Investigation on sound absorption properties of kapok fibers
Investigation on sound absorption properties of kapok fibers
复制标题
木棉纤维吸声性能研究
DOI：
10.1007/s10118-013-1241-8
复制
发表时间：
2013-02
期刊：
影响因子：
--
通讯作者：
Xu, Jian
中科院分区：
文献类型：
--
作者：
Xiang, Hai-fan;Wang, Dong;Liu, Hui-chao;Zhao, Ning;Xu, Jian
研究了天然木棉纤维的吸声性能。制备了不同堆积密度、厚度、纤维长度和取向的木棉纤维集合体，并利用阻抗管测试了其声学性能。结果表明：木棉纤维具有天然中空结构，具有良好的吸声性能;木棉纤维集合体的吸声系数受木棉纤维的堆积密度、厚度和排列方式的影响较大，而受纤维长度的影响较小。与商品玻璃棉和棉纤维集合体相比，厚度相同但体积密度小得多的木棉纤维集合体具有相似的吸声系数。木棉纤维声阻尼性能的理论模型与实验数据吻合较好。结果表明，木棉纤维是一种很有前途的轻质环保吸声材料。
Sound absorption properties of natural kapok fibers have been investigated. Kapok fibrous assemblies with different bulk density, thickness, fiber length and orientation were manufactured, and their acoustical performances were evaluated by using an impedance tube instrument. Results show that the kapok fiber has excellent acoustical damping performance due to its natural hollow structure, and the sound absorption coefficients of kapok fibrous assemblies are significantly affected by the bulk density, thickness and arrangement of kapok fibers but less dependent on the fiber length. Compared with assemblies of commercial glass wool and degreasing cotton fibers, the kapok fiber assemblies with the same thickness but much smaller bulk density may have the similar sound absorption coefficients. Theoretical modelling of the acoustical damping performance of kapok fibers shows a good agreement with the experimental data. All the results demonstrate that kapok fiber is a promising light and environment-friendly sound absorption material.
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DOI：
--
发表时间：
2002-02
期刊：
--
影响因子：
--
作者：
C. Brebbia;W. P. Wilde
通讯作者：
C. Brebbia;W. P. Wilde
DOI：
10.2495/hps020161
发表时间：
2002-02
期刊：
WIT Transactions on the Built Environment
影响因子：
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通讯作者：
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