Transmission loss analysis for composite laminates based on two-dimensional equivalent hybrid FE-SEA method

被引：0
|
作者：
Wang C. [1 ]
Yan Q. [1 ]
Zhou H. [1 ]
Mu Q. [1 ]
机构：
[1] Aircraft Strength Research Institute of China, Aviation Science and Technology Key Laboratory of Aeronautical Acoustics and Vibration Intensity, Xi'an
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 11期
关键词：
Composite laminates; Equivalent stiffness; Hybrid FE-SEA method; Transmission loss; Turbulent pulsating noise;
D O I：
10.13465/j.cnki.jvs.2020.11.030
中图分类号：
学科分类号：
摘要：
The transmission loss of composite laminates under turbulent pulsating noise excitation was studied. Firstly, the composite laminates are equivalent to a single-layer isotropic panel based on general laminate theory, and the hybrid FE-SEA method is used to research the transmission loss of composite laminates. And then, the transmission loss experiment was carried out, and the results of hybrid FE-SEA method were compared with SEA and experimental results. The results show that the hybrid FE-SEA results are consistent with the distribution trend of experimental results and the error is relatively small. The error of transmission loss is within 2 dB when the frequency 3 000 Hz-10 000 Hz, but the equivalent of stiffness leads to a relatively large error around frequency 2 000 Hz. Compared with the SEA method, the hybrid FE-SEA method comprehensively considers the boundary conditions and the detailed geometric features of the composite laminates.It not only accurately calculates the inherent characteristics of the composite laminates, but also makes the results of transmission loss well consistent with the experimental values in the whole frequency band. Therefore, the two-dimensional equivalent FE-SEA hybrid model established in this paper can accurately predict the transmission loss of composite laminates under turbulent pulsating noise excitation. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：226 / 231and264
相关论文
共 17 条
  • [1] BHAT W V., Flight test measurement of exterior turbulent boundary layer pressure fluctuations on Boeing model 737 airplane, Journal of Sound and Vibration, 14, 4, pp. 439-457, (1971)
  • [2] MIXSON J S, WILBY J F., Interior noise, Aeroacoustics of Flight Vehicles: Theroy and Practice, 2, (1991)
  • [3] LI X, YU K, RUI Z, Et al., Sound transmission loss of composite and sandwich panels in thermal environment [J], Composites, Part B: Engineering, 133, pp. 1-14, (2017)
  • [4] STEPHEN A H, SHUNG H S, DONALD J N., Engineering vibro-acoustic analysis: methods and applications, (2016)
  • [5] ZHOU R, CROCKER M J., Sound transmission loss of foam-filled honeycomb sandwich panels using statistical energy analysis and theoretical and measured dynamic properties [J], Journal of Sound and Vibration, 329, 6, pp. 673-686, (2010)
  • [6] WANG T, LI S, RAJARAM S, Et al., Predicting the sound transmission loss of sandwich panels by statistical energy analysis approach[J], Journal of Vibration and Acoustics, 132, 1, pp. 1-7, (2010)
  • [7] (2016)
  • [8] LYON R H., Theory and application of statistical energy analysis, (1995)
  • [9] SHORTER P J, LANGLEY R S., On the reciprocity relationship between direct field radiation and diffuse reverberant loading [J], Journal of the Acoustical Society of America, 117, 1, pp. 85-95, (2005)
  • [10] YUAN C, BERGSMA O, BEUKERS A., Sound transmission loss prediction of the composite fuselage with different methods [J], Applied Composite Materials, 19, 6, pp. 865-883, (2012)
12