摘要
本文用状态参量法描述消声器中声的传播,推导出两级串联具有任意长度内插管的典型消声器的消声量计算公式。并以此公式用计算机辅助设计了多级抗性消声器。经实测验证,所设计的消声器性能良好。
In this paper, the four pole state parameters is used to describe the trans-mission of sound in the muffler and then the sound attenuation formula of the typical two stage reactive muffler with inserter tube is deduced. Based on this formula in combination with using CAD, a reactive stage muffler has been designed. It is proved that the muffler is of good performance by expe-riment.
