In order to carry out the acoustic and aerodynamics performances tests, seven resonators are designed and made, and a specialized engine intake silencer and exhaust silencers test bench was designed.
在此基础上设计并加工了两类七个共振型进气消声器，研制了发动机进排气消声器性能测试实验台，开发了发动机进排气消声器声学性能测试软件，并在该实验台上测试了所设计的进气消声器静态工况下的传声损失，从实验的角度研究了共振腔的尺寸、形状对其共振频率的影响及其趋势。
参考来源 - 发动机进气消声器研究In view of the fact that the air cleaner may act as an effective intake silencer, the present paper investigated the acoustic attenuation characteristics of air cleaner in detail.
由于空气滤清器可以作为一个有效的进气消声器，论文对空气滤清器的声学特性进行了详细研究。
参考来源 - 汽车发动机空气滤清器消声特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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