The Effect of Different Distribution and Sizes of Apertures on Sound Absorption Characteristics of Perforated Plate
Abstract: The study is to investigate the influence of different pore size distribution on the effect of the sound absorption. Experimental and theoretical analysis shows that there is an optimal distribu-tion of the pore size distribution. Accordingly, a new physical sound absorption area is introduced by the study group, thus whether full-range sound absorption effect is good or bad will be evaluated simply. After that, the study group studied the optimum pore size distribution scheme under the condition of certain parameters by using the method of mathematical co-ordination, combining with the principle of acoustic impedance and selective sound absorption, and comparing sound-absorbing area. The results of experiment and theoretical analysis show that the scheme is determined by perforation rate, pore diameter, thickness of the plates and other structural parameters, which is also the physical meaning of the best distribution point of pore area.
文章引用: 潘路希 , 李易寒 , 温凌坤 , 杨为为 (2017) 不同孔径的分布对穿孔板吸声效果的影响。 声学与振动， 5， 1-4. doi: 10.12677/OJAV.2017.51001
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