Establishment of acoustic characteristic model of activated carbon fiber felts
Establishment of acoustic characteristic model of activated carbon fiber felts
复制标题
活性炭纤维毡声学特性模型的建立
DOI：
10.1080/00405000.2019.1603580
复制
发表时间：
2019-04
影响因子：
1.7
通讯作者：
Liu Qixia
中科院分区：
文献类型：
--
作者：
Shen Yue;Jiang Gaoming;Liu Qixia
摘要为了分析活性炭纤维毡的两个基本声学特性参数：传播常数和特性阻抗，根据声波在活性炭纤维材料中的传播理论，利用运动方程和连续性方程，建立了活性炭纤维毡特性阻抗的理论模型。以Zwikker和Kosten提出的声学理论为基础，考虑纤维间的振动影响，修正有效空气密度和有效体积模量，建立了活性炭纤维材料声学特性参数的理论模型。利用阻抗管测试了活性炭纤维材料在250-2500 Hz频率范围内的声阻抗，并采用双厚度法确定了活性炭纤维材料的传播常数和特性阻抗。通过对理论和试验中两个声学特性参数的统计对比，表明该理论模型具有可行性，可为开发和设计具有吸声性能的活性炭纤维材料提供参考。
Abstract In order to analyze two basic characteristic acoustic parameters of activated carbon fiber felts: propagation constant and characteristic impedance, the theoretical model of characteristic impedance concerning the two parameters was established by means of motion and continuity equations based on the propagation theory of acoustic waves in activated carbon fiber materials. On the basis of acoustic theories proposed by Zwikker and Kosten, taking into account of the vibrating influence occurring among fibers and modifying the effective air density and the effective bulk modulus, theoretical model of characteristic acoustic parameters of activated carbon fiber materials was established. Surface acoustic impedance was tested with an impedance tube when activated carbon fiber materials were subjected to an acoustic range of 250–2500 Hz frequencies, then propagation constant and characteristic impedance of activated carbon fiber materials were defined by the method of double thickness. Statistics of two acoustic characteristic parameters in theory and trial were compared and contrasted, which showed that the theoretical model had its feasibility and could provide reference for developing and designing the activated carbon fiber materials with sound absorbing properties.
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影响因子：
2.4
作者：
S. H. Burns
通讯作者：
S. H. Burns
DOI：
10.1080/00405000.2015.1097083
发表时间：
2016-09
期刊：
The Journal of The Textile Institute
影响因子：
--
作者：
Yue Shen;G. Jiang
通讯作者：
Yue Shen;G. Jiang
DOI：
10.1080/00405000.2014.899080
发表时间：
2014-06
期刊：
The Journal of The Textile Institute
影响因子：
--
作者：
Yue Shen;G. Jiang
通讯作者：
Yue Shen;G. Jiang
DOI：
--
发表时间：
1956
期刊：
--
影响因子：
--
作者：
S. Kelly;Michael P. Healey
通讯作者：
S. Kelly;Michael P. Healey
影响因子：
11.4
作者：
N. Jiang;J. Chen;D. Parikh
通讯作者：
N. Jiang;J. Chen;D. Parikh