穿孔率和厚度对单层微穿孔板吸声性能的影响
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摘要
设计具有不同穿孔率和不同厚度的微穿孔板,测试其吸声性能。以马大猷教授的微穿孔板吸声理论为基础,厚度增加会提高微穿孔板的吸声系数,但是微穿孔板厚度增加会减小高频范围内的吸声频带,穿孔率越大,微穿孔在高频率范围内具有宽的吸声频带。同时比较了Fok的考虑微穿孔间的相互影响的模型与实验测试结果相比较可知,考虑微穿孔间的相互影响的模型更接近实验结果。同时研究了微穿孔板吸声的模型,通过和实验获得的数据比较可知,考虑微穿孔间的相互影响的模型更和实验数据更接近。
The microperforation board with different perforation rate and different thickness was designed to test its sound absorption performance. With Maa,on the basis of the acoustic absorption theory of microperforated panel thickness would increase the sound absorption coefficient of the micro-perforated plate,but the thickness increase of microperforated panel will reduce the high frequency range acoustic absorption band,perforation rate,the greater the micro perforation in wide frequency range with high acoustic absorption band. Compared with the experimental results,the model of the interaction between the microperforation and the microperforation was compared,and the model of the interaction between microperforations was more closely related to the experimental results. At the same time,the model of micro perforated panel absorption is studied,and the data obtained through experiments and experiments shows that the model of the interaction between micro-perforations is more closely related to the experimental data.
The microperforation board with different perforation rate and different thickness was designed to test its sound absorption performance. With Maa,on the basis of the acoustic absorption theory of microperforated panel thickness would increase the sound absorption coefficient of the micro-perforated plate,but the thickness increase of microperforated panel will reduce the high frequency range acoustic absorption band,perforation rate,the greater the micro perforation in wide frequency range with high acoustic absorption band. Compared with the experimental results,the model of the interaction between the microperforation and the microperforation was compared,and the model of the interaction between microperforations was more closely related to the experimental results. At the same time,the model of micro perforated panel absorption is studied,and the data obtained through experiments and experiments shows that the model of the interaction between micro-perforations is more closely related to the experimental data.
引文
1 Maa D Y.Potential of micro-perforated panel absorber.Journal of the Acoustical Society of America,1998;104:2861-2866
2 Atalla N,Sgard F.Modeling of perforated plates and screens using rigid frame porous models.Journal of Sound and Vibration 2007;303:195-208
3汤慧萍,朱纪磊,王建永,等.不锈钢纤维多孔材料的吸声性能.中国有色金属学报,2007;17(12):1943-1947Tang Huiping,Zhu jilei,Wang Jianyong,et al.The sound absorption of stainless steel fiber porous material.Journal of China Nonferrous Metals,2007;17(12):1943-1947
4 Melling T H.The acoustic impedance of perforates at medium and high sound pressure levels.Journal of Sound and Vibration,1973;29(1):1-65
5 Randeberg R T.Perforated panel absorbers with viscous energy dissipation enhanced by orifice design.Fakultet for Informas Jonsteknologi Matematikkog Elektroteknikk,2000;(1):15-18
6 Lee S H,Ih J G,Peat K S.A model of acoustic impedance of perforated plates with bias flow considering the interaction effect.Journal of Sound and Vibration,2007;303(3-5):741-752
7张玲.吸声材料及结构研究现状与展望.大众科技,2012;(11):55-56Zhang Ling.The present situation and prospect of sound absorbing materials and structures.The Public Science and Technology,2012;(11):55-56
8 Maa D Y,Liu K.Nonlinear standing waves:Theory and experiments.Journal of the Acoustical Society of America,1995;98(5):2753-2763
9周洪,黄光速,陈喜荣,等.高分子吸声材料.化学进展,2012;23(12):45-49Zhou Hong,Huang Guangsu,Chen Xirong,et al.Polymer absorbing sound material.Progress in Chemistry,2012;23(12):45-49
10 Yang C,Cheng L,Pan J.Absorption of oblique incidence sound by a finite micro-perforated panel absorber.Journal of the Acoustical Society of America,2013;133(6):201-209
2 Atalla N,Sgard F.Modeling of perforated plates and screens using rigid frame porous models.Journal of Sound and Vibration 2007;303:195-208
3汤慧萍,朱纪磊,王建永,等.不锈钢纤维多孔材料的吸声性能.中国有色金属学报,2007;17(12):1943-1947Tang Huiping,Zhu jilei,Wang Jianyong,et al.The sound absorption of stainless steel fiber porous material.Journal of China Nonferrous Metals,2007;17(12):1943-1947
4 Melling T H.The acoustic impedance of perforates at medium and high sound pressure levels.Journal of Sound and Vibration,1973;29(1):1-65
5 Randeberg R T.Perforated panel absorbers with viscous energy dissipation enhanced by orifice design.Fakultet for Informas Jonsteknologi Matematikkog Elektroteknikk,2000;(1):15-18
6 Lee S H,Ih J G,Peat K S.A model of acoustic impedance of perforated plates with bias flow considering the interaction effect.Journal of Sound and Vibration,2007;303(3-5):741-752
7张玲.吸声材料及结构研究现状与展望.大众科技,2012;(11):55-56Zhang Ling.The present situation and prospect of sound absorbing materials and structures.The Public Science and Technology,2012;(11):55-56
8 Maa D Y,Liu K.Nonlinear standing waves:Theory and experiments.Journal of the Acoustical Society of America,1995;98(5):2753-2763
9周洪,黄光速,陈喜荣,等.高分子吸声材料.化学进展,2012;23(12):45-49Zhou Hong,Huang Guangsu,Chen Xirong,et al.Polymer absorbing sound material.Progress in Chemistry,2012;23(12):45-49
10 Yang C,Cheng L,Pan J.Absorption of oblique incidence sound by a finite micro-perforated panel absorber.Journal of the Acoustical Society of America,2013;133(6):201-209