摘要
开展两韧带手性结构以及多层四韧带手性结构覆盖层的隔声量理论计算和仿真分析,探讨手性结构隔声机理。制备两韧带手性结构以及多层四韧带手性结构试验件,对其开展声管试验研究,探讨手性覆盖层橡胶材料硬度参数、手性结构周期尺寸和周期数目、有无手性结构以及手性结构节点中有无散射子等对隔声效果的影响。
The theoretical calculation and simulation analysis of the sound insulation of the bichiral structure and tetrachiral layer coating are carried out.The bichiral structure and tetrachiral structure specimens are prepared,and the sound tube tests are carried out.The effects of hardness of rubber,the cell size and periodicity of the structure,the chiral and nonchiral structure,with and without inclusions in the node of the chiral structure on the sound insulation are discussed.
作者
张林芳
ZHANG Linfang(No.4 Military Representative Office of Beijing,Beijing 100073,China)
出处
《噪声与振动控制》
CSCD
2020年第5期248-252,共5页
Noise and Vibration Control
关键词
声学
两韧带手性结构
四韧带手性结构
水声声管
隔声量
acoustics
bichiral layer coating
tetrachiral layer coating
acoustic tube
sound insulation
