摘要
提出一种穿孔吸声板,用于代替原有的吸声板,不仅可以减少材料的厚度,而且可以提高材料的吸声系数加宽吸声频带,以最大限度的提高经济指标,所研究的宽频变腔高阻吸声板经浙江省环保与振动控制专业协会测试,其吸声系数普遍高于普通微穿孔吸声板。
One microperforated panel absorber is presented in this paper, which is used for replacing the old one. It is not only reduce the thickness of material,but also improve the coefficient of sound absorption, and enlarge the frequency width of sound absorption. Therefor, it can improve the economic index as most maximum limit. This wide frequency changed hole and high resistance absober has tested by Zhejiang environment protection and libration control speciality association, the coefficient of sound absorption is all higher than normal microperforated panel absorber.
出处
《噪声与振动控制》
CSCD
北大核心
2007年第6期107-108,126,共3页
Noise and Vibration Control
关键词
声学
宽频
变腔高阻
微穿孔吸声板
acoustics
wide frequency
changed hole and high resistance
microperforated panel absorber
