基于声传递理论的层状一维二组元声子晶体的隔声降噪研究  

Study on Sound Insulation of 1D Two-component Phononic Crystal Based on the Theory of Sound Transmission

作　　者：张振国[1] 刘英[1] 张恒[2] 

机构地区：[1]中原工学院材料与化工学院,郑州450007 [2]郑州大学材料科学与工程学院,郑州450052

出　　处：《材料导报》2013年第16期155-158,共4页Materials Reports

基　　金：河南省科技厅基础与前沿技术研究项目(122300410165);河南省教育厅科技攻关项目(12A430023)

摘　　要：采用声传递理论及其研究方法,对无限和有限周期一维二组元声子晶体进行理论研究,推导出其模拟方程,在此基础上进行了计算机模拟研究,并通过实验进行了验证。结果显示,无限周期的带隙和有限周期的禁带表现出很好的相适应性,有限周期的模拟结果与实验结果表现出一致性,表明布拉格散射能够很好地解释有限周期的隔声降噪机理。Using theories and research methods for sound transmission, the infinite and finite periodic 1D two- component phononie crystals were studied, and the analog equations were derived. Then the computer simulations were carried out and the results were verified through experiments. The investigation indicated the suitability of the bandgap of the infinite periodic phononic crystal to the forbidden gap of the finite periodic phononic crystal, and the consistency between the simulated and experimental results, which inferred that the Bragg scattering can explain the finite periodic sound insulation.

关 键 词：一维二组元声子晶体 声传递理论 隔声降噪 计算机模拟 驻波管 

分 类 号：TU112.21[建筑科学—建筑理论]