【摘要】 利用有限元和边界元方法建立了单层隔声窗传声损失(TransmissionLoss)的分析模型,在此基础上分析了不同厚度玻璃的隔声性能。研究表明隔声窗在低频附近传声损失曲线显示振荡的特性,在中频附近则显示平稳的增长趋势,玻璃厚度的增加同样会增加隔声窗的隔声性能。更多还原

【Abstract】 Based on the use of finite element method and boundary element method,a model of sound transmission loss of single window is established.Numerical methods are given to analyze the characteristics of sound transmission loss of different thickness windows.The results indicate that TL curve shows fluctuation around the low frequencies, but steady increase near the middle frequencies,and the capability of the sound insulation will be enhanced with the increase of the window’s thickness.更多还原