摘要
为了考查三维波对消声器声学性能的影响,分别使用一维和三维方法计算消声器的传递损失,并同现有的实验结果进行比较。结果表明,一维理论只适用于截止频率以下的低频计算,而三维有限元法能准确计算任意频率下消声器的声学性能。
In order to test the three-dimensional wave＇ s effecting of silence to acoustic performance, one- dimensional and three-dimensional method is employed separately to calculate the transmission loss of silencer and compared with existing experimental results. It shows that one-dimensional theory is only applicable to low- frequency calculation, and three-dimensional finite element method can accurately calculate the acoustic performance of silencer at the arbitrary frequency.
出处
《船舶》
2009年第4期59-62,共4页
Ship & Boat
关键词
排气消声器
声学性能
传递损失
exhaust silencer
acoustic performance
transmission loss
