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本文用截面近似法对圆截面弯曲波导系统中的声场进行了求解,并导出了相应的传递损失表达式.其传递损失的数值计算值与实验结果基本吻合.同时本文对几种不同的消声结构置入圆截面弯曲波导系统中的传递损失进行了实验研究,并给出了其传递损失曲线.
In this paper, the cross-section approximate method is used to solve the acoustic field in a circularly curved waveguide system, and the corresponding expression of transmission loss is deduced.The calculated value of the transmission loss is in good agreement with the experimental results.At the same time, The experimental study of the transmission loss of the structure in a circularly curved waveguide system is given and its transmission loss curve is given.