穿孔法改进泡沫铝的吸声性能 关键词：泡沫铝；穿孔；吸声性能；Helmholtz共振 [gap=1436]Key words：aluminum foam；drilling holes；sound absorption；Helmholtz—type resonator
基于14个网页-相关网页
泡沫铝的制备工艺对其吸声性能的影响 关键词]泡沫铝；孔径；孔隙率；吸声性能 [gap=563]Keywords： aluminum foam；cell size；porosity；sound absorption property
基于8个网页-相关网页
The material has better sound absorption properties when theporosity from 60% to 70% and the pore size from 300μm to 400μm.
当孔隙率在60％～70％、孔径大小在30μm～40μm时，材料具有较佳的吸声性能。
参考来源 - 石膏基吸声材料结构设计与性能调控·2,447,543篇论文数据，部分数据来源于NoteExpress
而在多孔金属材料一侧添加背衬是一种提高吸声性能的有效可行的方法。
Adding a back lining at one side of the porous metal material is an effective and workable way to improve its sound absorption properties.
结果表明，不同背衬对吸声覆盖层吸声性能的影响具有明显不同的特性。
The results show that the influences of various backings on the acoustic characteristics of anechoic coating are obviously different.
应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。
We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.
应用推荐