摘要
基于管道声学理论,分析了气流和声波同时通过穿孔孔径的穿孔管扩张消声结构的声传递基理,通过等效物理模型简化与单元划分,推导其声场传递矩阵,理论计算与实验结果对比表明,所建数学模型具有较高的预测精度。
Acoustical property of cross-flow muffler is investigated based on sound propagation theory in this paper. The transmission matrix is deduced by establishing equivalent model and dividing the perforated pipe to finite elements. And the accuracy of this method is testified by contrasting it with experiment data.
出处
《噪声与振动控制》
CSCD
北大核心
2005年第2期33-35,42,共4页
Noise and Vibration Control
