耦合条件下微穿孔板吸声特性研究

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Abstract The influence of the vibration of micro-perforated panel and back cavity panel, made of lightweight materials, on absorption coefficient must be taken into account. Based on the mode superposition method, the theoretical model of flexible micro-perforated panel cavity with flexible back panel (FMPPCFBP) is established. Then, the effects of stiffness, surface density, tension and damping on the sound absorption coefficient of the FMPPCFBP are studied, and the comparison made between the sound absorption coefficient under different boundary condition. Experimental data and finite element methods are used to verify the theory prediction. The result shows that, at the mode frequencies of the flexible micro-perforated panel (FMPP) and the flexible back panel (FBP), the absorption coefficient is improved. The absorption bandwidth can also be broadened, by configuring the parameters of FMPP and FBP properly.

Key words： structual acoustic coupling micro-perforated panel absorption coefficient mode superposition flexible back panel

Received: 13 March 2019 Published: 28 July 2020

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	Articles by authors
	HOU Jiuxiao1
	2
	ZHU Haichao1
	2
	YUAN Suwei1
	2

Cite this article:

HOU Jiuxiao1,2,ZHU Haichao1, et al. Acoustic absorption characteristics of a flexible micro-perforated panel cavity with a flexible back one[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(15): 156-162.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I15/156

[1] Lee Y Y, Lee E W M, Ng C F. Sound absorption of a finite flexible micro-perforated panel backed by an air cavity[J]. Journal of Sound and Vibration, 2005, 287(1-2):227-243.
[2] Lee Y Y, Lee E W M. Widening the sound absorption bandwidths of flexible micro-perforated curved absorbers using structural and acoustic resonances[J]. International Journal of Mechanical Sciences, 2007, 49(8):925-934.
[3] Toyoda M, Mu R L, Takahashi D. Relationship between Helmholtz-resonance absorption and panel-type absorption in finite flexible micro-perforated-panel absorbers[J]. Applied Acoustics, 2010, 71(4):315-320.
[4] Bravo T, Cédric Maury, Cédric Pinhède. Sound absorption and transmission through flexible micro-perforated panels backed by an air layer and a thin plate[J]. Journal of the Acoustical Society of America, 2012, 131(5):3853-3863.
[5] Bravo T, Maury C, Pinhède C. Vibro-acoustic properties of thin micro-perforated panel absorbers[J]. Journal of the Acoustical Society of America, 2012, 132(2):789-798.
[6] Bravo T, Maury C, Pinhède C. Enhancing sound absorption and transmission through flexible multi-layer micro-perforated structures[J]. Journal of the Acoustical Society of America, 2013, 134(5):3663-3673..
[7] Bravo T, Cédric Maury, Cédric Pinhède. Optimising the absorption and transmission properties of aircraft micro-perforated panels[J]. Applied Acoustics, 2014, 79:47-57.
[8] Zhou X, Drotleff H, Zhang T. Micro-perforated absorber - transparence and room acoustics[C]. In: 21rd International congress on sound and vibration (ICSV 2014), Beijing, China; 2014.
[9] Duan X. H, Wang H Q, et al. Sound absorption of a flexible micro-perforated panel absorber based on PVDF piezoelectric film [J]. Applied Acoustics, 2015, 88:84-89.
[10] Tan W H , Ripin Z M . Optimization of double-layered micro-perforated panels with vibro-acoustic effect[J]. Journal of the Brazilian Society of Mechanical Sciences & Engineering, 2016, 38(3):745-760.
[11] Yoo T . The modeling of sound absorption by flexible micro-perforated panels[D].West Lafayette, Indiana: Purdue University, 2008.
[12] Temiz MA, Tournadre J, Lopez Arteaga I, et al. Numerical estimation of the absorption coefﬁcient of ﬂexible micro-perforated plates in an impedance tube[C]. In: 23rd International congress on sound and vibration (ICSV 2016), Athens; 2016.
[13] Temiz MA, Tournadre J, Lopez arteaga I, et al. Modelling vibro-acoustic coupling in flexible micro-perforated plates by a patch-impedance approach[J]. Applied Acoustics, 2017, 125: 80-90.
[14] Hou K. Measurement and Modelling of Micro-Perforated Panels[D]. Purdue University, West Lafayette, United States, 2009.
[15] 赵晓丹, 李晓, 丁瑞. 机械阻抗与声阻抗结合提高微穿孔板低频吸声性能[J]. 声学学报, 2014(3):360-364.
[16] Zhao X , Fan X . Enhancing low frequency sound absorption of micro-perforated panel absorbers by using mechanical impedance plates[J]. Applied Acoustics, 2015, 88:123-128.
[17] MAA Dah-you. Potential of micro-perforated panel absorber[J]. Journal of the Acoustical Society of America, 1998, 104(5): 2861-2866.