 23(22): 2761-2764.
[8] Huang W C, Ng C F. Sound insulation improvement using honeycomb sandwich panels[J]. Applied Acoustics, 1998, 53(1-3): 163-177.
[9] Hillereau N, Syed A A, Gutmark E J. Measurements of the acoustic attenuation by single layer acoustic liners constructed with simulated porous honeycombcores[J]. Journal of Sound and Vibration, 2005, 286(1-2): 21-36.
[10] 王志瑾, 徐庆华. V-型皱褶夹芯板与隔声性能实验[J]. 振动工程学报, 2006, 19(1): 65-69.
[11] Palumbo D, Klos J. The efects of voids and recesses on the transmission loss of honeycomb sandwich panels[J]. Noise Control Engineering Journal, 2011, 59(6): 631-640.
[12] 吴延洋. 蜂窝夹层板隔声特性研究与低噪声结构设计[D]. 南昌: 南昌航空大学, 2016.
[13] Yang Y, Chen Z, Chen Z F, et al. Sound insulation properties of sandwich structures on glass fiber felts[J]. Fiber Polymer, 2015, 16(7): 1568-1577.
[14] Hao A, Zhao H F, Chen Y J. Kenaf/polypropylene nonwoven composites: the influence of manufacturing conditions on mechanical, thermal, and acoustical performance[J]. Composite Part B, 2013, 54: 44-51.
[15] Lubomír L, Martin V, Barbora L, et al. Investigation of advanced mica powder nanocomposite filler materials: surface energy analysis, powder rheology and sound absorption performance[J]. Composite Part B, 2015, 77: 304-10.