摘要
基于管道声学理论,分析了气流和声波同时通过穿孔共振消声器的声传递机理,通过等效物理模型的建立与单元划分,推导了其声场传递矩阵,并用MATLAB对其声学性能进行了模拟,通过试验证明了模型的精确性。
Acoustical property of the perforated and resonance muffler is investigated based on sound propagation theory. The transmission matrix is deduced by establishing equivalent model and deviding the perforated and resonance muffler to finite elements. The MATLAB is used to simulate the formula, then the accuracy of these methods is validated by contrasting with the experiment data.
出处
《机械设计与制造》
北大核心
2008年第2期176-177,共2页
Machinery Design & Manufacture
基金
河南省科技攻关项目(0524260023)
关键词
穿孔共振管
消声器
传递矩阵
Perforated and resonance muffler
Muffler
Transmission matrix
