中文摘要：

提出边界元-有限元-统计能量（BEM+FEM+SEA，简称BFS）混合方法模拟驻波管，即BFS驻波管模拟法，计算材料的隔声量。探究了不同边界条件对BFS驻波管模拟法隔声量计算结果的影响；通过与有限元（FEM）驻波管模拟法、有限元-统计能量（FEM+SEA，简称FS）混响室模拟法以及瑞利-李兹理论法所得隔声量对比，验证BFS方法的有效性和精度。结果表明，BFS驻波管模拟法能够较为准确地模拟驻波管，得到待测材料的隔声量，相对于有限元（FEM）驻波管模拟法，能够有效解决震荡问题，减小计算量，提升计算速度，可适用于全频段声学材料性能的计算和评估，弥补实验手段耗时费力的缺点，尤其是在新产品的开发阶段具有一定的实际意义。

英文摘要：

BEM-FEM-SEA hybrid method (BFS method) is proposed to simulate the standing wave tube to get the transmission loss of acoustic materials. The influence of different boundary conditions on the transmission loss is discussed.The effectiveness and accuracy of the BFS method is verified by comparing its isolation result with the results of FEM standing wave tube method, FEM-SEA reverberation simulating method and Rayleigh-Ritz method. The results show that the BFS method can accurately simulate the standing wave tube and obtain the sound insulation of the materials. In comparison with the FEM for simulation of the standing wave tube, this method can be used in the overall frequency domain with better accuracy and lower computation cost. It can make up for the shortcomings of the experimental means. It is of practical significance for research and development of new products.