| METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
| Research on Acoustic Modeling and Acoustic Performance Prediction of Layered Porous Materials |
| YU Changshuai1,2,3, LUO Zhong1,*, LUO Haitao2,3, HE Fengxia1
|
1 School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
2 Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
3 Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China |
|
|
|
|
Abstract Porous material is an important acoustic material. In engineering, different porous materials are often layered to develop acoustic materials with high sound absorption performance. In this work, according to the propagation equation of sound wave in fluid and continuity of surface impedance, impedance translation theorem is derived, and the Johnson-Champoux-Allard (JCA) acoustic model of porous material is established. The porous material is equivalent to fluid. The JCA model is combined with impedance translation theorem, the recurrence formula of la-yered porous material acoustic model is established, and then the sound absorption performance of layered porous material is evaluated. Layered porous materials are designed under different working conditions,then the finite element model of impedance tube and porous material is established, and the evaluation method of sound absorption performance of layered porous material is verified by finite element simulation method. The impedance tube test bench is built, and the correctness of sound absorption performance evaluation of layered porous material based on impe-dance translation theorem is further verified by the test method.
|
|
Published: 25 August 2022
Online: 2022-08-29
|
|
|
| Fund:Natural Science Foundation of Liaoning Province (2020-MS-029). |
|
|
1 Wang Y H. Research on sound absorption properties and mechanisms of multi-level bionic coupling materials. Ph.D. Thesis, Jilin University, China, 2014(in Chinese).
王永华. 多级仿生耦合材料吸声性能及机理研究.博士学位论文,吉林大学, 2014.
2 Sellen N, Galland M A, Hilbrunner O. In: 8th AIAA/CEAS Aeroacoustics Conference. Breckenridge, Colorado, 2002,pp.2054.
3 Anton J, Green E. Institute of Noise Control Engineering,2018,258,3143.
4 Delany M E, Bazley E N. Applied Acoustics, 1970, 3(2), 105.
5 Miki Y. Journal of the Acoustical Society of Japan (E), 1990,11,19.
6 Champoux Y, Allard J F. Journal of Applied Physics,1991,70(4),1975.
7 Johnson D L, Koplik J, Dashen R, et al. Journal of Fluid Mechanics, 1987, 176(1), 379.
8 Biot M A. Journal of the Acoustical Society of America,1956,28(2),168.
9 Liu X J, Liu J L, Xu B J, et al. Journal of Vibration and Shock. 2012, 31(5),106(in Chinese).
刘新金, 刘建立, 徐伯俊,等. 振动与冲击, 2012, 31(5),106.
10 Ning J F, Zhao G P. Journal of Vibration and Control, 2016,22(12), 2861.
11 Allard J F, Atalla N. Propagation of sound in porous media, modeling sound absor-bing materials; second edtion, John Wiley & Sons, Ltd Press, 2009, pp.13.
12 Atalla Y, Panneton R. Canadian Acoustics, 2005, 33(1), 11.
13 Zhan F L, Xu J W. Virtual.lab acoustics simulation calculation from introduction to mastery, Northwest University of Technology Press, China, 2013(in Chinese).
詹福良, 徐俊伟. Virtual.Lab Acoutstics声学仿真计算从入门到精通, 西北工业大学出版社, 2013.
14 Utsuno H, Tanaka T, Fujikawa T, et al. Journal of the Acoustical Society of America, 1989, 86(2), 637.
15 Olny X, Panneton R. Journal of the Acoustical Society of America, 2008, 123(2),814. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2022, Vol. 36 
