噪声与振动控制Issue(1)：200-203,4.DOI:10.3969/j.issn.1006-1335.2016.01.042
管道中微穿孔板吸声结构声学性能测试与分析
Acoustics Property Measurement and Analysis of Micro-perforated Panel Absorber in Pipeline
吕金磊 1彭强 1王海锋1
作者信息
- 1. 中国空气动力研究与发展中心 空气动力学国家重点试验室，四川 绵阳 621000
- 折叠
摘要
Abstract
Methods of experimental and numerical simulation were used to study the effects of the design parameters, such as thickness, aperture and perforation rate, on the acoustic performance of the absorbers with the micro-perforated panels. The experiment contents were mainly processed on a stationary-wave tube and a pipe-type test platform. The experiment contents relevant to the stationary wave tube were used to prove the correctness of the experiments. An algorithm for finding extreme points was taken in numerical simulation. Using this algorithm could help to directly determine the resonance points, i.e. the maximum noise absorption positions in the pores without solving the classical equations. On the other hand, the variation of sound absorption bandwidth could be determined by superimposing the two curves near the resonance points. The variation trends of the experimental and simulation results were consistent.关键词
声学/噪声/微穿孔板/风洞Key words
acoustics/noise/micro-perforated panel/wind tunnel分类
数理科学引用本文复制引用
吕金磊,彭强,王海锋..管道中微穿孔板吸声结构声学性能测试与分析[J].噪声与振动控制,2016,(1):200-203,4.
